RT8230AGQW

$1.38

Description：IC REG QD BUCK/LNR SYNC 20WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:393a028dd6da Category: Voltage Regulators - Linear + Switching Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG QD BUCK/LNR SYNC 20WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Topology：Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
Number of Outputs：4
Frequency - Switching：240kHz ~ 430kHz
Voltage/Current - Output 1：Controller
Voltage/Current - Output 2：Controller
Voltage/Current - Output 3：5V, 100mA
w/LED Driver：No
w/Supervisor：No
w/Sequencer：No
Voltage - Supply：5V ~ 25V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-WFQFN Exposed Pad
Supplier Device Package：20-WQFN (3x3)
Grade：-
Qualification：-

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RT8230AGQW

Overview

The RT8230AGQW is a dual-channel synchronous DC/DC step-down controller designed for battery-powered systems. It integrates two PWM controllers with adjustable output voltages of 2V to 5.5V (Channel 1) and 2V to 4V (Channel 2), alongside two fixed 100mA LDOs providing 5V and 3.3V outputs. Operating within a 5V to 25V input range, it utilizes constant current ripple control for 100ns load transient response without sense resistors. The device features ultrasonic mode operation above 25kHz to eliminate audio noise, diode-emulation mode for light-load efficiency, and internal soft-start/discharge capabilities.

Feature Summary

Integrates dual adjustable buck controllers with fixed 5V and 3.3V linear regulators
Employs constant current ripple control scheme eliminating the need for external sense resistors
Includes ultrasonic mode to maintain switching frequency above audible range for audio applications
Features internal power-up sequencing, soft-start, and soft-discharge functions

Applications

Notebook and sub-notebook computers
2-cell, 3-cell, and 4-cell Li+ battery-powered devices

Procurement Notes

Verify the specific suffix 'GQW' against the manufacturer's official datasheet to confirm package type and temperature rating. Ensure compatibility with WQFN-20L 3x3mm footprint requirements. Confirm RoHS compliance status through the latest documentation before procurement.

Selection Notes

Select this component when designing multi-rail power supplies for portable electronics requiring integrated buck and LDO regulation. It is suitable for systems needing precise voltage sequencing and low-noise operation in audio-sensitive environments. Consider the 100ns transient response capability for dynamic load applications.

Part Context

This part belongs to the RT8230A/B/C/D/E family of dual-channel synchronous DC/DC step-down controllers from Richtek Technology. These ICs are engineered to provide comprehensive power management solutions for portable devices, combining high-efficiency switching regulators with low-noise linear regulators in a compact package.