A7523 - AiT Semiconductor

A7523 SUPER-SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR

The A7523 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external c.

Features

 0.8V（Iout=1mA） Low Start-up Input Voltage
 500kHz Fixed Switching Frequency
 90% Efficiency
 High Supply Capability to Deliver 3.3V 300mA with1 Alkaline Cell or Deliver 5V 800mA with 1 Li-ion Cell
 14μA Quiescent (Switch-off) Supply Current
 0.01μA Shutdown Mode Supply Current
 Providing Flexibility for Using Internal and External Power Switches
 Output voltage: Settable to between 2.0V to 6.0V ,accuracy of 2%
 Available in SOT-26 package. APPLICATION
 MP3
 PDA
 DSC
 LCD Panel
 RF-Tags
 Portable Instrument
 Wireless Equipment REV1.0 - DEC 2011 RELEASED - -1- AiT Semiconduc.