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RT9201 - High Efficiency PWM Step-Down DC-DC Converter

Description

The RT9201 is a high-efficiency pulse-width-modulated (PWM) step-down DC-DC converter.

Features

  • include soft start, 0.8V internal reference voltage with 1% accuracy, over temperature protection, and over current protection. DFN-10L 3x3 EN SS FB NC GND 1 2 3 4 5 Features l l l l l l l l l +2.5V to +5.5V Input Range Adjustable Output From 0.85V to VIN 600mA Output Current 95% Efficiency No Schottky Diode Required 85µA Quiescent Current 100% Duty Cycle in Low-Dropout Mode 800kHz Fixed-Frequency PWM Operation Pulse-skipping Mode Operation During Light Ioad.

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Datasheet Details

Part number RT9201
Manufacturer Richtek Technology
File Size 189.19 KB
Description High Efficiency PWM Step-Down DC-DC Converter
Datasheet download datasheet RT9201 Datasheet

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Full PDF Text Transcription

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Preliminary RT9201 High Efficiency PWM Step-Down DC-DC Converter General Description The RT9201 is a high-efficiency pulse-width-modulated (PWM) step-down DC-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. Four operational modes are available: PWM, PSM, LowDropout and shut-down modes. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application.
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