XCL214B103DR

XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ETR28005-006 HiSAT-COT ® Control 1.5A Inductor Built-in Step-Down “micro DC/DC” Converters ☆GreenOperationCompatible ■GENERAL DESCRIPTION The XCL213/XCL214 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in one tiny package (2.5mm×3.2mm, h=1.0mm). An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring. A wide operating voltage range of 2.7V to 5.5V enables support for applications that require an internally fixed output voltage (0.8V to 3.6V). The XCL213/XCL214 series uses synchronous rectification at an operating frequency of 3.0MHz. The XCL213/XCL214 series uses HiSAT-COT (*) synchronous rectification. HiSAT-COT+PWM control (XCL213) or HiSAT-COT+automatic PWM/PFM switching control (XCL214) can be selected. The series have a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel driver transistor is forced OFF when input voltage becomes 2.0V or lower. When CE=”L”, the integrated CL discharge function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge switch located between the LX and VSS pins. The power consumption will be less than 1.0μA. 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 Input Voltage Output Voltage Oscillation Frequency Output Current Efficiency Control Methods ●Note Book PC ●Tablet PC ●SSD ●Mobile phone ●Projector ●Printer Circuit Protection Functions Output Capacitor : 2.7V ~ 5.5V : 0.8V ~ 3.6V : 3.0MHz : 1.5A : 92% (VIN=5.0V, VOUT=3.3V/500mA) : HiSAT-COT 100% Duty Cycle HiSAT-COT+PWM (XCL213) HiSAT-COT+PWM/PFM (XCL214) : Thermal Shut Down Current Limit Circuit (Drop) Short Circuit Protection (Latch) : Soft-start Circuit Built-in UVLO CL Discharge : Low ESR Ceramic Capacitor Operating Ambient Temperature : -40℃~ 105℃ Package : USP-9B01 Environmental Friendly : EU RoHS Compliant, Pb Free ■TYPICAL APPLICATION CIRCUIT ■ TYPICAL PERFORMANCE CHARACTERISTICS XCL213/XCL214 (VOUT=3.3V) 100 XCL214 VOUT CL 80 Lx L2 VIN VOUT CE AGND PGND VIN CIN Efficiency : EFFI (%) L1 60 40 XCL213 20 V IN=5.0V 0 0.1 1 10 100 1000 Output Current : IOUT (mA) 10000 1/17 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■BLOCK DIAGRAM Inductor L1 L2 Short Protection VOUT R1 CFB High Side Current Limit Phase Compensation R2 Error Amp. VIN Comparator AGND S R Vref with Soft Start CE Control Logic, UVLO Thermal Shutdown CE Synch Buffer Drive Logic Q Minimum On Time Generator Lx VIN PGND VOUT PWM/PFM Selector * The XCL213 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally. The XCL214 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM automatic switching” internally. Diodes inside the circuit are an ESD protection diode and a parasitic diode. ■PRODUCT CLASSIFICATION ●Ordering Information XCL213①②③④⑤⑥ : PWM control XCL214①②③④⑤⑥ : PWM/PFM Automatic switching control DESIGNATOR ITEM SYMBOL B E Type ① DESCRIPTION Refer to Selection Guide Output Voltage options e.g.)1.2V → ②=1, ③=2 1.25V → ②=1, ③=C ②③ Output Voltage 08 ~ 36 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 (*1) ④ Oscillation Frequency 3 ⑤⑥ Package (Order Unit) DR 3.0MHz USP-9B01 (*1) (3,000pcs/Reel) The XCL213/XCL214 reels are shipped in a moisture-proof packing. ●Selection Guide TYPE OUTPUTT VOLTAGE CL AUTODISCHARGE LATCH or SHORT PROTECTION UVLO CHIP ENABLE CURRENT LIMIT SOFTSTART Typ. THERMAL SHUTDOWN B Fixed Yes Yes Yes Yes Yes 0.3ms Yes E Fixed Yes Yes Yes Yes Yes 0.4ms Yes 2/16 XCL213/XCL214 XCL213/XCL214 Series is Not Recommended for New Designs. Series ■PIN CONFIGURATION CE 6 1 VIN 2 NC 3 Lx 7 PGND AGND 5 VOUT 4 9 L2 8 L1 BOTTOM VIEW ■PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTIONS 1 2 3 4 5 6 7 8 9 VIN NC Lx VOUT AGND CE PGND L1 L2 Power Input No Connection Switching Output Fixed Output Voltage PIN Analog Ground Chip Enable Power Ground Inductor Electrodes Inductor Electrodes * This 2-pin NC terminal is not connected to an IC chip. ■FUNCTION TABLE CE PIN Function PIN NAME SIGNAL STATUS 1 Low Stand-by 2 High Active * Please do not leave the CE pin open. ■ABSOLUTE MAXIMUM RATINGS Ta=25℃ PARAMETER SYMBOL RATINGS VIN Pin Voltage VIN -0.3 ~ 6.2 UNITS V 6.2(*1) LX Pin Voltage VLx -0.3 ~ VIN + 0.3 or VOUT Pin Voltage Vout -0.3 ~ VIN + 0.3 or 4.0 CE Pin Voltage VCE V V (*2) -0.3 ~ 6.2 1200(40mm x 40mm Standard board V ) (*3) Power Dissipation Pd Operating Ambient Temperature Topr -40 ~ 105 mW ℃ Storage Temperature Tstg -55 ~ 125 ℃ All voltages are described based on the GND (AGND and PGND) pin. (*1) The maximum value should be either VIN+0.3V or +6.2V in the lowest voltage (*2) The maximum value should be either VIN+0.3V or +4.0V in the lowest voltage (*3) The power dissipation figure shown is PCB mounted and is for reference only. Please refer to PACKAGING INFORMATION for the mounting condition. 3/17 XCL213/XCL214 Series XCL213/XCL214 Series is Not Recommended for New Designs. ■ELECTRICAL CHARACTERISTICS Ta=25℃ ●XCL213Bxx3DR/XCL214Bxx3DR PARAMETER SYMBOL CONDITIONS When connected to external components, IOUT =30mA MIN. TYP. MAX. UNITS CIRCUIT V ① 2.7 - 5.5 V ① Output Voltage VOUT Operating Voltage Range VIN Maximum Output Current IOUTMAX When connected to external components, VIN = 1500 - - mA ① UVLO Voltage (*2) VUVLO Vout=0.6V, Voltage which Lx pin holding ”L” level (*6) 1.35 2.00 2.68 V ③ Quiescent Current (XCL214) Iq VOUT =VOUT(E) ×1.1 - 25 40 μA ② Quiescent Current (XCL213) Iq VOUT =VOUT(E) ×1.1 - 400 825 μA ② Stand-by Current ISTB VCE =0V - 0.0 1.0 μA ② Minimum ON time (*2) tONmin ns ① Thermal Shutdown TTSD - 150 - ℃ ① Thermal shutdown Hysteresis THYS - 30 - ℃ ① LxSW ”H” ON Resistance RLXH VOUT=0.6V, ILX=100mA (*3) - 0.14 0.28 Ω ④ LxSW ”L” ON Resistance (*4) RLXL VOUT=VOUT(T) × 1.1, ILX=100mA (*3) - 0.10 0.20 Ω ④ LxSW ”H” Leakage Current ILeakH VIN=5.5V, VCE=0V, VOUT=0V, VLX=5.5V - 0.0 30.0 μA ⑤ LxSW ”L” Leakage Current ILeakL VIN=5.5V, VCE=0V, VOUT=0V, VLX=0V - 0.0 1.0 μA ⑤ Current Limit (*5) ILIMH VOUT=0.6V, ILx until Lx pin oscillates 2.5 3.0 4.5 A ⑥ Output Voltage Temperature Characteristics ΔVOUT/ (VOUT・Δtopr) - ±100 - ppm/℃ ① CE”H” Voltage VCEH VOUT=0.6V, Applied voltage to VCE, Voltage changes Lx to “H” level (*6) 1.4 - 5.5 V ③ CE”L” Voltage VCEL VOUT =0.6V, Applied voltage to VCE, Voltage changes Lx to “L” level (*6) AGND - 0.3 V ③ CE”H” Current ICEH VIN=5.5V, VCE=5.5V, VOUT=0V -0.1 - 0.1 μA ⑤ CE”L” Current ICEL VIN=5.5V, VCE=0V, VOUT=0V -0.1 - 0.1 μA ⑤ 0.10 0.30 0.50 ms ③ 0.17 0.27 0.37 V ③ 50 - 210 0.5 300 - Ω μH ⑦ - 1.8 - A - Soft-start Time Short Protection Threshold Voltage tSS VSHORT CL Discharge Inductance RDCHG L Inductor Rated Current IDC When connected to external components, VIN =VCE=, IOUT=1mA IOUT=30mA -40℃≦Topr≦105℃ VCE=0V→5.0V, VOUT=VOUT(T) × 0.9 After "H" is fed to CE, the time by when clocks are generated at Lx pin. Sweeping VOUT, VOUT voltage which Lx becomes “L” level (*6) VCE=0V, VOUT=4.0V Test Freq.=1MHz ΔT=+40deg Unless otherwise stated, VIN=5.0V, VCE=5.0V, VOUT(T)=Nominal Voltage NOTE: (*1) When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep P-ch 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 P-ch driver ON resistance. (*2) Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage. (*3) RLXH=(VIN - Lx pin measurement voltage) / 100mA, RLXL=Lx pin measurement voltage / 100mA (*4) Design value for the XCL214 series (*5) Current limit denotes the level of detection at peak of coil current. (*6) "H"=VIN～VIN - 1.2V, "L"=- 0.1V～+ 0.1V 4/16 - XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■ELECTRICAL CHARACTERISTICS Ta=25℃ ●XCL213Exx3DR/XCL214Exx3DR PARAMETER SYMBOL CONDITIONS When connected to external components, IOUT =30mA MIN. TYP. MAX. UNITS CIRCUIT V ① 2.7 - 5.5 V ① Output Voltage VOUT Operating Voltage Range VIN Maximum Output Current IOUTMAX When connected to external components, VIN = 1500 - - mA ① UVLO Voltage (*2) VUVLO Vout=0.6V, Voltage which Lx pin holding ”L” level (*6) 1.35 2.00 2.68 V ③ Quiescent Current (XCL214) Iq VOUT =VOUT(E) ×1.1 - 25 40 μA ② Quiescent Current (XCL213) Iq VOUT =VOUT(E) ×1.1 - 400 825 μA ② Stand-by Current ISTB VCE =0V - 0.0 1.0 μA ② Minimum ON time (*2) tONmin ns ① Thermal Shutdown TTSD - 150 - ℃ ① Thermal shutdown Hysteresis THYS - 30 - ℃ ① LxSW ”H” ON Resistance RLXH VOUT=0.6V, ILX=100mA (*3) - 0.14 0.28 Ω ④ LxSW ”L” ON Resistance (*4) RLXL VOUT=VOUT(T) × 1.1 V, ILX=100mA (*3) - 0.10 0.20 Ω ④ LxSW ”H” Leakage Current ILeakH VIN=5.5V, VCE=0V, VOUT=0V, VLX=5.5V - 0.0 30.0 μA ⑤ LxSW ”L” Leakage Current ILeakL VIN=5.5V, VCE=0V, VOUT=0V, VLX=0V - 0.0 1.0 μA ⑤ Current Limit (*5) ILIMH VOUT=0.6V, ILx until Lx pin oscillates 2.5 3.0 4.5 A ⑥ Output Voltage Temperature Characteristics ΔVOUT/ (VOUT・Δtopr) - ±100 - ppm/℃ ① CE”H” Voltage VCEH VOUT=0.6V, Applied voltage to VCE, Voltage changes Lx to “H” level (*6) 1.4 - 5.5 V ③ CE”L” Voltage VCEL VOUT=0.6V, Applied voltage to VCE, Voltage changes Lx to “L” level (*6) AGND - 0.3 V ③ CE”H” Current ICEH VIN=5.5V, VCE=5.5V, VOUT=0V -0.1 - 0.1 μA ⑤ CE”L” Current ICEL VIN=5.5V, VCE=0V, VOUT=0V -0.1 - 0.1 μA ⑤ 0.20 0.40 0.90 ms ③ 0.17 0.27 0.37 V ③ 50 - 210 0.5 300 - Ω μH ⑦ - 1.8 - A - Soft-start Time Short Protection Threshold Voltage tSS VSHORT CL Discharge Inductance RDCHG L Inductor Rated Current IDC When connected to external components, VIN =VCE=, IOUT=1mA IOUT=30mA -40℃≦Topr≦105℃ VCE=0V→5.0V, VOUT=VOUT(T) × 0.9 After "H" is fed to CE, the time by when clocks are generated at Lx pin. Sweeping VOUT, VOUT voltage which Lx becomes “L” level (*6) VCE=0V, VOUT=4.0V Test Freq.=1MHz ΔT=+40deg - Unless otherwise stated, VIN=5.0V, VCE=5.0V, VOUT(T)=Nominal Voltage NOTE: (*1) When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep P-ch 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 P-ch driver ON resistance. (*2) Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage. (*3) RLXH=(VIN - Lx pin measurement voltage) / 100mA, RLXL=Lx pin measurement voltage / 100mA (*4) Design value for the XCL214 series (*5) Current limit denotes the level of detection at peak of coil current. (*6) "H"=VIN～VIN - 1.2V, "L"=- 0.1V～+ 0.1V 5/17 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■ELECTRICAL CHARACTERISTICS ●SPEC Table (VOUT, tONmin) NOMINAL OUTPUT VOLTAGE VOUT VOUT(T) MIN. TYP. MAX. VIN 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 0.784 0.833 0.882 0.931 0.980 1.029 1.078 1.127 1.176 1.225 1.274 1.323 1.372 1.421 1.470 1.519 1.568 1.617 1.666 1.715 1.764 1.813 1.862 1.911 1.960 2.009 2.058 2.107 2.156 0.800 0.850 0.900 0.950 1.000 1.050 1.100 1.150 1.200 1.250 1.300 1.350 1.400 1.450 1.500 1.550 1.600 1.650 1.700 1.750 1.800 1.850 1.900 1.950 2.000 2.050 2.100 2.150 2.200 0.816 0.867 0.918 0.969 1.020 1.071 1.122 1.173 1.224 1.275 1.326 1.377 1.428 1.479 1.530 1.581 1.632 1.683 1.734 1.785 1.836 1.887 1.938 1.989 2.040 2.091 2.142 2.193 2.244 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.75 2.83 2.92 3.00 3.08 3.17 3.25 3.33 3.42 3.50 3.58 3.67 tONmin fOSC=3.0MHz MIN. TYP. MAX. 71 72 73 74 86 91 95 99 104 108 112 117 121 125 130 134 138 140 140 140 140 140 140 140 140 140 140 140 140 119 121 122 123 123 130 136 142 148 154 160 167 173 179 185 191 198 200 200 200 200 200 200 200 200 200 200 200 200 166 169 171 172 160 169 177 185 193 201 209 217 225 233 241 249 257 260 260 260 260 260 260 260 260 260 260 260 260 NOMINAL OUTPUT VOLTAGE VOUT VOUT(T) MIN. TYP. MAX. VIN 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 2.205 2.254 2.303 2.352 2.401 2.450 2.499 2.548 2.597 2.646 2.695 2.744 2.793 2.842 2.891 2.940 2.989 3.038 3.087 3.136 3.185 3.234 3.283 3.332 3.381 3.430 3.479 3.528 2.250 2.300 2.350 2.400 2.450 2.500 2.550 2.600 2.650 2.700 2.750 2.800 2.850 2.900 2.950 3.000 3.050 3.100 3.150 3.200 3.250 3.300 3.350 3.400 3.450 3.500 3.550 3.600 2.295 2.346 2.397 2.448 2.499 2.550 2.601 2.652 2.703 2.754 2.805 2.856 2.907 2.958 3.009 3.060 3.111 3.162 3.213 3.264 3.315 3.366 3.417 3.468 3.519 3.570 3.621 3.672 3.75 3.83 3.92 4.00 4.08 4.17 4.25 4.33 4.42 4.50 4.58 4.67 4.75 4.83 4.92 5.00 5.08 5.17 5.25 5.33 5.42 5.50 5.50 5.50 5.50 5.50 5.50 5.50 tONmin fOSC=3.0MHz MIN. TYP. MAX. 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 142 144 146 148 151 153 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 203 206 209 212 215 218 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 260 264 268 272 276 280 284 ■TYPICAL CIRCUIT L1 VOUT CL L2 VOUT AGND VALUE Lx VIN CE CIN PGND NOTE: The integrated Inductor can be used only for this DC/DC converter. Please do not use this inductor for other reasons. PRODUCT NUMBER LMK107BBJ106MALT(TaiyoYuden) (*1) VIN CIN CL 10V/10μF (*3) LMK212ABJ106KG-T(TaiyoYuden) (*1) LMK212AB7106MG-T(TaiyoYuden) (*2) C1608JB1A106K (TDK) (*1) C2012JB1A106K (TDK) (*1) C2012X5R1A106K (TDK) (*1) C2012X7R1A106M (TDK) (*2) NOTE: *1: Max. Temp. for the cap. is +85℃ . *2: Max. Temp. for the cap. is +125℃. *3: Use CL = 20uF or more when VIN-VOUT (T) < Circuit No.② > Wave Form Measure Point L RL V CL L2 L1 L2 L1 VOUT Lx VOUT Lx AGND VIN CE PGND A AGND CIN VIN CE PGND A 1μF ※External Components 　L：1.0μH(Selected goods) 　CIN,CL:10μF(Ceramic) < Circuit No.③ > < Circuit No.④ > Wave Form Measure Point L2 L1 L2 L1 VOUT Lx VOUT Lx AGND VIN AGND VIN CE PGND 1μF RPulldown 　200Ω CE 1μF V ILX PGND RLXH=(VIN-VL)/ILX RLXL=VLX/ILX < Circuit No.⑥ > < Circuit No.⑤ > Wave Form Measure Point L2 L1 L2 L1 VOUT Lx AGND VIN ILeakH VOUT Lx A ILeakL AGND VIN ICEH A CE PGND L2 L1 VOUT Lx AGND VIN 1μF CE 1μF ILIMH V PGND ICEL < Circuit No.⑦ > A 1μF CE PGND 7/17 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■OPERATIONAL EXPLANATION The XCL213/XCL214 series consists of a reference voltage source, error amplifier, comparator, phase compensation, minimum on time generation circuit, output voltage adjustment resistors, P-channel MOS driver transistor, N-channel MOS switching transistor for the synchronous switch, current limiter circuit, UVLO circuit, thermal shutdown circuit, short protection circuit, PWM/PFM selection circuit and others. (See the BLOCK DIAGRAM below.) Inductor L1 L2 Short Protection VOUT R1 CFB High Side Current Limit Phase Compensation R2 Error Amp. Comparator AGND S Logic Q Vref with Soft Start CE VIN CE Control Logic, UVLO Thermal Shutdown R Minimum On Time Generator Synch Buffer Drive VIN Lx PGND VOUT PWM/PFM Selector The method is HiSAT-COT (High Speed circuit Architecture for Transient with Constant On Time) control, which features on time control method and a fast transient response that also achieves low output voltage ripple. The on time (ton) is determined by the input voltage and output voltage, and turns on the Pch MOS driver Tr. for a fixed time. During the off time (toff), the voltage that is fed back through R1 and R2 is compared to the reference voltage by the error amp, and the error amp output is phase compensated and sent to the comparator. The comparator compares this signal to the reference voltage, and if the signal is lower than the reference voltage, sets the SR latch. On time then resumes. By doing this, PWM operation takes place with the off time controlled to the optimum duty ratio and the output voltage is stabilized. The phase compensation circuit optimizes the frequency characteristics of the error amp, and generates a ramp wave similar to the ripple voltage that occurs in the output to modulate the output signal of the error amp. 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. Generates an on time that depends on the input voltage and output voltage (ton). The on time is set as given by the equations below. ton (μs)=VOUT/VIN×0.333 The switching frequency can be obtained from the on time (ton), which is determined by the input voltage and output voltage, as given by the equation below. fOSC (MHz)=VOUT / (VIN×ton(μs)) When the load current is heavy and the voltage difference between input voltage and output voltage is small, 100% duty cycle mode is activated and it keeps the Pch MOS driver Tr. turning on. 100% duty cycle mode attains a high output voltage stability and a high-speed response under all load conditions, from light to heavy, even in conditions where the dropout voltage is low. The error amp monitors the output voltage. The voltage divided by the internal R1 and R2 resistors is a feedback voltage for Error Amp. and compared to the reference voltage. The output voltage of the error amp becomes higher when the feedback voltage is higher than the reference voltage. The frequency characteristics of the error amp are optimized internally. 8/16 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■OPERATIONAL EXPLANATION (Continued) The current limiter circuit of the XCL213/XCL214 series monitors the current flowing through the P-channel MOS driver transistor connected to the Lx pin. When the driver current is greater than a specific level, the current limit function operates to turn off the pulses from the Lx pin at any given timing. When the over current state is eliminated, the IC resumes its normal operation. The reference voltage forms a reference that is used to stabilize the output voltage of the IC. After chip enable of the IC, the reference voltage connected to the error amp increases linearly during the soft-start interval. This allows the voltage divided by the internal R1 and R2 resistors and the reference voltage to be controlled in a balanced manner, and the output voltage rises in proportion to the rise in the reference voltage. This operation prevents rush input current and enables the output voltage to rise smoothly. If the output voltage does not reach the set output voltage within the soft start time, such as when the load is heavy or a large capacity output capacitor is connected, the balancing of the voltage divided by the internal resistors R1 and R2 and the reference voltage is lost, however, the current restriction function activates to prevent an excessive increase of input current, enabling a smooth rise of the output voltage. PWM control is a continuous conduction mode, and operates at a stable switching frequency by means of an on time (ton) that is determined by the input voltage and output voltage regardless of the load. PWM/PFM auto switching control is a discontinuous conduction mode at light loads, and lowers the switching frequency to reduce switching loss and improve efficiency. The XCL213 series is internally fixed to PWM control. The XCL214 series is internally fixed to PWM/PFM auto switching control. Operation starts when “H” voltage is input into the CE pin. The IC can be put in the shutdown state by inputting “L” voltage into the CE pin. In the shutdown state, the supply current of the IC is 0μA (TYP.), and the Pch MOS driver Tr. and Nch MOS switch Tr. for synchronous rectification turn off. The CE pin is a CMOS input and the sink current is 0μA. When the VIN voltage becomes 2.00V (TYP.) or lower, the P-ch MOS driver transistor output driver transistor is forced OFF to prevent false pulse output caused by unstable operation of the internal circuitry. When the VIN pin voltage becomes 2.10V (TYP.) or higher, switching operation takes place. By releasing the UVLO function, the IC performs the soft start function to initiate output startup operation. The UVLO circuit does not cause a complete shutdown of the IC, but causes pulse output to be suspended; therefore, the internal circuitry remains in operation. For protection against heat damage of the ICs, thermal shutdown function monitors chip temperature. The thermal shutdown circuit starts operating and the P-ch MOS driver and N-ch MOS driver transistor will be turned off when the chip’s temperature reaches 150℃. When the temperature drops to 120℃ (TYP.) or less after shutting of the current flow, the IC performs the softstart function to initiate output startup operation. The short-circuit protection circuit protects the device that is connected to this product and to the input/output in situations such as when the output is accidentally shorted to GND. The short-circuit protection circuit monitors the output voltage, and when the output voltage falls below the short-circuit protection threshold voltage, it turns off the Pch MOS driver Tr and latches it. Once in the latched state, operation is resumed by turning off the IC from the CE pin and then restarting, or by reinput into the VIN pin. 9/17 XCL213/XCL214 Series XCL213/XCL214 Series is Not Recommended for New Designs. ■OPERATIONAL EXPLANATION (Continued) The product can quickly discharge the electric charge at the output capacitor (CL) when a low signal to the CE pin which enables a whole IC circuit put into OFF state, is inputted via the N-ch MOS switch transistor located between the VOUT pin and the GND pin. When the IC is disabled, electric charge at the output capacitor (CL) is quickly discharged so that it may avoid application malfunction. Output Voltage Discharge characteristics V : Output voltage after discharge VOUT(T) : Output voltage t : Discharge time τ: CL×RDCHG CL : Capacitance of Output capacitor RDCHG : CL auto-discharge resistance, but it depends on supply voltage. RDCHG=210Ω (TYP.) CL=10μF 5.0 4.5 Output Voltage: VOUT(V) V=VOUT(T) × e - t / τ t =τLn (VOUT(T) / V) Vout=1.2V 4.0 Vout=1.8V 3.5 Vout=3.3V 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 2 4 6 8 10 12 14 16 18 20 Discharge Time: t(ms) ■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. 4. Sufficiently reinforce the ground wiring. In particular, reinforce near the PGND and AGND pin as fluctuations of the ground phase due to the ground current during switching may cause the operation of the IC to become unstable. 5. Mount external components as close as possible to the IC. Keep the wiring short and thick to lower the wiring impedance. 6. 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 between the input (VIN pin) and output (VOUT pin) due to the load, and thus the switching frequency fluctuates. 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. 7. Due to propagation delay inside the product, the on time generated by the minimum on time generation circuit may not be the same as the on time that is the ratio of the input voltage to the output voltage. 8. 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. 9. The CE pin is a CMOS input pin. Do not use with the pin open. If connecting to the input or ground, use a resistor up to 1MΩ. To prevent malfunctioning of the device connected to this product or the input/output due to short circuiting between pins, it is recommended that a resistor be connected. 10. If the output voltage drops below the short circuit protection threshold voltage at the end of the soft start interval, operation will stop. 11. PWM/PFM auto switching control is a discontinuous conduction mode when the load is light, and in cases where the voltage difference between input and output is low or the coil inductance is higher than the value indicated in the standard circuit example, the coil current may reverse when the load is light, and thus pulse skipping will not be possible and light load efficiency will worsen. 10/16 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■NOTE ON USE (Continued) 12. When the voltage difference between input voltage and output voltage is low, the load stability feature may deteriorate. 13. 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. 14. The proper position of mounting is based on the coil terminal 15. Instructions of pattern layouts The operation may become unstable due to noise and/or phase lag from the output current when the wire impedance is high,please place the input capacitor(CIN) and the output capacitor (CL) as close to the IC as possible. (1) In order to stabilize VIN voltage level, we recommend that a by-pass capacitor (CIN) is connected as close as possible to the VIN pin, PGND pin and AGND pin. (2) Please mount each external component as close to the IC as possible. (3) Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit impedance. (4) Make sure that the GND traces are as thick as possible, as variations in ground potential caused by high ground currents at the time of switching may result in instability of the IC. (5) This series’ internal driver transistors bring on heat because of the output current and ON resistance of P-channel and Nchannel MOS driver transistors. Please consider the countermeasures against heat if necessary. (6) In the following reference pattern layout drawing, the 2-pin NC terminal is open, but it is not connected to the IC chip.Therefore, there is no problem with connecting it to a 1-pin (VIN) or 2-pin (Lx). CIN2: Optional 11/17 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Output Voltage vs. Output Current XCL213/XCL214, VOUT=1.8V V IN=5.0V XCL213 Output Voltage : V Output Voltage : V XCL213 V IN=3.3V,5.0V (V) 1.9 XCL213/XCL214, VOUT=3.3V 3.5 3.4 XCL214 OUT XCL214 V IN=3.3V,5.0V OUT (V) 2.0 1.8 1.7 1.6 3.3 3.2 3.1 0.1 1 10 100 1000 Output Current : IOUT (mA) 10000 0.1 1 10 100 1000 Output Current : IOUT (mA) 10000 (2) Efficiency vs. Output Current XCL213/XCL214, VOUT=1.8V 100 XCL213/XCL214, VOUT=3.3V 100 XCL214 XCL214 80 60 40 Efficiency : EFFI (%) Efficiency : EFFI (%) 80 5.0V V IN=3.3V XCL213 60 40 20 20 0 0 0.1 1 10 100 1000 Output Current : IOUT (mA) 10000 XCL213 V IN=5.0V 0.1 1 10 100 1000 Output Current : IOUT (mA) 10000 (3) Ripple Voltage vs. Output Current XCL213/XCL214, VOUT=1.8V 100 60 XCL213 V IN=3.3V,5.0V 40 20 60 XCL213 XCL214 40 20 0 0.1 1 10 100 1000 Output Current : IOUT (mA) 12/16 V IN=5.0V 80 XCL214 V IN=3.3V,5.0V Ripple Voltage : (mV) Ripple Voltage : (mV) 80 XCL213/XCL214, VOUT=3.3V 100 10000 0 0.1 1 10 100 1000 Output Current : IOUT (mA) 10000 XCL213/XCL214 XCL213/XCL214 Series is Not Recommended for New Designs. Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (4) Output Voltage vs. Ambient Temperature XCL213/XCL214,VOUT=1.8V 3.5 Vin=5.0V,Iout=1.0A Vin=5.0V,Iout=1.5A Vin=3.3V,Iout=1.0A Vin=3.3V,Iout=1.5A 1.9 Output Voltage : V OUT (V) Output Voltage : V OUT (V) 2.0 XCL213/XCL214,VOUT=3.3V 1.8 1.7 1.6 -50 -25 0 25 50 75 100 3.4 3.3 3.2 3.1 125 Vin=5.0V,Iout=1.0A Vin=5.0V,Iout=1.5A Vin=4.2V,Iout=1.0A Vin=4.2V,Iout=1.5A -50 -25 Ambient Temperature : Ta (℃) 0 25 50 75 100 125 Ambient Temperature : Ta (℃) (5) Oscillation Frequency vs. Ambient Temperature XCL213B333DR(VOUT=3.3V） XCL213B183DR(VOUT=1.8V) 3.3 Vin=5.0V Vin=3.3V 3.2 Oscillation Frequency : fosc (MHz) Oscillation Frequency : fosc (MHz) 3.3 3.1 3.0 2.9 2.8 IOUT=300mA 2.7 -50 -25 0 25 50 75 100 Vin=4.2V 3.2 3.1 3.0 2.9 2.8 2.7 125 Vin=5.0V IOUT=300mA -50 Ambient Temperature: Ta (℃) -25 0 25 50 75 100 125 Ambient Temperature: Ta (℃) (6) Oscillation Frequency vs. Input Voltage XCL213B333DR(VOUT=3.3V） XCL213B183DR(VOUT=1.8V) 4.0 Ta=-40℃ Ta=25℃ Ta=85℃ Ta=105℃ 3.5 3.0 2.5 IOUT=300mA 2.0 2.5 3.0 3.5 4.0 4.5 Input Voltage: VIN (V) 5.0 5.5 Oscillation Frequency : fosc (MHz) Oscillation Frequency : fosc (MHz) 4.0 Ta=-40℃ Ta=25℃ Ta=85℃ Ta=105℃ 3.5 3.0 2.5 IOUT=300mA 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Input Voltage: VIN (V) 13/17 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (7) Load Transient Response XCL214B183DR (VIN=5V, IOUT=1mA⇔1000mA) XCL214B183DR (VIN=5V, IOUT=100mA⇔1000mA) VOUT=1.8V VOUT=1.8V VOUT=1.8V VOUT=1.8V 1 1 =1mA⇔1000mA IIOUT OUT=1mA⇔1000mA 2 1ch：50mV/div　2ch：500mA/div H：100us/div IIOUT =100mA⇔1000mA OUT=100mA⇔1000mA 2 XCL214B333DR (VIN=5V, IOUT=100mA⇔1000mA) XCL214B333DR (VIN=5V, IOUT=1mA⇔1000mA) VOUT=3.3V VOUT=3.3V 1 1 IOUT=1mA⇔1000mA 2 1ch：50mV/div　2ch：500mA/div H:100us/div 1ch：50mV/div　2ch：500mA/div H:100us/div 14/16 IOUT=100mA⇔1000mA 2 1ch：50mV/div　2ch：500mA/div H:100us/div XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■PACKAGING INFORMATION For the latest package information go to, www.torexsemi.com/technical-support/packages PACKAGE OUTLINE / LAND PATTERN THERMAL CHARACTERISTICS USP-9B01 USP-9B01 PKG USP-9B01 Power Dissipation 15/17 XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 Series ■MARKING RULE USP-9B01 7 7 1 6 2 5 ① ② ⑤ ③ L1 ④ 3 4 L2 ① represents products series MARK PRODUCT SERIES A XCL213****** B XCL214****** ② represents integer of the type reference voltage OUTPUT MARK Type VOLTAGE (V) A B C D E F H K 0.X 1.X 2.X 3.X 0.X 1.X 2.X 3.X B E ③ represents decimal number of the reference voltage OUTPUT PRODUCT MARK VOLTAGE (V) SERIES X.0 X.1 X.2 X.3 X.4 X.5 X.6 X.7 X.8 X.9 0 1 2 3 4 5 6 7 8 9 XCL21***0*** XCL21***1*** XCL21***2*** XCL21***3*** XCL21***4*** XCL21***5*** XCL21***6*** XCL21***7*** XCL21***8*** XCL21***9*** 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. 16/16 PRODUCT SERIES XCL21**0**** XCL21**1**** XCL21**2**** XCL21**3**** XCL21*E0**** XCL21*E1**** XCL21*E2**** XCL21*E3**** OUTPUT VOLTAGE (V) MARK PRODUCT SERIES X.05 X.15 X.25 X.35 X.45 X.55 X.65 X.75 X.85 X.95 A B C D E F H K L M XCL21***A*** XCL21***B*** XCL21***C*** XCL21***D*** XCL21***E*** XCL21***F*** XCL21***H*** XCL21***K*** XCL21***L*** XCL21***M*** XCL213/XCL214 Series is Not Recommended for New Designs. XCL213/XCL214 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. 17/17