RT8204LZQW

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

SKU:16e4cdccc039 Category: Voltage Regulators - Linear + Switching Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK PWM WQFN-16
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Topology：Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
Number of Outputs：2
Frequency - Switching：-
Voltage/Current - Output 1：Controller, Controller, 0.75V ~ 3.3V
Voltage/Current - Output 2：Controller, Controller, 0.75V ~ 5V
Voltage/Current - Output 3：-
w/LED Driver：No
w/Supervisor：No
w/Sequencer：No
Voltage - Supply：4.5V ~ 26V
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WFQFN Exposed Pad
Supplier Device Package：16-WQFN (3x3)
Grade：-
Qualification：-

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RT8204LZQW

Overview

The RT8204LZQW is a single synchronous buck PWM controller with an integrated LDO, designed for notebook and embedded low-voltage power rails. It operates within an input voltage range of 3 to 26 V (or 4.5V~26V per some sources) and provides high efficiency, excellent transient response, and high DC output accuracy. The device steps down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies. It features a switching frequency of 200 kHz and delivers an adjustable output voltage from 750 mV to 3.3 V with an output current capability of 2 mA. Housed in a compact 16-pin WQFN EP package.

Feature Summary

Integrates a synchronous buck PWM controller with an LDO for combined switching and linear regulation.
Provides high efficiency and excellent transient response for demanding processor power applications.
Ensures high DC output accuracy suitable for sensitive CPU core and chipset supplies.
Designed for compact designs using a 16-pin WQFN EP package.

Applications

Generating low voltage CPU core supplies in notebook computers.
Powering I/O circuits in embedded systems.
Supplying chipset RAM in laptop architectures.

Procurement Notes

Verify the specific suffix 'LZQW' against the manufacturer's official datasheet to confirm pinout, thermal pad configuration, and RoHS compliance status. Ensure the selected component matches the required input voltage range and output current specifications for your target application before ordering.

Selection Notes

Select this component when a combined synchronous buck and LDO solution is required for space-constrained notebook or embedded designs. Consider the 200 kHz switching frequency and 16-pin WQFN package constraints. Verify that the 2 mA output current meets the load requirements for the specific rail being powered.

Part Context

The RT8204LZQW belongs to Richtek's family of DC/DC controllers tailored for portable electronics. It complements other buck controllers by offering an integrated LDO, simplifying the design for multi-rail power distribution in notebooks. The device addresses the need for efficient battery-powered operation while maintaining precise voltage regulation for logic components.

Replacement Considerations

Check for direct pin-to-pin replacements within the RT8204 series or similar Richtek single synchronous buck controllers with integrated LDOs. Ensure any substitute maintains the 16-pin WQFN footprint and compatible input/output voltage ranges.