RT8243CZQW

Description：IC REG CTRLR NOTEBK 2OUT 20WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Cut Tape (CT)

SKU:b8272bb7ae00 Category: Special Purpose Regulators Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR NOTEBK 2OUT 20WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Cut Tape (CT)
Applications：Controller, Notebook Power System
Voltage - Input：5.5V ~ 25V
Number of Outputs：2
Voltage - Output：2V ~ 5.5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-WFQFN Exposed Pad
Supplier Device Package：20-WQFN (3x3)
Grade：-

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RT8243CZQW

Overview

The RT8243CZQW is a dual step-down switching mode power supply controller designed for notebook computer main power systems. It operates with an input voltage range of 5.5V to 25V and provides two independent outputs adjustable from 2V to 5.5V. The device utilizes a 20-WQFN (3x3) package with an exposed pad for surface mount installation. It functions within a junction temperature range of -40°C to 85°C, supporting high-efficiency power conversion for portable computing applications.

Feature Summary

Dual output buck topology for main system power distribution
Integrated control logic for notebook power management
Wide input voltage compatibility for battery-powered platforms

Applications

Notebook computer main power supply controllers
Portable computing system power distribution units
Battery-operated electronic device power regulation

Procurement Notes

Verify the specific suffix 'C' against the manufacturer's current datasheet to confirm pinout and feature variations compared to other variants in the RT8243 family. Ensure the 20-WQFN (3x3) package dimensions match the target PCB footprint. Confirm availability status as product lifecycles may change without notice.

Selection Notes

Select this component when designing dual-rail power architectures for notebooks requiring inputs up to 25V. Evaluate thermal performance requirements given the compact WQFN package. Compare efficiency characteristics against single-output alternatives if only one rail is strictly necessary for the design.

Part Context

This part belongs to Richtek's RT8243 series of high-efficiency main power supply controllers specifically engineered for notebook computers. The series includes variants such as RT8243A and RT8243B, which share similar functional blocks but may differ in specific electrical parameters or packaging options. These controllers are integral to modern portable PC power management ICs.

Replacement Considerations

RT8243BZQW and RT8243AZQW are related variants within the same family. Verify datasheet differences regarding internal compensation or startup sequences before substitution.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.