RT8202GQW

Description：IC REG CTRLR BUCK 16WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR)

SKU:66e18af7d74c Category: DC DC Switching Controllers Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK 16WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：4.5V ~ 5.5V
Frequency - Switching：-
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable, On Time Control, Phase Control, Power Good
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WQFN Exposed Pad
Supplier Device Package：16-WQFN (4x4)
Grade：-
Qualification：-

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RT8202GQW

Overview

The RT8202GQW is a PWM controller designed for high-efficiency synchronous buck applications. It supports an input voltage range of 4.5V to 26V, suitable for stepping down high-voltage batteries. The device features resistor-programmable current limit via low-side RDS(ON) sense or external sense resistors. It provides adjustable output voltages from 0.75V to 3.3V with 1% accuracy over line and load conditions. Key control features include quick load step response within 100ns, over/under voltage protection, and two-step current limiting during soft-start.

Feature Summary

Resistor programmable frequency and current limit using low-side RDS(ON) sense or sense resistor
Quick load step response capability within 100ns for improved transient performance
Integrated power good indicator and over/under voltage protection mechanisms
Capable of driving large synchronous-rectifier FETs for efficient power conversion

Applications

Notebook computer main power supplies
CPU core voltage regulation
Chipset and RAM supply generation

Procurement Notes

Verify the specific suffix GQW against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure compatibility with RoHS3 compliance requirements and check moisture sensitivity level (MSL) ratings before storage and reflow soldering processes. Confirm availability of supporting ECAD models for PCB layout integration.

Selection Notes

Select this component when designing systems requiring high efficiency and fast transient response from battery-powered sources. The wide input voltage range accommodates various battery configurations. Consider the need for external components for frequency programming and current sensing based on the desired accuracy and lossless limit implementation.

Part Context

This part belongs to the Richtek RT820x series of PWM controllers, specifically optimized for notebook computer applications. It serves as a primary switching controller for generating low-voltage rails required by processors and chipsets. The technology focuses on delivering high DC output accuracy while managing thermal performance through efficient synchronous rectification control.