P4GE-MX Datasheet Motherboard Manual

Manufacturer: ASUS

Overview: RT8202/A/B Single Synchronous Buck Controller General.

Datasheet Details

Part number	P4GE-MX
Manufacturer	ASUS
File Size	2.48 MB
Description	Motherboard Manual
Datasheet	P4GE-MX-ASUS.pdf

General Description

The RT8202/A/B PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers.

The constant on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency.

The RT8202/A/B achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs.

Key Features

z z Ultra-High Efficiency Resistor Programmable Current Limit by Low Side RDS(ON) Sense (Lossless Limit) or Sense Resistor (High Accuracy) Quick Load Step Response within 100ns 1% VOUT Accuracy over Line and Load Adjustable 0.75V to 3.3V Output Range 4.5V to 26V Battery Input Range Resistor Programmable Frequency Over/Under Voltage Protection 2 Steps Current Limit During Soft-Start Drives Large Synchronous-Rectifier FETs Power Good Indicator RoHS Compliant and 100% Lead (Pb)-Free z z z z z z z.

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