G5910 Global Mixed-mode Technology Inc. High-Efficiency White LED Charge Pump Features General Description Input Range： ：2.7V to 5V Quiescent Current: 90µA Regulated 5V ±4% Output 5V Output Current 90mA with VIN ≧ 3.0V 40mA with VIN ≧ 2.7V High Frequency 1MHz Operation Shutdown Mode Draws Less than 1µA Shot-Circuit/Over-temperature Protection TDFN2X2-6, SOT-23-6 and TSOT-23-6 Package The G5910 Charge-Pump is a switched-capacitor voltage converter that delivers a regulated output. The external inductor is not required for operation. Using small capacitors, the G5910 can deliver up to 90mA (@VIN=3V) to the voltage-regulated output. The G5910 features high efficiency over a large portion of its load range making this device ideal for battery-powered applications. The combination of few external components and small package size keeps the total converter board area to a minimum in space-restricted applications. The G5910 contains a thermal management circuit to protect the device under continuous output short circuit conditions. Applications Portable Communication Devices Cellular Phones PDA Handheld Electronics Digital Cameras LED/Display Back Light Driver LED for Camera Flash The G5910 is available in a surface mount TDFN2X2-6, SOT-23-6 and TSOT-23-6 package. Ordering Information ORDER NUMBER MARKING VOLTAGE TEMP. RANGE PACKAGE (Green) G5910-45RBU G5910-50RBU G5910-45TBU G5910-50TBU G5910-45TPU G5910-50TPU 591A 591B 5911x 5910x 5911x 5910x 4.5V 5.0V 4.5V 5.0V 4.5V 5.0V -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C TDFN2X2-6 TDFN2X2-6 SOT-23-6 SOT-23-6 TSOT-23-6 TSOT-23-6 Note: RB: TDFN2X2-6 U: Tape & Reel TB: SOT-23-6 TP: TSOT-23-6 Pin Configuration G5910 G5910 SHDN 1 GND 2 VOUT 3 Thermal Pad 6 C- 5 VIN 4 C+ TDFN2X2-6 VOUT 1 6 C+ GND 2 5 VIN SHDN 3 4 C- SOT-23-6/TSOT-23-6 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.9 Jul 06, 2011 1