RS53319LR

$7.09

Description：IC REG BUCK PROG 20A 21QFN
Series：-
Mfr：Reed Semiconductor Corp.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:57354e844b26 Category: Voltage Regulators - DC DC Switching Regulators Brand: Reed Semiconductor Corp.

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Product introduction

RS53319LR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Reed Semiconductor Corp.. Its product description is IC REG BUCK PROG 20A 21QFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for RS53319LR

Description：IC REG BUCK PROG 20A 21QFN
Series：-
Mfr：Reed Semiconductor Corp.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：2.85V
Voltage - Input (Max)：16V
Voltage - Output (Min/Fixed)：0.6V
Voltage - Output (Max)：5.5V
Current - Output：20A
Frequency - Switching：600kHz, 800kHz, 1MHz ~ 2.2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：21-QFN
Supplier Device Package：21-QFN (3x4)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for RS53319LR

RS53319LR

Voltage Regulators - DC DC Switching Regulators Overview

The RS53319LR is a synchronous step-down converter IC from Reed Semiconductor Corp. It features an input voltage range of 2.85V to 16V and delivers a continuous output current of up to 20A. The device offers positive adjustable output starting from 0.6V with a single output configuration. Switching frequencies are programmable between 600kHz, 800kHz, and 1MHz to 2.2MHz. It utilizes Robust Constant On Time (RCOTM) control for fast transient response and operates within a temperature range of -40°C to 125°C in a 21-QFN surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Robust Constant On Time (RCOTM) control architecture enabling fast transient response
Programmable switching frequency options including 600kHz, 800kHz, and 1MHz to 2.2MHz ranges
Synchronous rectification design for high efficiency
Wide input voltage tolerance supporting 2.85V to 16V operation

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load (POL) regulation in industrial systems
Power distribution networks requiring high current density
Embedded computing platforms needing adjustable voltage rails
Telecommunications infrastructure power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LR' against the manufacturer's official datasheet to confirm the exact switching frequency bin and thermal rating. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference the marking code 'R33' with the latest documentation to prevent substitution errors during assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 20A synchronous buck converter is required with flexible switching frequency tuning. The RCOTM control makes it suitable for applications demanding rapid load transient handling. Consider the 21-QFN package for space-constrained designs. Validate that the 0.6V minimum output meets the target load requirements before finalizing the design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the RS53319 series of high-power density synchronous buck converters. It shares architectural similarities with variants like the RS53317HT but differs in output current capacity and pin configuration. The series targets modern power management needs in compact form factors, offering integrated solutions for complex voltage regulation tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing PCB footprints and control loop compensation if considering alternative manufacturers. Consult the manufacturer for updated replacement recommendations.

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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.