LM2852XMXAX-2.5

Voltage Regulators - DC DC Switching Regulators Overview

The LM2852XMXAX-2.5 is a synchronous step-down switching voltage regulator manufactured by Texas Instruments, formerly National Semiconductor. It operates with an input voltage range of 2.85 V to 5.5 V and provides a fixed output of 2.5 V at up to 2 A. The device supports selectable switching frequencies of 500 kHz or 1.5 MHz. It features integrated power MOSFETs in a 14-pin HTSSOP package and includes thermal shutdown and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Selectable switching frequency for design flexibility
• Built-in thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics power supplies
• Embedded system voltage regulation
• Industrial control board power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments due to the acquisition of National Semiconductor. Confirm the specific suffix 'A' indicates the adjustable frequency pin configuration if required. Ensure the package matches the 14-HTSSOP outline. Check RoHS compliance status for the specific batch.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 2.5 V output is required from a single-cell lithium battery or USB source. The 2 A capacity suits moderate load applications. Choose between 500 kHz and 1.5 MHz based on inductor size constraints and EMI requirements. Verify that the input voltage remains within the 2.85 V minimum threshold during operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SIMPLE SWITCHER family of regulators. It replaces older discrete solutions by integrating the controller and power switches. The LM2852 series offers a compact alternative to linear regulators in battery-powered devices where efficiency is critical.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2852YMXAX-2.5/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the function of the 'A' suffix in the part number?

The 'A' suffix typically denotes a specific version of the device, often related to the frequency adjustment pin configuration or manufacturing lot variations.

Can the switching frequency be changed after manufacturing?

Yes, the LM2852 allows selection between 500 kHz and 1.5 MHz via an external resistor or pin connection, depending on the specific variant configuration.