General Description
The RT9201 is a high-efficiency pulse-width-modulated (PWM) step-downDC-DC converter. Capable of delivering 600mA output current over a wide input voltage range from 2.5 to 5.5V, the RT9201 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and handy-terminals.

FEATUREs
+2.5V to +5.5V Input Range
Adjustable Output From 0.85V to VIN
600mA Output Current
95%Efficiency
No Schottky Diode Required
85mA Quiescent Current
100% Duty Cycle in Low-Dropout Mode
800kHz Fixed-Frequency PWM Operation
Pulse-skipping Mode Operation During Light Ioad
RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONs
Cellular Telephones
Wireless Modems
Personal InformationAppliances
Portable Instruments
Distributed Power Systems
Battery-Powered Equipment (1 Li-Ion or 3NiMH/NiCd)