General Description

The RT9275 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.

Features

• 1V Low Start-up Input Voltage at 1mA Load

• Zero Shutdown Mode Supply Current

• 90 Efficiency

• 400kHz Switching Frequency

• Providing Flexibility for Using Internal and External Power Switches

• Build Soft-Start function internally

• Under-Voltage Protection

• Small SOT-23-6 Package

• RoHS Compliant and 100 Lead (Pb)-Free

Applications

• PDA

• DSC

• LCD Panel

• RF-Tags

• MP3

• Portable Instrument

• Wireless Equipment