RT9202B Datasheet PDF (Single Synchronous Buck PWM DC-DC Controller)

RT9202B - Single Synchronous Buck PWM DC-DC Controller

Description

The RT9202B is a single power supply PWM DC-DC converter controller designed to drive N-MOSFET in a synchronous buck topology.

The IC integrates the control, output adjustment, monitoring and protection functions in a small 8-pin package.

Features

over current protection, over voltage protection, and under voltage lock-out. The output current is monitored by sensing the voltage drop across the MOSFET's RDS(ON), which eliminates the need for a current sensing resistor. Features l l l l l l l l l l l l Operate From 5V 0.8V Internal Reference Drive Two N-MOSFETs Voltage Mode PWM Control Fast Transient Response Fixed 300kHz Oscillator Frequency Full 0 to 100% Duty Cycle Internal Soft Start Adaptive Non-Overlapping Gate Driver Over-Current M.

Datasheet Details

Part number	RT9202B
Manufacturer	Richtek
File Size	223.20 KB
Description	Single Synchronous Buck PWM DC-DC Controller
Datasheet	RT9202B Datasheet
Additional preview pages of the RT9202B datasheet.

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Full PDF Text Transcription

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RT9202B Single Synchronous Buck PWM DC-DC Controller General Description The RT9202B is a single power supply PWM DC-DC converter controller designed to drive N-MOSFET in a synchronous buck topology. The IC integrates the control, output adjustment, monitoring and protection functions in a small 8-pin package. The RT9202B uses a low gain voltage mode PWM control for simple application design. An internal 0.8V reference allows the output voltage to be precisely regulated to low voltage requirement. A fixed 300kHz oscillator reduces the component size for saving board space. The RT9202B features over current protection, over voltage protection, and under voltage lock-out.

Published: Dec 26, 2013 |