Datasheet Summary
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2.25MHz 600mA Synchronous Step-Down Converter
General Description
The RT2657BQ is a high efficiency Pulse-WidthModulated (PWM) step-down DC/DC converter, capable of delivering 600mA output current over a wide input voltage range from 2.7V to 5.5V. The RT2657BQ is ideally suited for portable electronic devices that are powered from 1cell Li-ion battery or from other power sources such as cellular phones, PDAs, hand-held devices, game console and related accessories.
The internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical applications. The RT2657BQ enters Low Dropout Mode when...