TPS54120RGYT

Overview

The TPS54120RGYT is a dual-output power management integrated circuit from Texas Instruments, combining one step-down switching regulator and one low-dropout linear regulator. It operates with an input voltage range of 2.2V to 17V. Both outputs provide adjustable voltages from 0.8V to 6V with a maximum current capacity of 1A each. The device features a programmable switching frequency ranging from 200kHz to 1.2MHz. It is housed in a 24-VQFN package measuring 5.5x3.5mm and supports an operating temperature range of -40°C to 125°C.

Feature Summary

• Integrates a synchronous buck converter and an LDO for efficient dual-rail power generation
• Features programmable switching frequency to optimize efficiency and external component size
• Includes built-in sequencing control for coordinated output ramp-up

Applications

• Power supply solutions for Xilinx FPGAs and CPLDs
• Embedded systems requiring simultaneous digital and analog voltage rails
• Portable electronics with space-constrained power architectures

Procurement Notes

Verify the specific suffix RGYT corresponds to the 24-VQFN (5.5x3.5) package when sourcing. Confirm that the ordering part number matches the required tape and reel configuration for automated assembly processes. Ensure compatibility with the intended thermal pad soldering requirements for the exposed pad QFN package.

Selection Notes

Select this component when a compact solution is needed to generate two distinct voltage rails from a single input source. It is suitable for designs where the combined current demand does not exceed 1A per rail. Consider the thermal performance of the 24-VQFN package relative to the expected ambient temperature and load conditions.

Part Context

This device belongs to the TPS54120 family of PMICs designed primarily for powering complex programmable logic devices. It simplifies board layout by integrating both switching and linear regulation stages into a single small footprint, reducing the bill of materials compared to using discrete components for each rail.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.