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.

Features

● 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

Applications

● Notebook Computers

● CPU Core Supply

● Chipset/RAM Supply as Low as 0.75V