TPS546B24ARVFR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS546B24ARVFR is a synchronous buck converter from the SWIFT family, manufactured by Texas Instruments. It supports an input voltage range of 2.95 V to 18 V and delivers up to 20 A of output current. The device features adjustable output voltage from 0.6 V to 5.5 V with a fixed internal reference of 0.6 V. It operates at a switching frequency between 225 kHz and 1.5 MHz and supports stacking up to four units in parallel for higher current capacity. The component utilizes a 40-LQFN package (7x5 mm) with exposed thermal pad and functions within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports parallel operation of up to four devices for increased current capability
• Integrates PMBus interface for digital control and monitoring
• Utilizes Texas Instruments SWIFT topology for compact design

Voltage Regulators - DC DC Switching Regulators Applications

• Central processing unit (CPU) power delivery
• Field programmable gate array (FPGA) core voltage regulation
• Telecommunications base station power systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix RVFR against the manufacturer datasheet to confirm pinout and packaging details. Ensure compatibility with PMBus communication protocols if digital control is required. Check for moisture sensitivity level requirements during storage and handling. Confirm that the application circuit supports the specified input voltage range and thermal dissipation needs for the 40-LQFN package.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high current density and digital control are required. The SWIFT architecture allows for smaller passive components compared to traditional controllers. Consider the stackable feature if system power demands exceed 20 A. Verify that the PCB layout can accommodate the 40-pin LQFN footprint and thermal pad requirements for adequate heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS546D24A series, which includes variants like TPS546C20A and TPS546B24A. These converters share the SWIFT technology and PMBus capabilities but differ in current ratings and specific electrical characteristics. The TPS546B24ARVFR specifically targets the 20 A output class within this high-performance buck converter lineup.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include TPS546B24A and TPS546D24A. Verify pin-to-pin compatibility and electrical specifications before substitution.