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RT8009 - High Efficiency PWM Step-Down DC/DC Converter

Datasheet Summary

Features

  • The RT8009 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 RT8009 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. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky.

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Datasheet Details

Part number RT8009
Manufacturer Richtek
File Size 237.01 KB
Description High Efficiency PWM Step-Down DC/DC Converter
Datasheet download datasheet RT8009 Datasheet
Additional preview pages of the RT8009 datasheet.

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Full PDF Text Transcription

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RT8009 1.25MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter General Description Features The RT8009 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 RT8009 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. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application. The RT8009 automatically turns off the synchronous rectifier while the inductor current is low and enters discontinuous PWM mode.
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