CJ9107B50T5

JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD Synchronous Step-Up DC/DC Converter with PFM Control CJ9107 Series  INTRODUCTION The CJ9107 Series is a Synchronous step-up DC/DC Converter with PFM Control. With the CJ9107  FEATURES  External parts: Coil, capacitor  Output voltage: Settable to between 2.1V Series, a step-up to 5.5 V in 0.1 V steps switching DC/DC converter can be configured  Maximum Oscillation frequency:300KHz by using an external coil, capacitor. The  Accuracy of ±2% built-in MOSFET is turned off by a protection  High efficiency：95% circuit when the voltage at the LX pin exceeds the limit to prevent it from being damaged.  APPLICATIONS  Digital cameras  Cameras, video equipment,  Electronic notebooks and PDAs  Communications equipment  Portable CD/MD players  Power supply for microcomputers  BLOCK DIAGRAM „ DEVICE INFORMATION: CJ9107 ①②③④ LX VOUT Current Limiting comparator DESIGNATOR SYMBOL DESCRIPTION A Standard LX B With shutdown, LX ① buffer EN Chip Enable PFM control OSC Error Amplifier ②③ ref VSS ④ www.jscj-elec.com 1 Integer T3/T5 K R L Output Voltage （2.1～5.5） e.g.：3.0V=②:3; ③:0 Package：SOT-23-3/5L Package：SOT-23 Package：SOT-89-3L Package：TO-92 Rev - 1.0 Pin$onfiguration SOT-23 SOT-23-3L Top view SOT-23-5L Top view Table 1 SCJ9107A Series（SOT-23-3L/SOT-23 PKG） PIN NO. PIN NAME FUNCTION 1 V OUT Output voltage pin 2 V SS GND pin 3 LX External inductor connection pin Table 2 PIN NO. SCJ9107B Series（SOT-23-5L PKG） PIN NAME FUNCTION 1 EN Shutdown pin “H”: Normal operation “L”: Step-up stopped 2 V OUT Output voltage pin 3 NC (N.C.) 4 V SS GND pin 5 LX External inductor connection pin SOT-89-3L Top view Table 3 SCJ9107A Series （SOT-89-3L PKG） PIN NO. PIN NAME FUNCTION 1 V SS GND pin 2 V OUT Output voltage pin 3 LX External inductor connection pin Table 4 SCJ9107A Series （TO-92 PKG） TO-92 Bottom view 1 2 3 www.jscj-elec.com PIN NO. PIN NAME FUNCTION 1 V SS GND pin 2 V OUT Output voltage pin 3 LX External inductor connection pin 2 Rev - 1.0 Electrical Characteristics  ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, Ta=25°C) SYMBOL RATINGS PARAMETER VOUT VOUT Pin Voltage VSS-0.3 ~ VSS+8 EN Pin Voltage EN VSS-0.3 ~ VSS+8 LX Pin Voltage VSS-0.3 ~ VSS+8 VLX LX Pin Current ILX 1000 SOT-23 250 SOT23-3/5L 250 Power PD Dissipation SOT-89-3L 500 TO-92  UNITS V V V mA mW mW mW 500 mW Operating Temperature Topr -40 ~+85 °C Storage Temperature Tstg -40 ~+125 °C Soldering Temperature & Time Tsolder 260°C, 10s ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta=25°C) PARAMETER SYNBOL CONDITIONS MIN TYP MAX UNITS Output Voltage VOUT － VOUT(S) ×0.98 VOUT VOUT(S) ×1.02 V Input Voltage VIN － － － 5 V Operation Start Voltage VST1 IOUT= 1 mA － － 0.9 V Input Current At No Load ISS VIN=1.8V,VOUT=3.0V － 15 - µA Current Consumption 2 ISS2 VOUT=VOUT＋0.5 V － 6 10 µA Current Consumption During Shutdown ISSS VEN = 0 V － － 1.0 µA Maximum Oscillation Frequency fOSC Duty Ratio 1 Duty1 Efficiency EFFI Shutdown Pin Input Voltage Shutdown Pin Input Current VOUT= 0.95×VOUT， measure 300 waveform at LX pin VOUT= 0.95×VOUT， measure waveform at LX pin 70 78 KHz 85 90 % % VSH VOUT=0.95×VOUT， judge oscillation at LX pin 0.75 － － V VSL1 VOUT= 0.95×VOUT， judge stop at LX pin － － 0.3 V ISH VEN＝6V -0.1 － 0.1 µA ISL VEN＝0V -0.1 － 0.1 µA Remark：VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output voltage. www.jscj-elec.com 3 Rev - 1.0 Typical Characteristics ■ STANDARD CIRCUITS Component: Inductor：47uH(Sumida) Capacitor：47uF/16V(Tantalum) 1、 SCJ9107A： 2、SCJ9107B： www.jscj-elec.com 4 Rev - 1.0 Typical Characteristics Cin=Cout=100uF L=47uH www.jscj-elec.com 5 Rev - 1.0 Synchronous Step-Up DC/DC Converter with PFM Control  SCJ9107 Series PACKAGE INFORMATION ● SOT-23 Symbol A A1 A2 b c D E E1 e e1 L L1 θ www.jscj-elec.com Dimensions In Millimeters Max. Min. 0.900 1.150 0.000 0.100 0.900 1.050 0.300 0.500 0.080 0.150 2.800 3.000 1.200 1.400 2.250 2.550 0.950 TYP. 1.800 2.000 0.550 REF. 0.300 0.500 0° 8° 6 Dimensions In Inches Min. Max. 0.035 0.045 0.000 0.004 0.035 0.041 0.012 0.020 0.003 0.006 0.110 0.118 0.047 0.055 0.089 0.100 0.037 TYP. 0.071 0.079 0.022 REF. 0.012 0.020 0° 8° Rev - 1.0 -3L 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 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 e 0.950(BSC) 0.116 0.037(BSC) e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8° -3L    www.jscj-elec.com 8 Rev - 1.0 SOT-23-5L Package Outline Dimensions Symbol Dimensions In Millimeters Min. Max. Dimensions In Inches Min. Max. A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 0.045 A2 1.050 1.150 0.041 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 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 e 0.116 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° SOT-23-5L Suggested Pad Layout www.jscj-elec.com 9 Rev - 1.0 SOT-89-3L Package Outline Dimensions Symbol Dimensions In Millimeters Min. Max. Dimensions In Inches Min. Max. A 1.400 1.600 0.055 0.063 b 0.320 0.520 0.013 0.197 b1 0.400 0.580 0.016 0.023 c 0.350 0.440 0.014 0.017 D 4.400 4.600 0.173 D1 1.550 REF E 2.300 2.600 0.091 E1 3.940 4.250 0.155 e L 1.200 0.167 0.118 TYP 3.000 TYP 0.900 0.102 0.060 TYP 1.500 TYP e1 0.181 0.061 REF 0.035 0.047 SOT-89-3L Suggested Pad Layout www.jscj-elec.com 10 Rev - 1.0  &9:"-.*&(  Symbol Dimensions In Millimeters Dimensions In Inches Min. Max. Min. Max. A 3.300 3.700 0.130 0.146 A1 1.100 1.400 0.043 0.055 b 0.380 0.550 0.015 0.022 c 0.360 0.510 0.014 0.020 D 4.400 4.700 0.173 0.185 D1 3.430 E 4.300 e 0.135 1.400 0.169 0.185 0.050 TYP 1.270 TYP e1 2.440 2.640 0.096 0.104 L 14.100 14.500 0.555 0.571 0.000 0.380 0.000 0.015 Ф 0.063 1.600 h &9:**"5 JSCJ www.jscj-elec.com JSCJ 11 Rev - 1.0