TPS62357YZGR

Overview

The TPS62357YZGR is a fixed-output synchronous step-down DC/DC converter manufactured by Texas Instruments. It operates with an input voltage range of 2.7 V to 5.5 V and provides a fixed output voltage of 1.8 V. The device supports a maximum output current of 800 mA and utilizes a fixed switching frequency of 3 MHz. It features a low quiescent current of 28 µA and functions within an operating temperature range of -40°C to +85°C. The component is housed in a DSBGA-12 package.

Feature Summary

• Integrated synchronous buck topology for high efficiency
• Fixed 3 MHz switching frequency enables compact passive design
• Low quiescent current for extended battery life
• Compact DSBGA-12 footprint for space-constrained applications

Applications

• Portable consumer electronics power management
• Battery-powered embedded systems
• General-purpose point-of-load regulation

Procurement Notes

Verify the specific suffix 'YZGR' against the manufacturer's official datasheet to confirm the reel quantity and tape-and-reel packaging specifications. Ensure the fixed 1.8 V output voltage aligns with the target load requirements, as this variant does not offer adjustable output options. Cross-reference the DSBGA-12 package dimensions with PCB layout guidelines to ensure proper thermal and mechanical fit during integration.

Selection Notes

Select this component when a fixed 1.8 V output is required from a single-cell lithium-ion or similar 2.7 V to 5.5 V source. The 3 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 800 mA current limit for moderate load applications. Verify that the fixed output voltage meets the system rail requirements without needing external feedback resistors.

Part Context

This part belongs to the TPS6235x family of high-efficiency synchronous buck converters from Texas Instruments. These devices are designed for portable applications requiring small solution size and high efficiency. The family shares common architectural features such as integrated power switches and fixed switching frequencies, differing primarily in output voltage configurations and package options.

Replacement Considerations

Consult the manufacturer's replacement guide for direct pin-to-pin compatible alternatives within the TPS6235x series. Verify that substitute parts maintain the same 1.8 V fixed output, 800 mA current rating, and DSBGA-12 package to ensure board compatibility.