XC9131F05CDR-G

XC9131 series is Discontinued. XC9131 Series ETR04012-011 1A Driver Transistor Built-In, Multi Functional Step-Up DC/DC Converters ☆GreenOperation Compatible ■GENERAL DESCRIPTION XC9131 series are synchronous step-up DC/DC converters with a 0.2Ω(TYP.) N-channel driver transistor and a 0.2Ω(TYP.) synchronous P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 1.0A by reducing ON resistance of the built-in transistors. The series are able to start operation under the condition which has 0.9V input voltage to generate 3.3V output voltage with a 33Ωload resistor, suitable for mobile equipment using only one Alkaline battery or one Nickel metal hydride battery. During the operation of a shutdown, the load disconnection function enables to cut the current conduction path from the input to the output. The series has 0.5V (±0.01V) reference voltage integrated and being able to set an output voltage with external components. ■ FEATURES ■APPLICATIONS Input Voltage Range Output Voltage Range : 0.65V~5.5V : 1.8V~5.0V (VFB=0.50V±0.01V Set up with external components) Oscillation Frequency : 1.2MHz (±15%) Input Current : 1.0A Output Current : 500mA @ VOUT=3.3V, VIN=1.8V(TYP.) Control Mode Selection : PWM or Auto PWM/PFM Load Transient Response :100mV @ VOUT=3.3V, VIN=1.8V, IOUT=1mA→200mA Protection Circuits : Thermal shutdown Over-current limit Functions : Soft-start ●Digital audio equipments ●Digital still cameras / Camcorders ●Computer mouses ●Multi-function power supplies Load Disconnection Function CL Auto Discharge Function Output Capacitor Operating Ambient Temperature Package Environmentally Friendly ■TYPICAL APPLICATION CIRCUIT ●XC9131 Series (FB) Flag-out Function : Ceramic Capacitor : -40℃~+85℃ : USP-10B : EU RoHS Compliant, Pb Free ■TYPICAL PERFORMANCE CHARACTERISTICS XC9131x 05C ( V O U T =3.3V ) L=4.7μH(LTF5022-LC), CL =20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1 =560kΩ, RFB2 =100kΩ, CFB=10pF, FO=OPEN 100 VOUT CIN Lx L VIN CDD MODE CDD FO 90 VOUT PGND 80 CL AGND MODE FB FO EN RFB2 EN CFB RFB1 Efficiency: EFFI (%) BAT VIN=1.8V 2.4V 70 60 50 40 30 PWM/PFM PWM 20 10 0 0.1 1 10 100 1000 Output Current: IOUT (mA) 1/28 XC9131 series is Discontinued. XC9131 Series ■ PIN CONFIGURATION FO 5 6 EN FO 5 6 EN MODE 4 7 FB MODE 4 7 CDF CDD 3 8 AGND CDD 3 Lx 2 9 PGND Lx BAT 1 10 VOUT BAT FO 5 6 EN MODE 4 7 NC 8 AGND CDD 3 8 AGND 2 9 PGND Lx 2 9 PGND 1 10 VOUT BAT 1 10 VOUT USP-10B ( BOTTOM VIEW ) USP-10B ( BOTTOM VIEW ) USP-10B ( BOTTOM VIEW ) XC9135 series XC9136 series ■ PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTIONS 1 BAT Power Input 2 Lx Switching 3 CDD Bypass Capacitor Connection 4 MODE Mode Switching 5 FO Flag Output 6 EN Enable 7 FB Output Voltage Monitoring 8 AGND Analog Ground 9 PGND Power Ground 10 VOUT Output Voltage * The dissipation pad for the USP-10B package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the AGND (No.8) or PGND (No.9) pin. *Please short the GND pins (pins 8 and 9). ■ FUNCTION CHART 1. EN Pin Function EN PIN FUNCTIONS H Operation L Stop * Do not leave the EN pin open. 2. MODE Pin Function MODE PIN FUNCTIONS H PWM L PWM/PFM automatic control * Do not leave the MODE pin open. 2/28 XC9131 XC9131 series is Discontinued. Series ■ PRODUCT CLASSIFICATION ●Ordering Information XC9131①②③④⑤⑥-⑦(*1) DESIGNA TOR ITEM SYMBOL DESCRIPTION With CL Ａｕｔｏ Ｄｉｓｃｈａｒｇｅ F (AC adaptor). TYPE ① VOUT pin can not be connected to the different output pin such as another supply Without CL Ａｕｔｏ Ｄｉｓｃｈａｒｇｅ H VOUT pin can be connected to the different output pin such as another supply (AC adaptor). ②③ ④ ⑤⑥-⑦ (*1) (*1) Reference Voltage (FB) 05 Reference Voltage e.g. FB product, ②③=05 (Fixed) Oscillation Frequency C 1.2MHz Package (Order Unit) DR-G USP-10B (3,000/Reel) The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. 3/28 XC9131 series is Discontinued. XC9131 Series ■ BLOCK DIAGRAMS ●XC9131F Series Lx Load disconnect Controller Phase Compensation Error Amp. FB PWM Comparator FB VOUT CL Discharge PWM/PFM Controller, Logic Vref with Soft Start RAMP Wave Generator VOUT Current Sense OSC Buffer Driver PGND MODE MODE EN, Thermal Shutdown EN AGND VOUT BAT VDD MAX FO CDD FO * Diodes inside the circuit are an ESD protection diode and a parasitic diode. ●XC9131H Series Lx Load disconnect Controller Phase Compensation Error Amp. FB PWM Comparator FB RAMP Wave Generator OSC VOUT VOUT PWM/PFM Controller, Logic Vref with Soft Start EN Current Sense Buffer Driver PGND MODE MODE EN, Thermal Shutdown AGND VOUT BAT VDD MAX FO CDD FO * Diodes inside the circuit are an ESD protection diode and a parasitic diode. 4/28 XC9131 XC9131 series is Discontinued. Series ■ ABSOLUTE MAXIMUM RATINGS Ta=25℃ PARAMETER SYMBOL RATINGS UNITS VOUT Pin Voltage VOUT -0.3～7.0 V CDD Pin Voltage VCDD -0.3～7.0 V FO Pin Voltage VFO -0.3～7.0 V FO Pin Current IFO 10 mA FB Pin Voltage VFB -0.3～7.0 V BAT Pin Voltage VBAT -0.3～7.0 V MODE Pin Voltage VMODE -0.3～7.0 V EN Pin Voltage VEN -0.3～7.0 V Lx Pin Voltage VLx -0.3～VOUT+0.3 V Lx Pin Current ILx ±2000 mA Pd 150 mW Operating Ambient Temperature Topr -40 ～ +85 oC Storage Temperature Tstg -55 ～ +125 oC Power Dissipation USP-10B * AGND and PGND are standard voltage for all of the voltage. 5/28 XC9131 series is Discontinued. XC9131 Series ■ELECTRICAL CHARACTERISTICS ●XC9131F05C / XC9131H05C Ta=25 oC PARAMETER SYMBOL Input Voltage VIN FB Voltage VFB Output Voltage Setting Range VOUTSET Operation Start Voltage VST1 CONDITIONS VOUT= 3.3V, VMODE=0V Voltage to start oscillation while VFB=0.511V→0.49V RL=1kΩ, VMODE=0V MIN. TYP. MAX. UNITS - - 5.5 V 0.490 0.500 0.510 V ⑤ 1.8 - 5.0 V ① - - 0.85 V ① (*1) V ① RL=33Ω, VMODE=0V - - 0.9 CIRCUIT Operation Hold Voltage VHLD RL=1kΩ, VMODE=0V - 0.65 - V ① Supply Current Iq VFB=0.5V×1.1 (oscillation stops) - 36 50 μA ② Input Pin Current IBAT VIN=1.8V, VEN=3.3V, VFB=0.5V×1.1 μA ⑥ μA ③ Stand-by Current (XC9131F) - 0.65 2.0 - 0.10 2.0 - 0.90 5.0 ISTB VIN=VLx=3.3V Lx Leakage Current ILxL VIN=VLx=3.3V - 0.1 2.0 μA ④ Oscillation Frequency fOSC VFB=0.5V×0.9 1.02 1.20 1.38 MHz ⑤ Maximum Duty Cycle DMAX VFB=0.5V×0.9 88 93 97 % ⑤ Stand-by Current (XC9131H) Minimum Duty Cycle DMIN VFB=0.5V×1.1 - - 0 % ⑤ PFM Switching Current IPFM VMODE=0V, RL=330Ω - 250 350 mA ① Efficiency (*2) EFFI IOUT=100mA, L=4.7μH(LTF5022-LC), CFB=10pF - 93 - LX SW "Pch" ON Resistance RLxP - 0.20 LX SW "Nch" ON Resistance RLxN VFB=0.5V×0.9 (*4) - Maximum Current Limit ILIM VOUT>2.5V (*7) Soft-Start Time tSS VIN= 3.3V, VFB=0.5V×0.95 Time to start oscillation while VEN=0V→VIN Thermal Shut Temperature Hysteresis Width CL Discharge Resistance % ① (*1) 0.35 Ω ⑧ 0.20(*1) 0.35(*1) Ω ⑨ 1.2 1.5 2.0 A ① 2.8 5.0 8.0 ms ⑤ TTSD - 150 - o THYS - 20 - o VLx=3.3V, VFB=0.5V×1.1, IOUT=200mA (*3) C C RDCHG VIN=VOUT=2.0V (*5) 100 200 400 Ω ⑥ FO ON Resistance RFO VEN=3.3V, VFO=0.5V (*6) 100 150 200 Ω ⑦ FO Leakage Current IFO_LEAK VFO=5.5V - 0 1 μA ⑦ EN "H" Voltage VENH VIN=3.3V, VFB=0.5V×0.9 Voltage to start oscillation while VEN=0.2V→0.75V 0.75 - 5.5 V ⑤ EN "L" Voltage VENL VIN=3.3V, VFB=0.5V×0.9 Voltage to stop oscillation while VEN=0.75V →0.2V AGND - 0.2 V ⑤ (XC9131F) 6/28 XC9131 XC9131 series is Discontinued. Series ■ELECTRICAL CHARACTERISTICS (Continued) ●XC9131F05C / XC9131H05C (Continued) PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT MODE "H" Voltage VMODEH MODE "L" Voltage VMODEL RL=330Ω, Voltage operates at PWM control 0.75 - 5.5 V ① RL=330Ω, Voltage operates at PFM control AGND - 0.2 V EN "H" Current ① IENH VIN=VOUT=VFB=VEN=5.5V - - 0.1 μA ② EN "L" Current IENL VIN=VOUT=VFB=5.5V, VEN=0V -0.1 - - μA ② MODE "H" Current IMODEH VIN=VOUT=VFB=VEN=VMODE=5.5V - - 0.1 μA ② MODE "L" Current IMODEL VIN=VOUT=VFB=VEN=5.5V, VMODE=0V -0.1 - - μA ② FB "H" Current IFBH VIN=VOUT=VEN=VFB=5.5V - - 0.1 μA ② FB "L" Current IFBL VIN=VOUT=VEN=5.5V, VFB=0V -0.1 - - μA ② External Components: CIN=10μF(ceramic), L=2.2μH(VLCF4020 TDK), CDD=0.47μF(ceramic), RFB1=560kΩ, RFB2=100kΩ CIN=22μF(ceramic), CFB=0pF Test Conditions: For the Circuit No.1, unless otherwise stated, VIN=1.8V, VEN=VMODE=3.3V For the Circuit No.2, unless otherwise stated, VIN=VOUT=VEN=3.3V, VMODE=0V (GND connected) For the Circuit No.3, unless otherwise stated, VOUT=VEN=VMODE=VFB=0V (GND connected) For the Circuit No.4, unless otherwise stated, VOUT=VEN=VMODE=VFB=0V (GND connected) For the Circuit No.5, unless otherwise stated, VIN=0.9V, VOUT=VEN=VMODE=Vpull=3.3V For the Circuit No.6, unless otherwise stated, VOUT=3.3V, VEN=VMODE=VFB=0V (GND connected) For the Circuit No.7, unless otherwise stated, VIN=VOUT=VFB=3.3V, VEN=VMODE=0V (GND connected) For the Circuit No.8, unless otherwise stated, VIN=VEN=VMODE=3.3V For the Circuit No.9, unless otherwise stated, VIN=VOUT=VEN=3.3V,VFB=VMODE=0V (GND connected) NOTE: * 1 : Designed value * 2 : Efficiency ={(output voltage) X (output current)} ÷ {(input voltage) X (input current)} X 100 * 3 : LX SW "P-ch" ON resistance=（VLx-VOUT pin test voltage）÷200mA * 4 : Testing method of LX SW "N-ch" ON resistance is stated at test circuits. * 5 : CL Discharge resistance = VOUT ÷ VOUT pin measure current * 6 : FO ON resistance = VFO ÷ FO pin measure current * 7 : When the output voltage is lower than 2.5V, the maximum current limit may become low. 7/28 XC9131 series is Discontinued. XC9131 Series ■TYPICAL APPLICATION CIRCUIT ●XC9131 Series VOUT CIN VOUT BAT PGND Lx L VIN CDD MODE CDD FO CL AGND MODE FB FO EN CFB RFB1 RFB2 EN Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based on the values of RFB1 and RFB2. The sum of RFB1 and RFB2 should normally be 1000kΩ or less. VOUT=0.5×(RFB1+RFB2)/RFB2 The value of CFB, speed-up capacitor for phase compensation, should be 0pF or fzfb = 1/(2π×CFB×RFB1) which is higher than 20 kHz. Also, when the input voltage, VIN is lower than 1.5V, CFB is 0pF. Adjustments are depending on application, inductance (L), load capacitance (CL) and dropout voltage. [Example of calculation] When RFB1=560kΩ,RFB2=100kΩ, VOUT=0.5×(560k+100k)/100k=3.3V When CFB=10pF, fzfb=1/（2π×10p×560k）=28.42kHz [Typical example] VOUT (V) RFB1 (kΩ) RFB2 (kΩ) CFB (pF) 1.8 390 150 0 3.3 560 100 10 5.0 270 30 15 [External Components] fOSC=1.2MHz L: 2.2μH～4.7μH VLCF4020 series, LTF5022-LC series CL: CIN: Should be selected in 20μF or higher Capacitor JMK212BJ106KG×2、LMK212BJ106KG×2、LMK316BJ226ML is recommended. Ceramic capacitor: B (JIS standard) or X7R, X5R (EIA standard) 10μF Capacitor JMK212BJ106KG or LMK212BJ106KG is recommended. Ceramic capacitor: B (JIS standard) or X7R, X5R (EIA standard) CDD: 0.47μF (Ceramic capacitor) * VDD voltage is constantly applied to the CDD capacitor. While selecting a part, please concern about capacitance reduction and voltage durability. * For the coil L, please use 2.2μH to 4.7μH. However, when the input voltage VIN is lower than 1.5V, please use 2.2μH. * Capacitance CL is recommended 20μF or higher. (Ceramic capacitor compatible) When you select the external components, please consider capacitance loss and voltage durability. * If using tantalum or low ESR electrolytic capacitors please be aware that ripple voltage will be higher due to the larger ESR (Equivalent Series Resistance) values of those types of capacitors. Please also note that the IC’s operation may become unstable with such capacitors so that we recommend to test on the board before usage. * If using electrolytic capacitor for the CL, please connect a ceramic capacitor in parallel. 8/28 XC9131 XC9131 series is Discontinued. Series ■OPERATIONAL EXPLANATION The XC9131 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase compensation circuit, N-channel driver transistor, P-channel synchronousL rectification switching transistor and current limiter circuit. x Load disconnect Controller Phase Compensation Error Amp. FB VOUT CL Discharge PWM/PFM Controller, Logic Vref with Soft Start EN PWM Comparator FB RAMP Wave Generator VOUT Current Sense OSC Buffer Driver PGND MODE MODE EN, Thermal Shutdown AGND VOUT BAT VDD MAX FO CDD FO The XC9131 series has FB pin for external components RFB１ and RFB2. The error amplifier compares the internal reference voltage with the FB pin feed back voltage via resistors RFB1 and RFB2. Phase compensation is performed on the resulting error amplifier output, to input a signal to the PWM comparator to determine the turn-on time of the N-channel driver transistor during PWM operation. The PWM comparator compares, in terms of voltage level, the signal from the error amplifier with the ramp wave from the ramp wave circuit, and delivers the resulting output to the buffer driver circuit to cause the Lx pin to output a switching duty cycle. This process is continuously performed to ensure stable output voltage. The current feedback circuit monitors the N-channel driver transistor’s turn-on current for each switching operation, and modulates the error amplifier output signal to provide multiple feedback signals. This enables a stable feedback loop even when a low ESR capacitor, such as a ceramic capacitor, is used, ensuring stable output voltage. The source provides the reference voltage to ensure stable output of the DC/DC converter. The ramp wave circuit determines switching frequency. The frequency is fixed internally at 1.2MHz. The Clock generated is used to produce ramp waveforms needed for PWM operation, and to synchronize all the internal circuits. The error amplifier is designed to monitor output voltage. The amplifier compares the reference voltage with the feedback voltage divided by the internal resistors (RFB1 and RFB2). When the FB pin is lower than the reference voltage, output voltage of the error amplifier increases. The gain and frequency characteristics of the error amplifier are optimized internally. < Maximum Current Limit> The current limiter circuit monitors the maximum current flowing through the N-channel driver transistor connected to the Lx pin. ① When the driver current is greater than a specific level (equivalent to peak coil current), the maximum current limit function starts to operate and the pulses from the Lx pin turn off the N-channel driver transistor at any given time. ② When the driver transistor is turned off, the limiter circuit is then released from the maximum current limit detection state. ③ At the next pulse, the driver transistor is turned on. However, the transistor is immediately turned off in the case of an over current state. ④ When the over current state is eliminated, the IC resumes its normal operation. The XC9131 series does not have this latch function, so operation steps ① through ③ repeat until the over current state ends. Please note that the current flow into the N-channel driver transistor is different from output current IOUT. Limit< # ms Limit> # ms Current Limit LEVEL IOUT 0mA VOUT VSS LX EN Restart 9/28 XC9131 series is Discontinued. XC9131 Series ■OPERATIONAL EXPLANATION (Continued) For protection against heat damage, the thermal shutdown function monitors chip temperature. When the chip’s temperature reaches 150OC (TYP.), the thermal shutdown circuit starts operating and the driver transistor will be turned off. At the same time, the output voltage decreases. When the temperature drops to 130OC (TYP.) after shutting off the current flow, the IC performs the soft start function to initiate output startup operation. The MODE pin operates in PWM mode by applying a high level voltage and in PFM/PWM automatic switching mode by applying a low level voltage. The IC enters chip disable state by applying low level voltage to the EN pin. At this time, the N-channel and P-channel synchronous switching transistors are turned OFF. Please also note that a parasitic diode of the P-channel synchronous switch is controlled, thus, the current conduction path is disconnected. The FO pin becomes high impedance during over current state, over temperature state, soft-start period, and shut-down period. In normal state, the FO pin is low impedance. The FO pin is N-channel open drain output. XC9131F series can discharge the electric charge at the output capacitor (CL) when a low signal to the EN pin which enables a whole IC circuit put into OFF state, is inputted via the N-channel transistor located between the VOUT pin and the PGND pin. When the IC is disabled, electric charge at the output capacitor (CL) is quickly discharged so that it may avoid application malfunction. Discharge time of the output capacitor (CL) is set by the CL auto-discharge resistance (R) and the output capacitor (CL). By setting time constant of a CL auto-discharge resistance value [RDCHG] and an output capacitor value (CL) as τ(τ=C x R), discharge time of the output voltage after discharge via the N channel transistor is calculated by the following formulas. However, the CL discharge resistance [RDCHG] is depends on the VBAT or VOUT, so it is difficult to make sure the discharge time. We recommend that you fully check actual performance. V = VOUT×e -t /τ or t = τ Ln (VOUT/V) V : Output voltage after discharge VOUT : Output voltage t : Discharge time τ : C×R C : Capacitance of Output capacitor (CL) R : CL Discharge resistance, it depends on supply voltage ●Output Voltage Discharge Characteristics CL =20μF 5.5 5.0 Output Voltage: VOUT (V) 4.5 4.0 3.5 3.0 2.5 VOUTSET=1.8V, VIN=1.0V VOUTSET=3.3V, VIN=2.0V 2.0 VOUTSET=5.0V, VIN=2.0V 1.5 1.0 0.5 0.0 0.000 0.005 0.010 0.015 Discharge Time: t(s) The XC9131H series do not have CL discharge function. If the MODE pin is set low to select auto PWM/PFM mode, the output of XC9131H series can be connected to another power supply. However, it should be noted that when the output of XC9131F series is connected to another power supply, the IC may be damaged. < CDD, VDDMAX> VDD MAX circuit compares the input voltage and the output voltage then it will select the higher one as the power supply for the IC. The higher voltage will be supplied to the CDD pin and the IC operates in stable when a capacitor is connected. 10/28 XC9131 XC9131 series is Discontinued. Series ■NOTE ON USE 1. Please do not exceed the stated absolute maximum ratings values. 2. The DC/DC converter performance is greatly influenced by not only the ICs' characteristics, but also by those of the external components. Care must be taken when selecting the external components. Especially for CL load capacitor, it is recommended to use type B capacitors (JIS regulation) or X7R, X5R capacitors (EIA regulation). 3. Make sure that the PCB GND traces are as thick and wide as possible. The ground voltage fluctuation caused by high ground current at the time of switching may result in instability of the IC. Therefore, the GND traces close to PGND pin and AGND pin are important. 4. Please mount each external component as close to the IC as possible. Also, please make traces thick and short to reduce the circuit impedance. 5. When the device is used in high step-up ratio, the current limit function may not work during excessive load current. In this case, the maximum duty cycle limits maximum current. 6. In case of connecting to another power supply as shown in below circuit diagram, please use the XC9131H series. Please also note that the MODE pin is fixed in low level for selecting PWM/PFM auto mode. If the MODE pin is in high to maintain fixed PWM control mode, the backflow current may happen. If the output of XC9131F series is connected to another power supply, the IC may be damaged. USB AC Adapter USB AC Adapter D D VOUT CIN BAT Lx L VIN CDD CDD FO CIN VOUT VOUT PGND BAT CL AGND MODE FB FO EN CFB RFB1 L VIN Lx CDD RFB2 EN MODE CDD FO MODE FO VOUT PGND CL AGND CDF EN EN Cdf 7. The maximum current limiter controls the limit of the N-channel driver transistor by monitoring current flow. This function does not limit the current flow of the P-channel synchronous transistor. When over current flows to the P-channel synchronous transistor in case of load, the IC may be damaged. 8. The MODE pin and EN pin are not pulled-down internally. Please make sure that the voltage applied to the MODE pin and the EN pin. 9. When used in small step-up ratios, the device may skip pulses during PWM control mode. 10. In the PWM/PFM auto, transition from PFM to PWM mode, or PWM to PFM mode, the output voltage may be fluctuated. (Please refer below) VOUT VIN=4.2V, VOUT=5.0V, MODE: Auto PWM/PFM VOUT:50mV/div, ILx:200mA/div, Time:20μs/div L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA-T) RFB1=270kΩ, RFB2=30kΩ, CFB=10pF ILx 11/28 XC9131 Series XC9131 series is Discontinued. ■NOTE ON USE (Continued) 11. When used in large step-up ratios and small load current, the output voltage may change when PWM/PFM auto is changed to PWM control mode by using the MODE pin. (Please refer below) VOUT VIN=0.9V, VOUT=5.0V, MODE:PWM/PFM→PWM, IOUT=3mA VLx VOUT:100mV/div, ILx:500mA/div, VLx:10V/div, VMODE:5V/div, Time:200μs/div L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA-T) RFB1=270kΩ, RFB2=30kΩ, CFB=0pF ILx VMODE 12. After the soft-start period, when used in VIN＞VOUTSET（the input voltage is higher than the output voltage）, In the XC9131H series, the P-channel synchronous transistor is turned on when MODE pin is tied to high. When the MODE pin is tied to low, the current flows into the parasitic diode of the P-channel synchronous transistor so that results in generating excessive heat in the IC. Please test in the board before usage with considering heat dissipation. For the XC9131F series the P-channel synchronous transistor is always turned on which is no matter of MODE pin control. 13. During start-up, when output setting voltage is lower than 2V, the PWM/PFM auto mode should be selected. In case of the fixed PWM control mode, the output voltage may become smaller than the setting voltage. When the setting output voltage is higher than 2V, the IC can be started to operate in the both modes of PWM/PFM auto and fixed PWM control. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be exceeded. Torex places an importance on improving our products and its reliability. However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment. 14. 15. 12/28 XC9131 XC9131 series is Discontinued. Series ■NOTE ON USE (Continued) ●Instructions for pattern layouts 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 and VSS pins. 2. Please mount each external component as close to the IC as possible. 3. Place external components as close to the IC as possible and use thick and short traces to reduce the circuit impedance. 4. Make sure that the PCB GND traces are thick and wide as possible. Ground voltage level fluctuation created by high ground current at the time of switching may cause instability of the IC. 5. The internal driver transistors bring on heat because of the IIN current and ON resistance of the driver transistors. ●Example of pattern layout FRONT BACK 13/28 XC9131 series is Discontinued. XC9131 Series ■TEST CIRCUITS < Circuit No.1 > XC9131F/H Wave Form Measure Point VOUT BAT L C FB R FB 1 V IN A FB Lx CL A MODE V EN CIN CDD AGND V ※ External Components : 2.2 μH (VLCF 4020-2R 2:TDK) L : 10μ F ( ceramic) CIN CDD : 0. 47μF (ceramic) CL : 22μ F ( ceramic) C FB : 0 pF RFB 1 : 560 kΩ RFB 2 : 100 kΩ VOUT R FB 2 VEN FO V MODE RL C DD PGND XC9135A/C/L/M/B/K/R/T XC9136E/N Wave Form Measure Point BAT VOUT L A V IN CL MODE V CIN RL EN R FO V MODE V VOUT VEN CDD FO VFO ※ External Components L : 2.2 μH (VLCF 4020 - 2R 2 :TDK) CIN : 10μ F (ceramic) CDD : 0. 47μF (ceramic) : 22μ F (ceramic) CL CDF : 1000 pF RFB2 : 10kΩ CDF Lx A C DF C DD AGND PGND < Circuit No.2 > < Circuit No.3 > BAT VOUT Lx FB (CDF) A BAT VOUT Lx FB (CDF) A V OUT A MODE VIN VFB EN MODE A FO CDD AGND ※ PGND AGND ※ External Components CDD : 0. 47μ F ( ceramic) < Circuit No.4 > BAT Lx VIN VOUT FB (CDF) VOU A T MODE VFB EN VLx VEN VMODE FO AGND CDD PGND ※　External Components CDD : 0.47μF (ceramic) 　　 14/28 VEN FO V MODE C DD V MODE CDD EN VIN V EN A VFB CDD PGND External Components C DD : 0. 47μ F ( ceramic) C DD XC9131 XC9131 series is Discontinued. Series ■TEST CIRCUITS < Circuit No.5 > XC9131F/H XC9135A/C/L/M/B/K/R/T XC9136E/N Wave Form Measure Point Wave Form Measure Point BAT VOUT Rpull Lx VIN CIN MODE FB VOUT VIN CIN EN Lx Vpull VFB Vpull FO AGND CDD CDD VOUT CDF EN VEN R FO CDD FO V FO PGND AGND CDD PGND * External Components 　　 CIN : 10μF (ceramic) Rpull : 51Ω RFO : 10kΩ CDD : 0.47μF (ceramic) 　　　CDF : 1000pF (ceramic) * External Components 　　 CIN : 10μF (ceramic) Rpull : 51Ω CDD : 0.47μF (ceramic) < Circuit No.6> BAT VOUT Lx FB (CDF) MODE VOUT VIN VFB EN VIN AGND CDD VOUT Lx FB (CDF) MODE VFB EN VMODE VEN FO BAT A A VMODE CDF MODE VMODE VEN VMODE VOUT BAT Rpull VEN VFO CDD A FO CDD AGND PGND CDD PGND * External Components 　 CDD : 0.47μF (ceramic) * External Components 　 CDD : 0.47μF (ceramic) Wave Form Measure Point VIN BAT VOUT Lx FB (CDF) MODE SBD VＯＵＴ V EN VFB VLx VMODE FO AGND CDD PGND * External Components 　　CDD : 0.47μF (ceramic) VOUT Lx FB (CDF) V1 IOUT VIN MODE Vpull VFB EN VOUT (CDF) VEN VEN CDD BAT Rpull VMODE FO AGND CDD CDD PGND * External Components 　 CDD : 0.47μF (ceramic) SBD : XBS304S17(TOREX) Rpull : 0.5Ω　　 Using the layout of circuit No.9 above, set the LX pin voltage to 50mV by adjusting the Vpull voltage whilst the N-channel driver transistor is turned on. Then, measure the voltage difference between both ends of Rpull. ON Resistance is calculated by using the following formula: RLXN=0.05 ÷ ((V1 – 0.05) ÷ 0.5) where V1 is a node voltage between SBD and Rpull. LX pin voltage and V1 are measured by an oscilloscope. 15/28 XC9131 series is Discontinued. XC9131 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Efficiency vs. Output Current XC9131x05C (VOUT=3.3V) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=10pF, FO=OPEN 100 100 90 90 80 80 70 VIN=0.9V 60 1.2V 50 40 1.8V 2.4V 30 PWM/PFM PWM 20 10 Efficiency: EFFI (%) Efficiency: EFFI (%) XC9131x05C (VOUT=3.3V) L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=0pF, FO=OPEN VIN=1.8V 2.4V 70 60 50 40 30 PWM/PFM PWM 20 10 0 0 0.1 1 10 100 Output Current: IOUT (mA) 1000 0.1 100 100 90 90 80 70 Efficiency: EFFI (%) Efficiency: EFFI (%) 80 VIN=0.9V 60 1.2V 50 40 30 PWM/PFM PWM 20 VIN=1.8V 70 2.4V 3.7V 60 50 40 30 PWM/PFM PWM 20 10 10 0 0 0.1 1 10 100 0.1 1000 Output Current: IOUT (mA) (2) Output Voltage vs. Output Current XC9131x05C (VOUT=3.3V) 1 10 100 Output Current: IOUT (mA) 1000 XC9131x05C (VOUT=3.3V) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=10pF, FO=OPEN L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=0pF, FO=OPEN 3.5 3.4 3.3 VIN=0.9V 3.2 1.8V 3.1 2.4V PWM/PFM PWM 3.0 Output Voltage: VOUT (V) 3.5 Output Voltage: VOUT (V) 1000 XC9131x05C (VOUT=5.0V) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=270kΩ, RFB2=30kΩ, CFB=10pF, FO=OPEN XC9131x05C (VOUT=1.8V) L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=390kΩ, RFB2=150kΩ, CFB=0pF, FO=OPEN 3.4 3.3 VIN=1.8V 3.2 2.4V PWM/PFM PWM 3.1 3.0 0.1 1 10 100 Output Current: IOUT (mA) 16/28 1 10 100 Output Current: IOUT (mA) 1000 0.1 1 10 100 Output Current: IOUT (mA) 1000 XC9131 XC9131 series is Discontinued. Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (2) Output Voltage vs. Output Current (Continued) XC9131x05C (VOUT=1.8V) XC9131x05C (VOUT=5.0V) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=270kΩ, RFB2=30kΩ, CFB=10pF, FO=OPEN L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=390kΩ, RFB2=150kΩ, CFB=0pF, FO=OPEN 5.2 Output Voltage: VOUT (V) Output Voltage: VOUT (V) 2 1.9 1.8 VIN=0.9V 1.7 1.2V PWM/PFM PWM 1.6 5.1 5.0 VIN=1.8V 4.9 2.4V 3.7V PWM/PFM PWM 4.8 4.7 1.5 0.1 1 10 100 0.1 1000 Output Current: IOUT (mA) 1 10 100 Output Current: IOUT (mA) 1000 (3) Ripple Voltage vs. Output Current XC9131x05C (VOUT=3.3V) L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=0pF, FO=OPEN XC9131x05C (VOUT=3.3V) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=10pF, FO=OPEN 100 100 90 PWM/PFM PWM 80 70 Ripple Voltage: Vr(mV) Ripple Voltage: Vr(mV) 90 60 50 2.4V 40 1.8V 1.2V VIN=0.9V 30 20 PWM/PFM PWM 80 70 60 50 VIN=1.8V 40 20 10 10 0 0 0.1 1 10 100 Output Current: IOUT (mA) 0.1 1000 XC9131x05C (VOUT=1.8V) L=2.2μH(VLCF4020), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=390kΩ, RFB2=150kΩ, CFB=0pF, FO=OPEN 1 10 100 Output Current: IOUT (mA) 1000 XC9131x05C (VOUT=5.0V) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=270kΩ, RFB2=30kΩ, CFB=10pF, FO=OPEN 100 100 90 80 PWM/PFM PWM 70 60 Ripple Voltage: Vr(mV) Ripple Voltage: Vr(mV) 2.4V 30 50 VIN=0.9V 40 30 1.2V 20 10 0 90 80 PWM/PFM PWM 70 60 50 VIN=1.8V 40 30 2.4V 3.7V 20 10 0 0.1 1 10 100 Output Current: IOUT (mA) 1000 0.1 1 10 100 Output Current: IOUT (mA) 1000 17/28 XC9131 series is Discontinued. XC9131 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (5) Supply Current vs. Ambient Temperature (4) FB Voltage vs. Ambient Temperature XC9131x05C XC9131x05C fOSC=1.2MHz 60 Supply Current: Iq (μA) Feedback Voltage: VFB (V) 0.52 0.51 0.50 VOUT=5.0V 3.3V 1.8V 0.49 0.48 -50 50 75 0 25 -25 Ambient Temperature: Ta (℃) 50 40 30 20 VOUT=5.0V 3.3V 1.8V 10 0 -50 100 -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 (6) Stand-by Current vs. Ambient Temperature XC9131F05C fOSC=1.2MHz 5 fOSC=1.2MHz 5 Standby Current: ISTB (μA) Standby Current: ISTB (μA) XC9131H05C 4 3 VIN=5.0V 3.3V 1.8V 2 1 0 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) 4 3 VIN=5.0V 3.3V 1.8V 2 1 0 -50 100 -25 0 25 50 75 Ambient Temperature: Ta (℃) (8) Maximum Duty Cycle vs. Ambient Temperature (7) Oscillation Frequency vs. Ambient Temperature XC9131x05C XC9131x05C Maximum Duty Cycle: DMAX (%) Oscillation Freqency: fOSC (MHz) 1.35 1.30 1.25 1.20 1.15 VOUT=1.8V 3.3V 5.0V 1.05 1.00 -50 18/28 fOSC=1.2MHz 100 1.40 1.10 -25 100 0 25 50 75 Ambient Temperature: Ta (℃) 100 95 90 85 80 -50 VOUT=1.8V 3.3V 5.0V -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 XC9131 XC9131 series is Discontinued. Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (9) Lx SW “N-ch” ON Resistance vs. Output Voltage (10) Lx SW “P-ch” ON Resistance vs. Ambient Temperature XC9131x05C XC9131x05C VOUT=3.3V 0.9 0.8 0.7 0.6 25℃ 0.5 0.4 Ta=85℃ 0.3 0.2 -40℃ 0.1 0.0 0 1 2 3 4 Output Voltage: VOUT (V) 1.0 Lx SW Pch ON Resistance: RLxP (Ω) Lx SW Nch ON Resistance: RLxN (Ω) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 5 (11) Lx Leakage Current vs. Ambient Temperature -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) (12) Soft-Start Time vs. Ambient Temperature XC9131x05C 4.0 3.0 2.0 1.0 VLx=5.0V 3.3V 1.8V fOSC=1.2MHz 10.0 Soft-Start Time: tSS (ms) Lx Leak Current: ILxL (μA) XC9131x05C VBAT=VLx, VOUT=VEN=0V 5.0 9.0 8.0 7.0 VOUT=5.0V 3.3V 1.8V 6.0 5.0 4.0 3.0 0.0 -50 -25 0 25 50 75 Ambient Temperature : Ta (℃) 2.0 -50 100 -25 0 25 50 75 Ambient Temperature: Ta (℃) XC9131x05C VOUT=5V, fOSC=1.2MHz L=4.7μH (LTF5022-LC), CL=22μF (ceramic) CIN=10μF(ceramic), CDD=0.47μF (ceramic) 325 300 275 250 225 200 0.0 1.0 2.0 3.0 4.0 Input Voltage: VIN (V) 5.0 6.0 MODE "H" "L" Voltage: VMODEH ,VMODEL (V) XC9131x05C 350 100 (14) MODE "H", "L" Voltage vs. Output Voltage (13) PFM Switch Current vs. Input Voltage PFM SW Current: IPFM (mA) 100 0.8 0.7 0.6 0.5 0.4 VOUT=5.0V 3.3V 1.8V 0.3 0.2 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 19/28 XC9131 series is Discontinued. XC9131 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (15) EN "H" Voltage vs. Output Voltage (16) EN "L" Voltage vs. Output Voltage XC9131x05C 0.8 0.8 0.7 0.7 EN "L" Voltage: VENL (V) EN"H" Voltage: VENH (V) XC9131x05C Ta=-40℃ 0.6 0.5 85℃ 0.4 25℃ 0.3 Ta=-40℃ 0.6 0.5 85℃ 0.4 25℃ 0.3 0.2 0.2 0 1 2 3 4 Output Voltage: VOUT (V) 5 0 6 1 2 3 4 Output Voltage: VOUT (V) 5 6 (17) Operation Start Voltage vs. Ambient Temperature XC9131x05C 0.9 0.8 0.7 VOUT=1.8V 3.3V 5.0V 0.6 MODE:PWM/PFM, RL=33Ω, fOSC=1.2MHz L=2.2μH (VLCF4020), CL=22μF (ceramic) CIN=10μF(ceramic), CDD=0.47μF (ceramic) 1.0 Operation Start Voltage: VST1 (V) 1.0 Operation Start Voltage: VST1 (V) XC9131x05C MODE:PWM/PFM, RL=1kΩ, fOSC=1.2MHz L=2.2μH (VLCF4020), CL=22μF (ceramic) CIN=10μF(ceramic), CDD=0.47μF (ceramic) 0.5 0.9 VOUT=3.3V 0.8 0.7 0.6 0.5 0.4 0.4 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) -50 100 (18) Operation Hold Voltage vs. Ambient Temperature -25 0 25 50 75 Ambient Temperature: Ta (℃) (19) No Load Input Current vs. Input Voltage XC9131x05C XC9131x05C MODE:PWM/PFM, RL=1kΩ, fOSC=1.2MHz L=2.2μH (VLCF4020), CL=22μF (ceramic) CIN=10μF(ceramic), CDD=0.47μF (ceramic) MODE:PWM/PFM, RL:OPEN, fOSC=1.2MHz L=2.2μH (VLCF4020), CL=22μF (ceramic) CIN=10μF(ceramic), CDD=0.47μF (ceramic), Ta=25℃ 1.0 No Load Input Current: IIN (mA) Operation Hold Voltage: VHLD (V) 1.0 0.9 VOUT=1.8V 3.3V 5.0V 0.8 100 0.7 0.6 0.5 0.8 0.6 1.8V 0.4 3.3V 0.2 VOUT=5.0V 0.0 0.4 -50 20/28 -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 0.0 1.0 2.0 3.0 4.0 Input Voltage: VIN (V) 5.0 6.0 XC9131 XC9131 series is Discontinued. Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (20) FO ON Resistance vs. Ambient Temperature (21) CL Discharge Resistance vs. Ambient Temperature XC9131x05C CL Discharge Resistance: RDCHG (Ω) VBAT=VOUT=VEN, VFO=0.5V 400 FO ON Resistance: RFO (Ω) XC9131F05C 350 300 250 1.8V 3.3V 200 150 VOUT=5.0V 100 50 0 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 VBAT=VOUT, VEN=0V 400 350 300 250 1.8V 200 3.3V 150 100 VOUT=5.0V 50 0 -50 -25 0 25 50 75 Ambient Temperature: Ta (℃) 100 21/28 XC9131 series is Discontinued. XC9131 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (22) Soft-start VOUT=3.3V, VIN=1.8V, RL=33Ω,MODE:PWM/PFM VOUT VOUT ILx VOUT=5.0V, VIN=5.5V, RL=50Ω VFO VEN ILx VEN XC9131x05C (1.2MHz) XC9131x05C (1.2MHz) VOUT:1V/div, ILx:200mA/div, VEN:5/div, VFO:5V/div Time:2ms/div VOUT:2V/div, ILx:500mA/div, VEN:5/div, Time:100us/div L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG),CDD=0.47μF(EMK107BJ474KA) CIN=10μF(LMK212BJ106KG),CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=10pF RFB1=270kΩ, RFB2=30kΩ, CFB=10pF VOUT=2.0V, VIN=0.9V, RL=20Ω, MODE:PWM/PFM VOUT ILx VIN XC9131x05C(1.2MHz) VOUT:1V/div, ILx:200mA/div, VIN:1V/div, Time:2ms/div L=2.2μH(VLS252012), CL=22μF(LMK212BJ226MG) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=300kΩ, RFB2=100kΩ, CFB=0pF 22/28 XC9131 XC9131 series is Discontinued. Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (23) Load Transient Response VOUT=1.8V, VIN=0.9V, IOUT=1mA→100mA VOUT=1.8V, VIN=0.9V, IOUT=100mA→1mA VOUT VOUT ILx ILx IOUT IOUT XC9131x05C (1.2MHz, PWM/PFM) XC9131x05C (1.2MHz, PWM/PFM) VOUT:100mV/div, ILx:200mA/div, IOUT:100mA/div, Time:50μs/div VOUT:100mV/div, ILx:200mA/div, IOUT:100mA/div, Time:1ms/div L=2.2μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) L=2.2μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=390kΩ, RFB2=150kΩ, CFB=0pF RFB1=390kΩ, RFB2=150kΩ, CFB=0pF VOUT=3.3V, VIN=1.8V, IOUT=1mA→200mA VOUT=3.3V, VIN=1.8V, IOUT=200mA→1mA VOUT VOUT ILx ILx IOUT IOUT XC9131x05C (1.2MHz, PWM/PFM) XC9131x05C (1.2MHz, PWM/PFM) VOUT:100mV/div, ILx:200mA/div, IOUT:200mA/div, Time:50μs/div VOUT:100mV/div, ILx:200mA/div, IOUT:200mA/div, Time:1ms/div L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=10pF RFB1=560kΩ, RFB2=100kΩ, CFB=10pF VOUT=3.3V, VIN=1.8V, IOUT=1mA→200mA VOUT=3.3V, VIN=1.8V, IOUT=200mA→1mA VOUT VOUT ILx ILx IOUT IOUT XC9131x05C (1.2MHz, PWM) XC9131x05C (1.2MHz, PWM) VOUT:100mV/div, ILx:200mA/div, IOUT:200mA/div, Time:50μs/div VOUT:100mV/div, ILx:200mA/div, IOUT:200mA/div, Time:50μs/div L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=560kΩ, RFB2=100kΩ, CFB=10pF RFB1=560kΩ, RFB2=100kΩ, CFB=10pF 23/28 XC9131 series is Discontinued. XC9131 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (24) Load Transient Response (Continued) VOUT=5.0V, VIN=3.7V, IOUT=1mA→300mA VOUT=5.0V, VIN=3.7V, IOUT=300mA→1mA VOUT VOUT ILx ILx IOUT IOUT XC9131x05C(1.2MHz,PWM/PFM) XC9131x05C(1.2MHz,PWM/PFM) VOUT:100mV/div,ILx:200mA/div,IOUT:300mA/div,Time:50μs/div VOUT:100mV/div, ILx:500mA/div, IOUT:300mA/div, Time:1ms/div L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=270kΩ, RFB2=30kΩ, CFB=10pF RFB1=270kΩ, RFB2=30kΩ, CFB=10pF VOUT=5.0V, VIN=3.7V, IOUT=100mA→500mA VOUT=5.0V, VIN=3.7V, IOUT=500mA→100mA VOUT VOUT ILx ILx IOUT IOUT 24/28 XC9131x05C(1.2MHz,PWM) XC9131x05C(1.2MHz,PWM) VOUT:100mV/div, ILx:500mA/div, IOUT:400mA/div, Time:50μs/div VOUT:100mV/div, ILx:500mA/div, IOUT:400mA/div, Time:50μs/div L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) L=4.7μH(LTF5022-LC), CL=20μF(LMK212BJ106KG*2) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) CIN=10μF(LMK212BJ106KG), CDD=0.47μF(EMK107BJ474KA) RFB1=270kΩ, RFB2=30kΩ, CFB=10pF RFB1=270kΩ, RFB2=30kΩ, CFB=10pF XC9131 series is Discontinued. XC9131 Series ■PACKAGING INFORMATION ●USP-10B 25/28 XC9131 series is Discontinued. XC9131 Series ■PACKAGING INFORMATION (Continued) Reference Pattern Layout 1.50 0.45 0.20 1.45 1.10 0.70 0.35 0.25 0.075 0.30 0.025 0.475 0.025 0.25 26/28 0.40 1.45 1.10 0.70 0.075 0.30 0.10 0.55 0.55 1.05 1.05 0.35 0.475 0.025 0.20 Reference Metal Mask Design 1.50 1.05 1.05 0.80 0.80 0.20 0.20 0.25 0.225 0.125 0.125 0.125 0.225 0.25 0.125 0.125 0.125 1.25 1.25 1.35 1.35 0.025 0.45 ●USP-10B 0.10 ●USP-10B 0.15 0.15 XC9131 XC9131 series is Discontinued. Series ■MARKING RULE ●USP-10B 2 9 MARK PRODUCT SERIES 3 3 XC9131******-G 4 ① ② ③ 10 ④ ⑤ ⑥ ① represents product series 1 8 7 6 5 USP-10B (TOP VIEW) ② represents a type of DC/DC converters MARK ITEM DESCRIPTION PRODUCT SERIES F Output voltage externally set-up(FB) With CL Auto Discharge XC9131F*****-G H Output voltage externally set-up(FB) Without CL Auto Discharge XC9131H*****-G ③④ represents reference voltage and oscillation frequency MARK ③ ④ 5 Ｃ VOLTAGE(V） OSCILLATION FREQUENCY(kHz) PEODUCT SERIES 0.5 1200 XC9131*05C**-G ⑤⑥ represents production lot number 01～09, 0A～0Z, 11～9Z, A1～A9, AA～Z9, ZA～ZZ in order. (G, I, J, O, Q, W excluded) *No character inversion used. 27/28 XC9131 series is Discontinued. XC9131 Series 1. The products 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. We assume no responsibility for any infringement of patents, patent rights, or other rights arising from the use of any information and circuitry in this datasheet. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this datasheet. 4. The products in this datasheet are not developed, designed, or approved for use with such equipment whose failure of malfunction can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. Atomic energy; aerospace; transport; combustion and associated safety equipment thereof.) 5. Please use the products listed in this datasheet within the specified ranges. Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. We assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this datasheet may be copied or reproduced without the prior permission of TOREX SEMICONDUCTOR LTD. 28/28