AIC3643的特性及应用

AIC3643的特性及应用

Built-in OVP White LED Step-Up Converter Download Complete Datasheet PDF

FEATURES
Built-In Open Circuit ProtecTIon
Over Voltage ProtecTIon
Efficiency Up to 83% at VIN=4.2V, 3LEDs, ILED=20mA
1.2MHz Fixed Switching Frequency
Drives Up to 5LEDs in series
2.5V to 5.5V Input Voltage
Low Supply Current: 150冚A
Matches LED Current
Requires TIny Inductor and Capacitors
TSOT-23-6, and SOT-23-6 Packages

APPLICATIONS
Cellular Phones
PDAs
DSCs
Handheld Devices
White LED Display Backlighting
DESCRIPTION

AIC3643 is a step-up PWM converter, which includes an internal N-channel MOSFET switch for high efficiency. The high switching frequency, 1.2MHz, allows the use of tiny external components.

AIC3643 is available in a space-saving TSOT-23-6, and SOT-23-6 packages.

 AIC3643 datasheet,pdf