LM2852XMXA-1.5

Voltage Regulators - DC DC Switching Regulators Overview

The LM2852XMXA-1.5 is a fixed-output step-down switching regulator from Texas Instruments, designed for high-efficiency power conversion in portable applications. It integrates a 0.4-ohm N-channel MOSFET switch and operates with an input voltage range of 2.7V to 6V. The device provides a fixed 1.5V output with a maximum load current of 3A. It features adjustable soft-start, cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout. Operating at a fixed frequency of 1.2MHz, it utilizes a small external inductor and capacitor network.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a low-on-resistance N-channel MOSFET switch for efficient power handling
• Includes comprehensive protection mechanisms such as thermal shutdown and current limiting
• Supports wide input voltage ranges suitable for single-cell lithium-ion battery operation
• Utilizes compact surface-mount packaging to minimize board space requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics powered by single-cell lithium-ion batteries
• Cellular phones and personal digital assistants
• Wireless LAN devices and Bluetooth modules
• Personal media players and handheld gaming consoles

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'XMXA' corresponds to the correct tape-and-reel packaging configuration and temperature grade. Confirm that the fixed 1.5V output matches the target system requirement, as this variant does not support adjustable output voltages. Ensure compatibility with the required operating ambient temperature range specified in the official datasheet before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V output is required within a 2.7V to 6V input range. It is suitable for designs needing up to 3A load current with minimal external components. Consider the 1.2MHz switching frequency for smaller passive component sizes compared to lower-frequency alternatives. Verify that the thermal performance of the chosen package meets the application's heat dissipation needs under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2852 family of synchronous buck converters. It shares architectural similarities with other members but differs in its fixed output voltage setting. The XMXA suffix indicates a specific package type and reel quantity distinct from other variants like the LM2852XMLE or LM2852XMSX. Understanding these suffix differences is critical for ensuring mechanical and electrical compatibility in existing designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements must match the 1.5V fixed output and 3A current capability. Verify pin-to-pin compatibility if substituting within the same manufacturer's portfolio. Cross-reference input voltage ranges and switching frequencies to ensure equivalent performance. Check for any changes in control loop stability or transient response characteristics when evaluating alternative suppliers.