RT8203GA

Description：IC REG CTRLR BUCK 28SSOP
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR)

SKU:725057e36988 Category: DC DC Switching Controllers Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK 28SSOP
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：4
Output Phases：1
Voltage - Supply (Vcc/Vdd)：7V ~ 24V
Frequency - Switching：200kHz, 300kHz, 400kHz, 500kHz
Duty Cycle (Max)：80%, 84%, 88%, 92%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable, On Time Control, Phase Control, Power Good
Operating Temperature：-10°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：28-SSOP (0.154", 3.90mm Width)
Supplier Device Package：28-SSOP
Grade：-
Qualification：-

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RT8203GA

Overview

The RT8203GA is a synchronous buck controller manufactured by Richtek USA Inc. It operates with an input voltage range of 4.5V to 28V and supports output voltages adjustable from 0.6V to 12V. The device integrates a high-side N-channel MOSFET driver, eliminating the need for external bootstrap components. It features a fixed 500kHz switching frequency and offers programmable soft-start time. The IC is housed in a 28-SSOP package and is rated for operation within a temperature range of -10°C to 85°C.

Feature Summary

Integrates a high-side N-channel MOSFET driver for simplified design
Supports wide input voltage range suitable for various power rails
Features programmable soft-start to limit inrush current
Includes comprehensive protection mechanisms for system reliability

Applications

Point-of-load regulation for industrial equipment
Power supplies for communication infrastructure
Voltage regulation for consumer electronics
Adapter-based power systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific packaging variants. Review the latest datasheet for any recent engineering changes or pinout updates before finalizing procurement specifications.

Selection Notes

Select this controller when designing synchronous buck converters requiring integrated high-side drive. Ensure external MOSFETs are rated for the target voltage and current levels. Verify that the required output voltage falls within the 0.6V to 12V adjustable range. Consider thermal management requirements for the SSOP package in enclosed environments.

Part Context

This component belongs to Richtek's family of DC-DC switching controllers designed for efficient power conversion. It serves as a core element in step-down power supply designs, providing control signals for external power stages. The product line targets applications demanding high efficiency and compact form factors.