XC9281B10E1R-G

XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ETR05063-007 HiSAT-COT ® Control Extremely Small 600mA Step-Down DC/DC Converters ☆Green Operation Compatible ■GENERAL DESCRIPTION The XC9281/XC9282 series are 600mA synchronous rectification DC/DC converters adopting HiSAT-COT (*) control. Due to increasing the oscillation frequency to high frequency, coil with a size of 1.0 x 0.5 mm can be used. A 0.6 x 0.3 mm ceramic capacitor can be used for the input capacitance (CIN) and the output capacitance (CL), realizing that the mounting area including peripheral components can be reduced to 3.52 mm2. Due to increasing the oscillation frequency to a high frequency, the mounting area is reduced. Additionally, an efficiency equal to or higher than that of conventional products can realize by improving on-resistance and current consumption. Because of these features, XC9281/XC9282 series are ideal for equipment requiring miniaturization and low profile mounting area, and battery-powered equipment such as mobile equipment. Moreover, the high-speed transient response technology of the HiSAT-COT control makes it possible to minimize the fluctuation of the output voltage for a load transient condition. This feature is optimal for applications requiring a fast response and output voltage stability for an instantaneous load fluctuation like FPGA. (*) HiSAT-COT is a proprietary high-speed transient response technology for DC/DC converter which was developed by Torex. It is Ideal for the LSI's that require high precision and high stability power supply voltage. ■FEATURES ■APPLICATIONS ● Smart phones / Mobile phones ● Wireless earphone / Headset Input Voltage Range : 2.5V ~ 5.5V Output Voltage Range : 0.7V ~ 1.15V (±2.0%) 1.2V ~ 3.6V (±1.5%) ● Wearable devices ● DSC / Camcorder ● Portable game consoles Output Current : 600mA Quiescent Current : 11μA (XC9282 PWM/PFM Auto) ● Smartcard Oscillation Frequency : 4MHz, 6MHz Efficiency (fOSC=4MHz) : 90.0% (VIN=3.7V,VOUT=1.8V,IOUT=200mA) ● Power supply for module Control Methods : HiSAT-COT Control PWM Control (XC9281) ● Various small power sources PWM/PFM Auto (XC9282) ■PCB IMAGE Protection Functions : Current Limit Functions : Soft-Start, UVLO CL Discharge (Type B) Input / Output Capacitor : Ceramic Capacitor Operating Ambient Temperature : - 40℃ ~ 105℃ Package : LGA-6B01 (1.2 x 1.2 x 0.3mm) Environmentally : WLP-5-06 (0.88 x 0.96 x 0.33mm) EU RoHS Compliant, Pb Free ■TYPICAL PERFORMANCE CHARACTERISTICS ■TYPICAL APPLICATION CIRCUIT XC9281B18D / XC9282B18D (VOUT=1.8V) L = 1.0μH (DFE18SAN1R0MG0L) CIN = 4.7μF (GRM035R60J475ME15) CL = 4.7μF (GRM035R60J475ME15) VIN 2.5 ~ 5.5V CIN : 4.7uF (0.6x0.3x0.5mm) L : 1.0uH XC9281/XC9282 CE (1.0x0.5x0.55mm) VIN LX CE VOUT GND VOUT 1.8V / 600mA CL : 4.7uF (0.6x0.3x0.5mm) 1/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■BLOCK DIAGRAM 1) XC9281/XC9282 Series Type A R1 Phase Compensation CFB Error Amp. VOUT + + R2 Vref with Soft Start GND CE (*) VIN Comparator - - Current Limit S Q Logic R On Time Generator Synch. Buffer Driver Lx VIN VOUT CE Control Logic, UVLO PWM/PFM Selector "PWM/PFM Selector" in the XC9281 series is fixed to PWM control. "PWM/PFM Selector" In the XC9282 series is fixed to PWM/PFM automatic switching control. Diodes inside the circuit are an ESD protection diode and a parasitic diode. 2) XC9281/XC9282 Series Type B R1 VOUT Phase Compensation CFB Error Amp. + - R2 Vref with Soft Start GND CE (*) "PWM/PFM CE Control Logic, UVLO CL Auto-Discharge Current Limit Comparator + S Q Logic R On Time Generator Synch. Buffer Driver VIN VOUT PWM/PFM Selector Selector" in the XC9281 series is fixed to PWM control. "PWM/PFM Selector" In the XC9282 series is fixed to PWM/PFM automatic switching control. Diodes inside the circuit are an ESD protection diode and a parasitic diode. 2/31 VIN Lx XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■PRODUCT CLASSIFICATION 1) Ordering Information XC9281①②③④⑤⑥-⑦ PWM Control XC9282①②③④⑤⑥-⑦ PWM/PFM Automatic switching control (*1) DESIGNATOR ITEM ① Type SYMBOL A B ②③ Output Voltage 07 ~ 36 ④ Oscillation Frequency ⑤⑥-⑦(*1) Packages (Order Unit) DESCRIPTION Refer to Selection Guide Output voltage options e.g. 1.2V → ②=1, ③=2 1.25V → ②=1, ③=C 0.05V increments : 0.05=A, 0.15=B, 0.25=C, 0.35=D, 0.45=E, 0.55=F, 0.65=H, 0.75=K, 0.85=L, 0.95=M D 4.0MHz E 6.0MHz 1R-G LGA-6B01 (5,000pcs/Reel) 0R-G WLP-5-06 (5,000pcs/Reel) The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. 2) Selection Guide TYPE OUTPUT VOLTAGE CHIP ENABLE CL AUTODISCHARGE UVLO A Fixed Yes No Yes B Fixed Yes Yes Yes TYPE SOFT-START TIME CURRENT LIMIT AUTOMATIC RECOVERY (CURRENT LIMIT) A Fixed Yes Yes B Fixed Yes Yes 3/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■PIN CONFIGURATION 1 VOU T GND 6 LX 5 2 NC VIN 4 3 CE CE 1 VOU T 4 PIN NAME FUNCTIONS 4 VOUT Output Voltage Monitor - NC No Connection 3 1 CE Chip Enable 4 2 VIN Power Input 5 5 Lx Switching Output 6 3 GND Ground WLP-5-06 1 2 ■FUNCTION PIN NAME CE SIGNAL STATUS L Stand-by H Active Please do not leave the CE pin open. 4/31 3 GND WLP-5-06 (BOTTOM VIEW) ■PIN ASSIGNMENT PIN NUMBER LX 5 LGA-6B01 (BOTTOM VIEW) LGA-6B01 2 VIN XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNITS VIN Pin Voltage VIN -0.3 ~ 6.2 V Lx Pin Voltage VLx -0.3 ~ VIN + 0.3 or 6.2(*1) V 4.0(*2) V VOUT Pin Voltage VOUT CE Pin Voltage VCE Power Dissipation (Ta=25℃) LGA-6B01 WLP-5-06 -0.3 ~ VIN + 0.3 or -0.3 ~ 6.2 V 760 (JESD51-7 board) (*3) Pd 500 (JESD51-7 board) (*3) mW Operating Ambient Temperature Topr -40 ~ 105 ℃ Storage Temperature Tstg -55 ~ 125 ℃ * All voltages are described based on the GND pin. (*1) The maximum value should be either V +0.3V or 6.2V in the lowest. IN (*2) The maximum value should be either V +0.3V or 4.0V in the lowest. IN (*3) The power dissipation figure shown is PCB mounted and is for reference only. Please refer to PACKAGING INFORMATION for the mounting condition. 5/31 XC9281/XC9282 Series XC9281/XC9282 Series is Not Recommended for New Designs. ■ELECTRICAL CHARACTERISTICS XC9281 / XC9282 Series PARAMETER SYMBOL Output Voltage VOUT Operating Voltage Range VIN Maximum Output Current IOUTMAX UVLO Voltage(*3) VUVLO Quiescent Current (XC9281) Iq Quiescent Current (XC9282) Iq Stand-by Current Ta=25℃ CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT V ① 2.5 - 5.5 V ② When connected to external components (*2), VIN = 600 - - mA ② VOUT = 0V, VIN = VCE VIN Voltage which Lx pin holding “L” level (*7) 1.66 2.00 2.40 V ① VOUT =4.0V - 590 948 μA ③ VOUT =4.0V - 11.0 17.6 μA ③ ISTB VIN = 5.5V, VCE = 0V, VOUT = 0V, VLx = 0V - 0.0 0.6 μA ④ ON time tON When connected to external components, VIN=, IOUT=1mA ns ② Lx SW”H”ON Resistance(*4) RLXH VIN = 3.6V, VOUT = 0V, ILX = 100mA (*5) - 0.32 0.50 Ω ⑤ Lx SW”L”ON Resistance(*4) RLXL VIN = 3.6V, VOUT = 3.9V, ILX = 100mA (*5) - 0.26 0.35 Ω ⑤ Lx SW”H” Leakage Current ILeakH VIN=5.5V, VCE=0V, VOUT=0V, VLX=5.5V - 0.0 10.0 μA ④ Lx SW”L” Leakage Current ILeakL VIN=5.5V, VCE=0V, VOUT=0V, VLX=0V - 0.0 0.3 μA ④ Current Limit (*6) ILIMH VIN = 3.6V, VOUT=0V ILx until Lx pin oscillates 750 1000 1500 mA ⑥ Output Voltage Temperature Characteristics ΔVOUT/ (VOUT・ΔTopr) - ±100 - ppm/℃ ① CE ”H” Voltage VCEH 1.20 - 5.50 V ① CE ”L” Voltage VCEL GND - 0.30 V ① CE ”H” Current ICEH VCE = 5.5V, VOUT = 4.0V -0.1 0.0 0.1 μA ③ CE ”L” Current ICEL VIN = 5.5V, VCE = 0V, VOUT = 0V -0.1 0.0 0.1 μA ④ Soft-Start Time tSS VIN = 3.6V, VCE = 0V→3.6V, VOUT = VOUT(T) × 0.9 After "H" is fed to CE, the time by when clocks are generated at Lx pin. 54 110 201 μs ① VCE = 0V, VOUT = 1.0V 100 145 200 Ω ⑦ VIN = , VOUT = VOUT(T)×1.2→VOUT(T)×0.8 VOUT Voltage when Lx pin voltage changes from "L" level to "H" level (*1)(*7) VIN = , VOUT = VOUT(T)×1.2→VOUT(T)×0.8 VOUT Voltage when Lx pin voltage changes from "L" level to "H" level (*1)(*7), -40℃≦Topr≦105℃ VIN = 5.5V, VOUT = 0V, VCE Voltage which Lx pin holding “H” level (*7) VIN = 5.5V, VOUT = 0V, VCE Voltage which Lx pin holding “L” level (*7) CL Discharge Resistance RDCHG (B Type) Unless otherwise stated, VIN=5V, VCE=5V, VOUT(T)=Nominal Value, NOTE: (*1) For PWM control. (*2) When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep Pch driver turning on even though the output current is not so large. If current is further pulled from this state, output voltage will decrease because of Pch driver ON resistance. (*3) Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage. (*4) Design value for WLP-5-06 (*5) R LXH= (VIN - Lx pin measurement voltage) / 100mA, RLXL= Lx pin measurement voltage / 100mA (*6) Current limit denotes the level of detection at peak of coil current. (*7) "H" = V - 1.2V ~ V IN IN , "L" = -0.1V ~ 0.1V 6/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■ELECTRICAL CHARACTERISTICS (Continued) SPEC Table tON NOMINAL INPUT OUTPUT VOLTAGE VOLTAGE VOUT(T) VIN MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. 0.70 2.70 0.686 0.700 0.714 32 65 98 6 43 62 0.75 2.75 0.735 0.750 0.765 34 68 102 7 45 63 0.80 2.80 0.784 0.800 0.816 35 71 107 7 48 67 0.85 2.85 0.833 0.850 0.867 37 75 113 7 50 71 0.90 2.90 0.882 0.900 0.918 39 78 117 8 52 72 0.95 2.95 0.931 0.950 0.969 40 81 122 8 54 76 1.00 3.00 0.980 1.000 1.020 49 83 117 8 56 78 1.05 3.05 1.029 1.050 1.071 51 86 121 9 57 81 1.10 3.10 1.078 1.100 1.122 53 89 125 9 59 83 1.15 3.15 1.127 1.150 1.173 54 91 128 9 61 85 1.20 3.20 1.182 1.200 1.218 56 94 132 37 63 89 1.25 3.25 1.232 1.250 1.268 57 96 135 38 64 90 1.30 3.30 1.281 1.300 1.319 58 98 138 39 66 93 1.35 3.35 1.330 1.350 1.370 60 101 142 40 67 94 1.40 3.40 1.379 1.400 1.421 61 103 145 41 69 97 1.45 3.45 1.429 1.450 1.471 63 105 147 42 70 98 1.50 3.50 1.478 1.500 1.522 64 107 150 42 71 100 1.55 3.55 1.527 1.550 1.573 65 109 153 43 73 103 1.60 3.60 1.576 1.600 1.624 66 111 156 44 74 104 1.65 3.65 1.626 1.650 1.674 67 113 159 45 75 105 1.70 3.70 1.675 1.700 1.725 69 115 161 46 77 108 1.75 3.75 1.724 1.750 1.776 70 117 164 46 78 110 1.80 3.80 1.773 1.800 1.827 82 118 154 47 79 111 1.85 3.85 1.823 1.850 1.877 84 120 156 48 80 112 1.90 3.90 1.872 1.900 1.928 85 122 159 48 81 114 1.95 3.95 1.921 1.950 1.979 86 123 160 49 82 115 2.00 4.00 1.970 2.000 2.030 87 125 163 49 83 117 2.05 4.05 2.020 2.050 2.080 88 127 166 50 84 118 2.10 4.10 2.069 2.100 2.131 89 128 167 51 85 119 2.15 4.15 2.118 2.150 2.182 91 130 169 51 86 121 2.20 4.20 2.167 2.200 2.233 91 131 171 52 87 122 2.25 4.25 2.217 2.250 2.283 92 132 172 52 88 124 2.30 4.30 2.266 2.300 2.334 93 134 175 53 89 125 2.35 4.35 2.315 2.350 2.385 94 135 176 54 90 126 2.40 4.40 2.364 2.400 2.436 95 136 177 54 91 128 2.45 4.45 2.414 2.450 2.486 96 138 180 55 92 129 2.50 4.50 2.463 2.500 2.537 97 139 181 55 93 131 2.55 4.55 2.512 2.550 2.588 98 140 182 55 93 131 2.60 4.60 2.561 2.600 2.639 98 141 184 56 94 132 VOUT fosc=4.0MHz fosc=6.0MHz 7/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■ELECTRICAL CHARACTERISTICS (Continued) SPEC Table tON NOMINAL INPUT OUTPUT VOLTAGE VOLTAGE VOUT(T) VIN MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. 2.65 4.65 2.611 2.650 2.689 99 142 185 57 95 133 2.70 4.70 2.660 2.700 2.740 100 144 188 57 96 135 2.75 4.75 2.709 2.750 2.791 101 145 189 57 96 135 2.80 4.80 2.758 2.800 2.842 102 146 190 58 97 136 2.85 4.85 2.808 2.850 2.892 102 147 192 58 98 138 2.90 4.90 2.857 2.900 2.943 103 148 193 59 99 139 2.95 4.95 2.906 2.950 2.994 104 149 194 59 99 139 3.00 5.00 2.955 3.000 3.045 105 150 195 60 100 140 3.05 5.05 3.005 3.050 3.095 105 151 197 60 101 142 3.10 5.10 3.054 3.100 3.146 106 152 198 60 101 142 3.15 5.15 3.103 3.150 3.197 107 153 199 61 102 143 3.20 5.20 3.152 3.200 3.248 107 154 201 61 103 145 3.25 5.25 3.202 3.250 3.298 108 155 202 61 103 145 3.30 5.30 3.251 3.300 3.349 109 156 203 62 104 146 3.35 5.35 3.300 3.350 3.400 109 157 205 62 104 146 3.40 5.40 3.349 3.400 3.451 109 157 205 63 105 147 3.45 5.45 3.399 3.450 3.501 110 158 206 63 106 149 3.50 5.50 3.448 3.500 3.552 111 159 207 63 106 149 3.55 5.50 3.497 3.550 3.603 112 161 210 64 108 152 3.60 5.50 3.546 3.600 3.654 114 164 214 65 109 153 8/31 VOUT fosc=4.0MHz fosc=6.0MHz XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TEST CIRCUITS < Circuit No.① > < Circuit No.② > Wave Form Measure Point Wave Form Measure Point 4.7μF V VIN LX CE VOUT V GND Rpulldown 100Ω L CIN V VIN LX CE VOUT CL GND V 1μF A V RL ※　External Components L : 0.47μH CIN : 4.7μF(ceramic) CL : 4.7μF(ceramic) < Circuit No.④ > < Circuit No.③ > ILeakH A VIN LX CE VOUT ICEH A 2.2μF A Rpulldown 100Ω GND A VIN LX CE VOUT ILeakL GND ICEL < Circuit No.⑤ > A < Circuit No.⑥ > V VIN Wave Form Measure Point LX 2.2μF A VOUT CE V ILx VIN LX CE VOUT 2.2μF ILIM H GND GND 1μF < Circuit No.⑦ > B TYPE VIN 2.2μF LX VOUT CE GND A V 9/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL APPLICATION CIRCUIT L VIN CE VIN LX CE VOUT CIN VOUT CL GND 【Typical Examples】 fosc=4.0MHz MANUFACTURER PRODUCT NUMBER VALUE SIZE(L×W×T) MCEE1005T1R0MHN 1.0uH 1.0×0.5×0.55(mm) MCEE1005TR47MHN 0.47uH 1.0×0.5×0.55(mm) TFM160808ALC-1R0MTAA 1.0uH 1.6×0.8×0.8(mm) DFE18SAN1R0MG0L 1.0μH 1.6×0.8×1.0(mm) DFE18SANR47MG0L 0.47μH 1.6×0.8×1.0(mm) DFE201210U-2R2M 2.2uH 2.0×1.2×1.0(mm) TAIYO YUDEN L TDK murata 【Typical Examples】 fosc=6.0MHz MANUFACTURER TAIYO YUDEN L FDK murata PRODUCT NUMBER VALUE SIZE(L×W×T) MCEE1005TR47MHN 0.47uH 1.0×0.5×0.55(mm) MCEE1005T1R0MHN 1.0uH 1.0×0.5×0.55(mm) MIPSCZ1005DR47T 0.47μH 1.0×0.5×0.75(mm) DFE18SANR47MG0L 0.47μH 1.6×0.8×1.0(mm) DFE18SAN1R0MG0L 1.0μH 1.6×0.8×1.0(mm) 【Typical Examples】(*1) CIN(*2) CL MANUFACTURER PRODUCT NUMBER VALUE SIZE(L×W×T) murata GRM035R60J475ME15 4.7μF/6.3V 0.6×0.3×0.5(mm) TDK C1005X5R0J225M050BC 2.2μF/6.3V 1.0×0.5×0.5(mm) TAIYO YUDEN LMK105BJ225KV 2.2μF/10V 1.0×0.5×0.5(mm) murata GRM035R60J475ME15 4.7μF/6.3V 0.6×0.3×0.5(mm) TDK C1005X5R0J475M050BC 4.7μF/6.3V 1.0×0.5×0.5(mm) Select components appropriate to the usage conditions (ambient temperature, input & output voltage). (*2) Please increase a by-pass capacitor as needed. (*1) 10/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■OPERATIONAL EXPLANATION This IC consists of a reference voltage source, error amplifier, comparator, phase compensation, on time generation circuit, output voltage adjustment resistors, current limiter circuit, UVLO circuit, PWM/PFM selection circuit and so on. R1 VOUT Phase Compensation CFB Error Amp. Current Limit Comparator + - - S + R2 Logic On Time Generator CE Control Logic, UVLO CL Auto-Discharge CE Q R Vref with Soft Start GND VIN Synch. Buffer Driver Lx VIN VOUT PWM/PFM Selector BLOCK DIAGRAM (XC9281/XC9282 Series Type B) The control method is HiSAT-COT (High Speed circuit Architecture for Transient with Constant On Time), which features the On time control method and the fast transient response with low ripple voltage. ＜Nomal operation＞ In HiSAT-COT control, ON time (tON) dependent on input voltage and output voltage is generated and Pch MOS driver Tr. Is turned on. On time is set as follows. IC with 4MHz : tON = (VOUT / VIN) x 250ns IC with 6MHz : tON = (VOUT / VIN) x 167ns The off time (tOFF) is controlled by comparing the output voltage and the reference voltage with the error amplifier and the comparator. Specifically, the reference voltage and a voltage which is obtained by dividing the output voltage with R1 and R2 are compared with using the error amplifier, apply phase compensation to the output of the error amplifier, and send it to the comparator. In the comparator, the output of the error amplifier is compared with the reference voltage, and when it falls below the reference voltage, the SR latch is set and it becomes the ON period again. The XC9281 series (PWM control) operates in continuous conduction mode and operates at a stable oscillation frequency regardless of the load. The oscillation frequency can be obtained by the following equation. fOSC = (VOUT / VIN) x (1 / tON) The XC9282 series (PWM/PFM automatic switching control) lowers the oscillation frequency at light load by operating in discontinuous conduction mode at light load. By this operation, it is possible to reduce switching loss at light load and achieve high efficiency from light load to heavy load. fOSC fOSC tON tON VLX VLX ILX 0V 0V IOUT IOUT 0mA Continuous Conduction Mode waveform ILX 0mA Discontinuous Conduction Mode waveform In the phase compensation circuit, the frequency characteristic of the error amplifier is optimized, and ramp waves which are similar to ripple voltages generated at the output are generated to modulate the output signal of the error amplifier. This enables a stable feedback system to be obtained even when a low ESR capacitor such as a ceramic capacitor is used, and a fast transient response and stabilization of the output voltage are achieved. 11/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■OPERATIONAL EXPLANATION (Continued) ＜100% Duty cycle mode＞ In conditions where the input-output voltage difference is small or transient response, the Pch MOS driver transistor might keep on turning on and the 100% duty cycle mode might be set. The 100% duty cycle mode achieves high output voltage stability and highspeed response even under full load conditions and the condition where the input-output voltage difference is small. ＜CE function＞ When "H" voltage (VCEH) is fed to the CE pin, normal operation starts after raising the output voltage with the soft start function. When the "L" voltage (VCEL) is fed to the CE pin, it enters the standby state and the current consumption is suppressed to 0μA (TYP.). Additionally, Pch MOS driver transistor and Nch MOS driver transistor are turned off. ＜Soft-Start function＞ It is a function to raise the output voltage gradually and suppress inrush current. After the "H" voltage (VCEH) is fed to the CE pin, the reference voltage which is connected to the error amplifier increases linearly during the soft start period. As a result, the output voltage increases in proportion to the increase of the reference voltage. This operation can prevent a large inrush current and smoothly raise the output voltage. tSS VCE VCEH 0V VOUT(T) x 90% VOUT 0V 12/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■OPERATIONAL EXPLANATION(Continued) ＜UVLO function＞ When the VIN voltage becomes 2.0V (TYP.) or less, the UVLO function operates to forcibly turn off the Pch MOS driver transistor to prevent erroneous pulse output due to operation instability of the internal circuit. When the VIN voltage becomes 2.1V (TYP.) or more, the UVLO function is canceled. After the UVLO function is canceled, the output voltage rises with the soft start function, and then the normal operation is performed. Moreover, during the UVLO operation, the internal circuit is operating because stopping by UVLO is not same to a standby mode and just switching operation is stopped. ＜CL Discharge function＞ B type can discharge in a fast manner the output capacitor by internal Nch MOS transistor connected to VOUT pin in order to prevent malfunction of application due to charge remaining in output capacitor during standby. The output voltage during discharging can be calculated by the following equation. V = VOUT (T) × e -t / τ t =τLn (VOUT (T) / V) V : Output voltage during discharge : Output voltage VOUT (T) t : Discharge time : Effective capacitance of Output capacitor CL : CL auto-discharge resistance RDCHG τ : CL×RDCHG Output Voltage Discharge characteristics RDCHG = 145Ω (TYP.), CL=4.7μF VOUT (T) = 1.0V VOUT (T) = 1.8V VOUT (T) = 3.3V 13/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■OPERATIONAL EXPLANATION(Continued) ＜Current Limit＞ The current limit function monitors a current flowing through Pch MOS driver transistor and Nch MOS driver transistor and limits the current. The operation at overcurrent is as follows. 1) When the current flowing through the Pch MOS driver transistor increases and reaches the current limit value ILIMH=1000mA (TYP.), the current limit state is set and the Pch MOS driver transistor is forcibly turned off. 2) The Nch MOS driver transistor turns on after turning off the Pch MOS driver transistor by the current limit function. The Pch MOS driver transistor is prohibited to turn on until the current value flowing through the Nch MOS driver transistor drops to ILIML=800mA (TYP.). 3) Repeat the operations 1) and 2) during the current limit state. 4) When the current limit state is canceled, it automatically returns to normal operation. Curren t Limit State I LIMH ILX I LIML 0A VLX 0V VOUT 0V 14/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■NOTE ON USE 1) For the phenomenon of temporal and transitional voltage decrease or voltage increase, the IC may be damaged or deteriorated if IC is used beyond the absolute MAX. specifications. 2) Spike noise and ripple voltage arise in a switching regulator as with a DC/DC converter. These are greatly influenced by external component selection, such as the coil inductance, capacitance values, and board layout of external components. Once the design has been completed, verification with actual components should be done. 3) The DC/DC converter characteristics depend greatly on the externally connected components as well as on the characteristics of this IC, so refer to the specifications and standard circuit examples of each component when carefully considering which components to select. Be especially careful of the capacitor characteristics and use B characteristics (JIS standard) or X7R, X5R (EIA standard) ceramic capacitors. Duty might not be stable when the capacity is insufficient due to high temperature or low temperature, or derating of CL capacitance happens due to DC bias, etc. Please increase CL as necessary. 4) A feature of HiSAT-COT control is that it controls the off time in order to control the duty, which varies due to the effects of power loss. In addition, changes in the on time due to 100% duty cycle mode are allowed. For this reason, caution must be exercised as the characteristics of the switching frequency will vary depending on the external component characteristics, board layout, input voltage, output voltage, load current and other parameters. 5) Due to propagation delay inside the product, the on time generated by the on time generation circuit is not the same as the on time that is the ratio of the input voltage to the output voltage. 6) With regard to the current limiting value, the actual coil current may at times exceed the electrical characteristics due to propagation delay inside the product. 7) The CE pin is a CMOS input pin. Please do not open it. When it connected to either VIN pin or GND pin, it is recommended to connect a resistor of up to 1MΩ to prevent malfunction of this product and the device connected to the input / output due to short between pins. 8) The XC9282 series would be in a discontinuous conduction mode at light load, but if the inductance value of the coil is smaller than the standard value, the coil current will flow back at the time of light load, pulse skipping will not be possible and the efficiency might be deteriorated. 9) When a coil with poor DC superimposition characteristics is used, it may not be possible to draw a current of Iout=600mA at high temperatures. In this case, either change the coil to one with a large inductance value or use a coil with better DC superimposition characteristics. 10) In the XC9282 series, if the step-down difference is small or large, the output voltage might decrease in the heavy load region. Please use XC9281 series when load stability is important. 15/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■NOTE ON USE (Continued) 11) In the XC9282 series, decrease of the output voltage, as mentioned in the “NOTE ON USE (10)”, can occur periodically in the vicinity of 100% Duty cycle mode switching point in the heavy load region and can increase the ripple voltage. Please use the XC9281 series when you see the output voltage fluctuation as important. (See diagram below.) XC9282B12D (VOUT=1.2V, fOSC=4MHz) Ta=25℃, VIN=2.5V, Iout=500mA L: 1.0μH (MCEE1005T1R0MHN) CIN: 4.7μF (GRM035R60J475ME15) CL: 4.7μF (GRM035R60J475ME15) Lx:5V/div 5μs/div VOUT:50mV/div Lx:5V/div 1μs/div VOUT:50mV/div Fig Unstable operation in heavy load 12) Torex places an importance on improving our products and their reliability. We request that users incorporate fail-safe designs and post-aging protection treatment when using Torex products in their systems. 13) Instructions of pattern layouts (1) If the wiring impedance is high, noise wraparound due to the output current and phase deviation are likely to occur, and the operation might become unstable. Please mount peripheral parts as close to IC as possible. (2) In order to stabilize VIN pin voltage level, we recommend that a by-pass capacitor (CIN) be connected as close as possible to the VIN pin, GND pin. (3) Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit impedance. (4) Fluctuations in the GND potential due to the GND current during switching might cause the IC operation to become unstable. Please strengthen the GND wiring sufficiently. (5) This series’ internal driver transistors bring on heat because of the output current and ON resistance of Pch and Nch MOS driver transistors. Please consider the countermeasures against heat if necessary. 16/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ＜Reference pattern layout＞ WLP-5-06 Layer 1 Layer 2 Layer 3 Layer 4 LGA-6B01 Layer 1 Layer 2 Layer 3 Layer 4 17/31 XC9281/XC9282 Series XC9281/XC9282 Series is Not Recommended for New Designs. ■NOTE ON USE (Continued) 14) Note on mounting (WLP) (1) Mount pad design should be optimized for user's conditions. (2) Sn-AG-Cu is used for the package terminals. If eutectic solder is used, mounting reliability is decreased. Please do not use eutectic solder paste. (3). When underfill agent is used to increase interfacial bonding strength, please take enough evaluation for selection. Some underfill materials and applied conditions may decrease bonding reliability. (4) The IC has exposed surface of silicon material in the top marking face and sides so that it is weak against mechanical damages. Please take care of handling to avoid cracks and breaks. (5) The IC has exposed surface of silicon material in the top marking face and sides. Please use the IC with keeping the circuit open (avoiding short-circuit from the out). (6) Semi-transparent resin is coated on the circuit face of the package. Please be noted that the usage under strong lights may affects device performance. 18/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Efficiency vs. Output Current XC9281B08E/XC9282B08E(V OUT =0.8V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 100 100 70 60 50 40 30 V IN=3.7V 20 80 70 60 50 40 30 1 10 100 V IN=3.7V V IN=3.7V 20 V IN=5.0V 10 0.1 XC9281 XC9282 90 Efficiency: EFFI (%) 80 Efficiency: EFFI (%) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) XC9281 XC9282 90 0 XC9281B08D/XC9282B08D(V OUT =0.8V, f OSC=4MHz) V IN=5.0V V IN=5.0V 10 0 1000 0.1 1 Output Current: IOUT (mA) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 100 70 60 50 40 30 V IN=3.7V 20 V IN=5.0V 10 0 0.1 10 1 XC9281 90 Efficiency: EFFI (%) Efficiency: EFFI (%) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) XC9282 80 XC9282 80 70 60 50 40 30 V IN=3.7V 20 V IN=5.0V 10 100 0 1000 0.1 1 Output Current: IOUT (mA) XC9281B18E/XC9282B18E(V OUT =1.8V, f OSC=6MHz) 90 80 80 70 60 50 V IN=3.7V XC9281 30 XC9282 20 V IN=5.0V 1 10 100 Output Current: IOUT (mA) Efficiency: EFFI (%) Efficiency: EFFI (%) 100 0.1 1000 XC9281B18D/XC9282B18D(V OUT =1.8V, f OSC=4MHz) 90 0 100 L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 100 10 10 Output Current: IOUT (mA) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 40 1000 XC9281B10D/XC9282B10D(V OUT =1.0V, f OSC=4MHz) XC9281 90 100 Output Current: IOUT (mA) XC9281B10E/XC9282B10E(V OUT =1.0V, f OSC=6MHz) 100 10 70 60 50 V IN=3.7V 40 XC9281 30 XC9282 20 V IN=5.0V 10 1000 0 0.1 1 10 100 1000 Output Current: IOUT (mA) 19/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (1) Efficiency vs. Output Current (Continued) XC9281B33E/XC9282B33E(V OUT =3.3V, f OSC=6MHz) XC9281B33D/XC9282B33D(V OUT =3.3V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 100 100 90 90 80 80 Efficiency: EFFI (%) Efficiency: EFFI (%) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 70 60 50 XC9281 40 XC9282 30 20 10 0 1 10 60 50 XC9281 40 XC9282 30 20 10 V IN=5.0V 0.1 70 100 0 1000 V IN=5.0V 0.1 1 Output Current: IOUT (mA) XC9282B18E(V OUT =1.8V, f OSC=6MHz) XC9282B18D(V OUT =1.8V, f OSC=4MHz) 90 90 85 80 75 0.47uH (size:1.6mm×0.8mm) DFE18SANR47MG0L 70 1.0uH (size:1.6mm×0.8mm) DFE18SAN1R0MG0L 65 0.47uH (size:1.0mm×0.5mm) MCEE1005TR47MHN 10 100 Efficiency: EFFI (%) Efficiency: EFFI (%) 95 1 1000 V IN = 3.7V CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 95 0.1 100 Output Current: IOUT (mA) V IN = 3.7V CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 60 10 85 80 75 1.0uH (size:1.6mm×0.8mm) DFE18SAN1R0MG0L 70 0.47uH (size:1.6mm×0.8mm) DFE18SANR47MG0L 65 1.0uH (size:1.0mm×0.5mm) MCEE1005T1R0MHN 60 1000 0.1 Output Current: IOUT (mA) 1 10 100 1000 Output Current: IOUT (mA) (2) Output Voltage vs. Output Current XC9281B12E(V OUT =1.2V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) XC9281B12D(V OUT =1.2V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1.3 1.3 V IN=2.5,3.7,5.5V 1.25 Output Voltage: V OUT (V) Output Voltage: V OUT (V) V IN=2.5,3.7,5.5V 1.2 1.15 1.1 0.1 1 10 100 Output Current: IOUT (mA) 20/31 1000 1.25 1.2 1.15 1.1 0.1 1 10 100 Output Current: IOUT (mA) 1000 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (2) Output Voltage vs. Output Current (Continued) XC9282B12E(V OUT =1.2V, f OSC=6MHz) XC9282B12D(V OUT =1.2V, f OSC=4MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1.32 1.2 V IN=4.2V V IN=5.0V 1.14 V IN=5.5V 1.08 V IN=4.2V V IN=3.7V 1.26 Output Voltage: V OUT (V) Output Voltage: V OUT (V) 1.32 0.1 1 10 V IN=2.5V 100 1.26 1.2 V IN=5.0V V IN=5.5V 1.14 V IN=2.5V 1.08 1000 V IN=3.7V 0.1 Output Current: IOUT (mA) 1.86 1.80 1.74 1.68 0.1 1 V IN=2.5,3.7,5.5V 1.92 Output Voltage: V OUT (V) Output Voltage: V OUT (V) 1000 1.98 V IN=2.5,3.7,5.5V 1.92 10 100 1.86 1.80 1.74 1.68 1.62 1000 0.1 Output Current: IOUT (mA) 1 10 100 1000 Output Current: IOUT (mA) XC9282B18E(V OUT =1.8V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) XC9282B18D(V OUT =1.8V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1.98 1.98 1.92 V IN=3.7V Output Voltage: V OUT (V) Output Voltage: V OUT (V) 100 XC9281B18D(V OUT =1.8V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1.98 1.86 1.80 V IN=5.5V 1.74 1.68 1.62 10 Output Current: IOUT (mA) XC9281B18E(V OUT =1.8V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1.62 1 V IN=2.5V 0.1 1 10 100 Output Current: IOUT (mA) 1000 1.92 V IN=3.7V 1.86 1.80 V IN=5.5V 1.74 V IN=2.5V 1.68 1.62 0.1 1 10 100 1000 Output Current: IOUT (mA) 21/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (2) Output Voltage vs. Output Current (Continued) XC9281B33E(V OUT =3.3V, f OSC=6MHz) XC9281B33D(V OUT =3.3V, f OSC=4MHz) 3.63 3.57 3.51 3.45 3.39 3.33 3.27 3.21 3.15 3.09 3.03 2.97 L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) V IN=5.0,5.5V 0.1 1 Output Voltage: V OUT (V) Output Voltage: V OUT (V) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 10 100 1000 3.63 3.57 3.51 3.45 3.39 3.33 3.27 3.21 3.15 3.09 3.03 2.97 V IN=5.0,5.5V 0.1 Output Current: IOUT (mA) Output Voltage: V OUT (V) Output Voltage: V OUT (V) V IN=5.0V V IN=4.2V 1 10 100 1000 XC9282B33D(V OUT =3.3V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) V IN=5.5V 0.1 10 Output Current: IOUT (mA) XC9282B33E(V OUT =3.3V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 3.63 3.57 3.51 3.45 3.39 3.33 3.27 3.21 3.15 3.09 3.03 2.97 1 100 1000 3.63 3.57 3.51 3.45 3.39 3.33 3.27 3.21 3.15 3.09 3.03 2.97 V IN=5.5V V IN=5.0V V IN=4.2V 0.1 Output Current: IOUT (mA) 1 10 100 1000 Output Current: IOUT (mA) (3) Ripple Voltage vs. Output Current 100 90 80 70 60 50 40 30 20 10 0 XC9281 V IN=3.7V 0 XC9282 1 10 100 Output Current: IOUT (mA) 22/31 XC9281B10D/XC9282B10D(V OUT =1.0V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) Ripple Voltage: Vr(mV) Ripple Voltage: Vr(mV) XC9281B10E/XC9282B10E(V OUT =1.0V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) 1000 100 90 80 70 60 50 40 30 20 10 0 XC9281 V IN=3.7V 0 XC9282 1 10 100 Output Current: IOUT (mA) 1000 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (3) Ripple Voltage vs. Output Current (Continued) XC9281B18E/XC9282B18E(V OUT =1.8V, f OSC=6MHz) XC9281B18D/XC9282B18D(V OUT =1.8V, f OSC=4MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) 100 100 V IN=3.7V 80 90 XC9281 Ripple Voltage: Vr(mV) Ripple Voltage: Vr(mV) 90 XC9282 70 60 50 40 30 20 10 0 60 50 40 30 20 10 0.1 1 10 100 0 1000 0.1 1 10 100 1000 Output Current: IOUT (mA) XC9281B33E/XC9282B33E(V OUT =3.3V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) XC9281B33D/XC9282B33D(V OUT =3.3V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) 100 100 V IN=5.0V 80 XC9281 90 XC9282 80 Ripple Voltage: Vr(mV) 90 Ripple Voltage: Vr(mV) XC9282 70 Output Current: IOUT (mA) 70 60 50 40 30 20 10 XC9281 V IN=5.0V XC9282 70 60 50 40 30 20 10 0 0 0.1 1 10 100 1000 0.1 1 Output Current: IOUT (mA) UVLO Voltage: UVLO (V) V IN=3.6,5.5V 1.850 1.800 1.750 1.700 1.650 1.600 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) 1000 XC9281B18E/XC9281B18D(V OUT =1.8V) 2.000 1.900 100 (5) UVLO Voltage vs. Ambient Temperature XC9281B18E/XC9281B18D(V OUT =1.8V) 1.950 10 Output Current: IOUT (mA) (4) Output Voltage vs. Ambient Temperature Output Voltage: V OUT (V) XC9281 V IN=3.7V 80 100 125 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 UVLO Release Voltage UVLO Detect Voltage -50 -25 0 25 50 75 100 125 Ambient Temperature: Ta (℃) 23/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (6) Quiescent Current vs. Ambient Temperature 1000 900 800 700 600 500 400 300 200 100 0 XC9282B18E/XC9282B18D(V OUT =1.8V) 30.0 V IN=5.0V -50 -25 0 V IN=3.6V 25 Quiescent Current: Iq (μA) Quiescent Current: Iq (μA) XC9281B18E/XC9281B18D(V OUT =1.8V) V IN=2.5V 50 75 100 25.0 15.0 10.0 5.0 0.0 125 V IN=2.5,3.6,5.0V 20.0 -50 Ambient Temperature: Ta (℃) -25 0 25 50 75 100 125 Ambient Temperature: Ta (℃) (7) Stand-by Current vs. Ambient Temperature (8) Oscillation Frequency vs. Output Current XC9282B18E/XC9282B18D(V OUT =1.8V) XC9281B08E(V OUT =0.8V, f OSC=6MHz) 5.0 Oscillation Freqency: f OSC (MHz) Standby Current: IST B (μA) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 4.0 V IN=5.5V 3.0 V IN=3.7V 2.0 V IN=2.5V 1.0 0.0 -50 -25 0 25 50 75 100 125 8.0 7.5 V IN=3.0V 7.0 6.5 6.0 5.5 5.0 VIN=5.0V 4.5 4.0 0 V IN=3.7V V IN=5.0V 6.0 5.5 5.0 V IN=3.0V 4.5 4.0 0 1 10 100 Output Current: IOUT (mA) 24/31 100 1000 XC9281B33E(V OUT =3.3V, f OSC=6MHz) 8.0 6.5 10 L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1000 Oscillation Freqency: f OSC (MHz) Oscillation Freqency: f OSC (MHz) XC9281B18E(V OUT =1.8V, f OSC=6MHz) L = 0.47μH(DFE18SANR47MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 7.0 1 Output Current: IOUT (mA) Ambient Temperature: Ta (℃) 7.5 V IN=3.7V 8.0 7.5 7.0 V IN=5.0,5.5V 6.5 6.0 5.5 5.0 V IN=4.5V 4.5 4.0 0.1 1.0 10.0 100.0 Output Current: IOUT (mA) 1000.0 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (8) Oscillation Frequency vs. Output Current (Continued) XC9281B08D(V OUT =0.8V, f OSC=4MHz) XC9281B18D(V OUT =1.8V, f OSC=4MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) Oscillation Freqency: f OSC (MHz) Oscillation Freqency: f OSC (MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 6.0 5.5 V IN=3.0V 5.0 4.5 4.0 3.5 3.0 V IN=3.7V 2.5 2.0 0 1 10 VIN=5.0V 100 6.0 5.5 5.0 4.0 3.5 V IN=3.7V 3.0 V IN=3.0V 2.5 2.0 1000 V IN=5.0V 4.5 0 1 Output Current: IOUT (mA) 10 100 1000 Output Current: IOUT (mA) (9) Pch Driver ON Resistance vs. Ambient Temperature XC9281B18E0R/XC9281B18D0R(V OUT =1.8V) XC9281B33D(V OUT =3.3V, f OSC=4MHz) 6.0 5.5 5.0 V IN=5.0,5.5V 4.5 4.0 3.5 V IN=4.5V 3.0 2.5 2.0 0.1 1.0 10.0 100.0 1000.0 Lx SW Pch ON Resistance: R LxH (Ω) Oscillation Freqency: f OSC (MHz) L = 1.0μH(DFE18SAN1R0MG0L) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(GRM035R60J475ME15) 1.00 0.80 0.40 0.20 0.00 -50 -25 0.40 0.20 -25 0 25 50 75 Ambient Temperature : Ta (℃) 100 125 LxSW”H” Leakage Current: ILeakH (μA) Lx SW Nch ON Resistance: RLxL (Ω) V IN=5.0V 0.60 -50 50 75 100 125 XC9282B18E/XC9282B18D(V OUT =1.8V) 1.00 0.00 25 (11) LxSW”H” Leakage Current vs. Ambient Temperature XC9281B18E0R/XC9281B18D0R(V OUT =1.8V) V IN=3.6V 0 Ambient Temperature : Ta (℃) (10) Nch Driver ON Resistance vs. Ambient Temperature V IN=2.5V V IN=5.0V 0.60 Output Current: IOUT (mA) 0.80 V IN=3.6V V IN=2.5V 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 V IN=5.5V -50 -25 0 25 50 75 100 125 Ambient Temperature: Ta (℃) 25/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (12) LxSW”L” Leakage Current vs. Ambient Temperature (13) CE”H” Voltage vs. Ambient Temperature 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 XC9282B18E/XC9282B18D(V OUT =1.8V) 1.4 CE”H” Voltage V CEH (V) LxSW”L” Leakage Current: ILeakL (μA) XC9282B18E/XC9282B18D(V OUT =1.8V) V IN=5.5V 1.2 1.0 0.8 0.6 0.2 0.0 -50 -25 0 25 50 75 100 V IN=5.0V V IN=3.6V V IN=2.5V 0.4 125 -50 -25 (14) CE”L” Voltage vs. Ambient Temperature 1.2 Current Limit: ILIMH (mA) CE”L” Voltage V CEL (V) 100 125 1,400 1,200 1.0 0.8 1,000 0.6 0.4 V IN=5.0V V IN=3.6V V IN=2.5V 0.2 -50 -25 0 25 50 75 100 600 125 V IN=5.5V V IN=3.7V V IN=2.5V 800 -50 -25 CL Discharge Resistance: R DCHG (Ω) 500 400 V IN=2.5,3.6,5.0V 300 200 100 0 25 50 75 Ambient Temperature: Ta (℃) 50 75 100 125 XC9282B18E/XC9282B18D(V OUT =1.8V) XC9282B18E/XC9282B18D(V OUT =1.8V) -25 25 (17) CL Discharge Resistance vs. Ambient Temperature (16)Soft-Start Time vs. Ambient Temperature -50 0 Ambient Temperature: Ta (℃) Ambient Temperature: Ta (℃) Soft-Start Time tSS (μs) 75 XC9281B18E/XC9281B18D(V OUT =1.8V) 1.4 26/31 50 (15) Current Limit vs. Ambient Temperature XC9282B18E/XC9282B18D(V OUT =1.8V) 0 25 Ambient Temperature: Ta (℃) Ambient Temperature: Ta (℃) 0.0 0 100 125 600 500 V IN=5.0V V IN=3.6V V IN=2.5V 400 300 200 100 0 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 125 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (18) Load Transient Respones XC9281B10E (V OUT = 1.0V, f OSC = 6MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 0.47μH(MIPSCZ1005DR47T) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) XC9282B10E (V OUT = 1.0V, f OSC = 6MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 0.47μH(MIPSCZ1005DR47T) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) IOUT:300mA IOUT:300mA IOUT:1mA IOUT:1mA VOUT:50mV/div VOUT:50mV/div 200μs/div 200μs/div XC9282B18E (V OUT = 1.8V, f OSC = 6MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 0.47μH(MIPSCZ1005DR47T) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) XC9281B18E (V OUT = 1.8V, f OSC = 6MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 0.47μH(MIPSCZ1005DR47T) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) IOUT:300mA IOUT:300mA IOUT:1mA IOUT:1mA VOUT:50mV/div VOUT:50mV/div 200μs/div XC9281B33E (V OUT = 3.3V, f OSC = 6MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 0.47μH(MIPSCZ1005DR47T) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) 200μs/div XC9282B33E (V OUT = 3.3V, f OSC = 6MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 0.47μH(MIPSCZ1005DR47T) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) IOUT:300mA IOUT:300mA IOUT:1mA IOUT:1mA VOUT:50mV/div VOUT:50mV/div 200μs/div 200μs/div 27/31 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (18) Load Transient Respones(Continued) XC9281B10D (V OUT = 1.0V, f OSC = 4MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 1.0μH(MCEE1005T1R0MHN) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) XC9282B10D (V OUT = 1.0V, f OSC = 4MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 1.0μH(MCEE1005T1R0MHN) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) IOUT:300mA IOUT:300mA IOUT:1mA IOUT:1mA VOUT:50mV/div VOUT:50mV/div 200μs/div 200μs/div XC9282B18D (V OUT = 1.8V, f OSC = 4MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 1.0μH(MCEE1005T1R0MHN) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) XC9281B18D (V OUT = 1.8V, f OSC = 4MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 1.0μH(MCEE1005T1R0MHN) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) IOUT:300mA IOUT:300mA IOUT:1mA IOUT:1mA VOUT:50mV/div VOUT:50mV/div 200μs/div XC9281B33D (V OUT = 3.3V, f OSC = 4MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 1.0μH(MCEE1005T1R0MHN) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) 200μs/div XC9282B33D (V OUT = 3.3V, f OSC = 4MHz) V IN = 5.0V IOUT = 1mA ⇔ 300mA (tr, tf = 5us) L = 1.0μH(MCEE1005T1R0MHN) CIN = 4.7μF(GRM035R60J475ME15) CL = 4.7μF(C1005X5R0J475M050BC) IOUT:300mA IOUT:300mA IOUT:1mA IOUT:1mA VOUT:50mV/div VOUT:50mV/div 200μs/div 28/31 200μs/div XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 Series ■PACKAGING INFORMATION For the latest package information go to, www.torexsemi.com/technical-support/packages PACKAGE OUTLINE / LAND PATTERN THERMAL CHARACTERISTICS LGA-6B01 LGA-6B01 PKG JESD51-7 Board LGA-6B01 Power Dissipation WLP-5-06 WLP-5-06 PKG JESD51-7 Board WLP-5-06 Power Dissipation 29/31 XC9281/XC9282 Series XC9281/XC9282 Series is Not Recommended for New Designs. ■MARKING RULE ●LGA-6B01 / WLP-5-06 ① represents products series MARK PRODUCT SERIESIES 8 9 XC9281******-G XC9282******-G ② represents type, Oscillation Frequency, and the second decimal place of the output voltage Oscillation 品名表記例 MARK Frequency A XC928*A*0E**-G～XC928*A*9E**-G B XC928*B*0E**-G～XC928*B*9E**-G 6.0MHz C XC928*A*AE**-G～XC928*A*ME**-G D XC928*B*AE**-G～XC928*B*ME**-G E XC928*A*0D**-G～XC928*A*9D**-G F XC928*B*0D**-G～XC928*B*9D**-G 4.0MHz H XC928*A*AD**-G～XC928*A*MD**-G K XC928*B*AD**-G～XC928*B*MD**-G ③ represents output voltage MARK OUTPUT VOLTAGE (V) 0 0.7 0.75 1 0.8 0.85 2 0.9 0.95 3 1.0 1.05 4 1.1 1.15 5 1.2 1.25 6 1.3 1.35 7 1.4 1.45 8 1.5 1.55 9 1.6 1.65 A 1.7 1.75 B 1.8 1.85 C 1.9 1.95 D 2.0 2.05 E 2.1 2.15 F 2.2 2.25 H 2.3 2.35 K 2.4 2.45 L 2.5 2.55 M 2.6 2.65 N 2.7 2.75 P 2.8 2.85 R 2.9 2.95 S 3.0 3.05 T 3.1 3.15 U 3.2 3.25 V 3.3 3.35 X 3.4 3.45 Y 3.5 3.55 Z 3.6 - PRODUCT SERIESIES XC928**07/0K***-G XC928**08/0L***-G XC928**09/0M***-G XC928**10/1A***-G XC928**11/1B***-G XC928**12/1C***-G XC928**13/1D***-G XC928**14/1E***-G XC928**15/1F***-G XC928**16/1H***-G XC928**17/1K***-G XC928**18/1L***-G XC928**19/1M***-G XC928**20/2A***-G XC928**21/2B***-G XC928**22/2C***-G XC928**23/2D***-G XC928**24/2E***-G XC928**25/2F***-G XC928**26/2H***-G XC928**27/2K***-G XC928**28/2L***-G XC928**29/2M***-G XC928**30/3A***-G XC928**31/3B***-G XC928**32/3C***-G XC928**33/3D***-G XC928**34/3E***-G XC928**35/3F***-G XC928**36E**-G ④⑤ represents production lot number 01～09, 0A～0Z, 11～9Z, A1～A9, AA～AZ, B1～ZZ in order. (G, I, J, O, Q, W excluded) * No character inversion used. 30/31 LGA-6B01 WLP-5-06 XC9281/XC9282 Series is Not Recommended for New Designs. XC9281/XC9282 1. The product and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this datasheet is up to date. 2. The information in this datasheet is intended to illustrate the operation and characteristics of our products. We neither make warranties or representations with respect to the accuracy or completeness of the information contained in this datasheet nor grant any license to any intellectual property rights of ours or any third party concerning with the information in this datasheet. 3. Applicable export control laws and regulations should be complied and the procedures required by such laws and regulations should also be followed, when the product or any information contained in this datasheet is exported. 4. The product is neither intended nor warranted for use in equipment of systems which require extremely high levels of quality and/or reliability and/or a malfunction or failure which may cause loss of human life, bodily injury, serious property damage including but not limited to devices or equipment used in 1) nuclear facilities, 2) aerospace industry, 3) medical facilities, 4) automobile industry and other transportation industry and 5) safety devices and safety equipment to control combustions and explosions. Do not use the product for the above use unless agreed by us in writing in advance. 5. Although we make continuous efforts to improve the quality and reliability of our products; nevertheless Semiconductors are likely to fail with a certain probability. So in order to prevent personal injury and/or property damage resulting from such failure, customers are required to incorporate adequate safety measures in their designs, such as system fail safes, redundancy and fire prevention features. 6. Our products are not designed to be Radiation-resistant. 7. Please use the product listed in this datasheet within the specified ranges. 8. We assume no responsibility for damage or loss due to abnormal use. 9. All rights reserved. No part of this datasheet may be copied or reproduced unless agreed by Torex Semiconductor Ltd in writing in advance. Series TOREX SEMICONDUCTOR LTD. 31/31