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