CJ9112T6A

JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD Low Quiescent Current, PFM/PWM Synchronous Boost Converter CJ9112T6  INTRODUCTION:  FEATURES: The CJ9112T6 is a compact, high-efficiency, fixed frequency, synchronous step-up DCDC converter.This device provides an easyto-use power supply solution for applications powered by either one-cell, two-cell or three-cell alkaline, NiCd, NiMH, one-cell LiIon or Li-Polymer batteries. A low-voltage technology allows the regulator to start up without high inrush current or output voltage overshoot from a low voltage input. High efficiency is accomplished by integrating the low-resistance N-Channel boost switch and P-Channel switch. All synchronous compensation and protection circuitry are integrated to minimize external components. CJ9112T6 consumes less than 14 µA from battery, while operating at no load (VOUT = 3.3V, VIN = 1.5V). The devices provide a true disconnect from input to output (CJ9112T6A) or an input-to-output bypass (CJ9112T6B), while in shutdown (EN = GND) state. Both options consume less than 0.6 µA from battery. Output voltage is set by a small external resistor divider.   Up to 96% Typical Efficiency 1.0A Typical Peak Input Current Limit: IOUT > 200mA@VOUT=3.3V, VIN=1.2V  IOUT > 400mA@VOUT=3.3V, VIN=2.4V  IOUT > 400mA@VOUT=5.0V, VIN=3.3V Low Device Quiescent Current: -Output Quiescent Current: < 4 µA typical, device is not switching (VOUT > VIN, excluding feedback divider current) -Input Sleep Current: 1 µA -No Load Input Current: 14 µA typical  Shutdown Current: 0.6 µA typical   Low Start-up Voltage: 0.82V, 1 mA load Low Operating Input Voltage: down to 0.65V  Adjustable Output Voltage Range: 1.8V to 5.5V  Maximum Input Voltage:  Automatic PFM/PWM Operation: VOUT < 5.5V -PWM Operation: 500 KHz -PFM Output Ripple: 150 mV typical  Feedback voltage: 1.215V  Inrush Current Limiting and Internal Soft Start (1 ms typical)  Selectable, Logic Controlled, Shutdown States: -True Load Disconnect Option (CJ9112T6A) -Input to Output Bypass Option (CJ9112T6B)  Over temperature Protection  Output Short Protection  APPLICATIONS：  One, Two and Three Cell Alkaline and NiMH/NiCd   Solar Cell Applications Personal Care and Medical Products  Bias for Status LEDs  Smartphones, MP3 Players, Digital Cameras PIN CONFIGURATION Portable Products  DEVICE INFORMATION: PART NUMBER CJ9112T6 www.jscj-elec.com PACKAGE SOT-23-6L  Remote controllers, Portable Instruments  Wireless Sensors  Bluetooth Headsets  +3.3V to +5.0V Distributed Power Supply 1 Rev. - 1.0 Electrical Characteristics  BLOCK DIAGRAM VOUT VIN Internal BIAS IZERO Direction Control SW EN GND .3V SOFT-START Gate Drive and Shutdown Control Logic Oscillator 0V ILIMIT ISENSE Slope Compensation S PWM/PFM Logic 1.215V EA CJ9112T6 www.jscj-elec.com VFB Block Diagram 3 Rev. - 1.0 Electrical Characteristics  ORDER INFORMATION PART NUMBER SHUTDOWN STATE CJ9112T6A True Load Disconnect CJ9112T6B Input to Output Bypass  PIN CONFIGURATION www.jscj-elec.com PIN NO. PIN NAME FUNCTION 1 SW Switch Node, Boost Inductor Input Pin 2 GND Ground Pin 3 V FB Feedback Voltage Pin 4 EN Enable Control Input Pin 5 V OUT Output Voltage Pin 6 V IN Input Voltage Pin 3 Rev. - 1.0 Electrical Characteristics  ABSOLUTE MAXIMUM RATINGS(1) (Unless otherwise specified, TA=25°C) PARAMETER Input Voltage SYMBOL RATINGS UNITS VIN -0.3~ 6 V -0.3~ 6 V -0.3~ 6 V -0.3~6 V 1000 mA (2) (2) SW Voltage CE,FB Voltage VOUT Voltage(2) (2) Ourput Current Bypass Mode Power Dissipation SOT23-6L PD 400 mW Operating Virtual Ambient Temperature Range TA -40~+85 ℃ Storage Temperature Range Tstg -40~+125 ℃ Lead Temperature (Soldering, 10 sec) Tsolder 260 ℃ Human Body Model (HBM) 4000 V Machine Model (MM) 400 V ESD rating (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods my affect device reliability. (2) All voltages are with respect to network ground terminal.  RECOMMENDED OPERATING CONDITIONS PARAMETER MIN. NOM. MAX. UNITS Supply voltage at VIN -0.3 - 6 V Output voltage at VOUT -0.3 - 6 V Operating free air temperature range, TA -40 - 85 ℃ www.jscj-elec.com 5 Rev. - 1.0 Electrical Characteristics  ELETRICAL CHARACTERISTICS VIN=1.5V, COUT=CIN=10μF, L=4.7μH, VOUT=3.3V, IOUT=0mA，Typical values are at TA=25℃, unless otherwise specified. PARAMETER SYMBOL CONDITIONS MIN. TYP. (1) MAX. UNITS Minimum Start-Up Voltage ILOAD 1mA VIN = - 0.82 - V Minimum Operating Voltage(2) ILOAD 1mA VIN = - 0.65 - V Input Voltage Range VIN 0.82 5.5 V Feedback Voltage VFB 1.179 1.215 1.251 V Feedback Input Bias Current IVFB - 10 - nA Output Voltage Adjust Range(3) VOUT VOUT≥VIN 5.5 V Output Voltage VOUT EN=0V Maximum Output Current IOUT VOUT Quiescent Current(4) IQOUT VIN Sleep Current(5) IQIN No load Input Current IINO Quiescent Current Shutdown IQSHDN 1.8 CJ9112T6A 0 CJ9112T6B VIN-0.6V V VIN=1.2V,VOUT = 2V 200 - VIN=2.4V,VOUT = 3.3V 400 - VIN=3.3V,VOUT = 5.0V IOUT=0mA, device is not switching, EN= VIN=4V, VOUT=5V 400 - - 4 8 μA IOUT=0mA, EN=VIN - 1 2.3 μA IOUT = 0mA, device is switching - 14 25 μA VOUT = 3.3V - 0.6 - μA mA (1) Typical numbers are at 25°C and represent the most likely norm. (2) Minimum VIN operation after start-up is only limited by the battery’s ability to provide the necessary power as it enters a deeply discharged state. (3) For VIN > VOUT, VOUT will not remain in regulation. (4) IQOUT is measured at VOUT, VOUT is external supplied for VOUT > VIN (device is not switching) (5) IQIN is measured at VIN pin during Sleep period, no load. Determined by characterization, not production tested. www.jscj-elec.com 6 Rev. - 1.0 Electrical Characteristics  ELETRICAL CHARACTERISTICS VIN=1.5V, COUT=CIN=10μF, L=4.7μH, VOUT=3.3V, IOUT=0mA，Typical values are at TA=25℃, unless otherwise specified. PARAMETER SYMBOL CONDITIONS MIN. TYP. (1) MAX. UNITS NMOS Switch Leakage INLK VIN=VSW=5V, VOUT =5.5V, EN=VFB=GND - 0.15 - μA PMOS Switch Leakage IPLK VIN=VSW=GND, VOUT=5.5V - 0.15 - μA NMOS Switch On Resistance RDS(ON)N VOUT = 3.3V, ISW=100mA - 0.25 - Ω PMOS Switch On Resistance RDS(ON)P VOUT = 3.3V ISW=100mA - 0.5 - Ω NMOS Peak Switch Current Limit(1) IN(MAX) - 1 - A VOUT Accuracy(2) VOUT% -3 - +3 % Switching Frequency fSW EN Input Logic High EN Input Logic Low EN Input Leakage Current Line Regulation Load Regulation 20 % of VIN - 5 - nA -0.4 0.3 0.4 %/V -1.5 0.1 1.5 % 87 89 91 % EN Low to High 90% of VOUT - 1 - ms IOUT==20mA VIN=1.4V - 160 - ℃ - 20 - ℃ VEN=5V IOUT=1mA ∆VOUT 1.5V≤VIN≤2.8V VOUT ∆VIN IOUT=50mA Soft Start Time(1) tss TSD % of VIN - IENLK ∆VOUT VOUT KHz - 70 - IOUT=1mA DCMAX Die Temperature Hysteresis 500 VIH VIL Maximum Duty Cycle(1) Thermal Shutdown Die Temperature VIN=1.5V 25mA≤IOUT=≤100mA VIN=1.5V TSDHY (1) Determined by characterization, not production tested. (2) Includes Line and Load Regulation www.jscj-elec.com 7 Rev. - 1.0 Typical Characteristics  TYPICAL APPLICATION CIRCUITS L1 4.7μH + SINGLE AA CELL C1 4.7μF SW VIN CJ9112T6 OFF ON VOUT 3.3V 100mA VOUT R1 1.72M C2 10μF VFB EN R2 1M GND Circuit 1 Use a Schottky diode if the converter output voltage is 4.5V or greater. L1 4.7μH + LITUIUM CELL C1 4.7μF SW CJ9112T6 OFF ON VOUT 5.0V 250mA VOUT VIN R1 3.1M VFB EN GND C2 10μF R2 1M Circuit 2 www.jscj-elec.com 8 Rev. - 1.0 Typical Characteristics (TA=25℃, unless otherwise specified) www.jscj-elec.com 9 Rev. - 1.0 SOT-23-6L Package Outline Dimensions Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 2.650 2.950 0.104 0.116 E1 1.500 1.700 0.059 0.067 e 0.037(BSC) 0.950(BSC) e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8° 627/6XJJHVWHG3DG/D\RXW NOTICE JSCJ reserves the right to make modifications,enhancements,improvements,corrections or other changes without further notice to any product herein. JSCJ does not assume any liability arising out of the application or use of any product described herein. www.jscj-elec.com 10 Rev. - 1.0