LM2852XMXAX-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2852XMXAX-3.3/NOPB is a synchronous buck regulator from Texas Instruments featuring an integrated power stage capable of delivering up to 2A output current. It operates with a fixed switching frequency selectable between 500kHz and 1.5MHz, enabling the use of compact passive components. The device accepts input voltages ranging from 2.85V to 5.5V and provides a fixed 3.3V output. It utilizes a 14-pin HTSSOP package with exposed pad for thermal management and supports operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification eliminates the need for external Schottky diodes, improving efficiency and reducing component count.
• Fixed switching frequency selection allows optimization for either size or transient response requirements.
• Internal soft-start circuitry limits inrush current during startup to prevent input voltage droop.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded processors and FPGAs
• Battery-powered portable devices requiring efficient step-down conversion
• Industrial control systems operating within wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) to confirm lead-free compliance and RoHS status as defined by the manufacturer. Ensure the ordering part number matches the exact output voltage and package variant required for your design. Cross-reference the datasheet revision date to confirm compatibility with your system specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with high efficiency and minimal external components. Consider the 14-pin HTSSOP package constraints for PCB layout and thermal dissipation. Evaluate the trade-off between 500kHz and 1.5MHz switching frequencies based on available inductor size and electromagnetic interference requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2852 family of SIMPLE SWITCHER regulators, designed for space-constrained applications. It shares architectural similarities with other members like the LM2852Y series but differs in specific electrical characteristics and pin configurations. The X-series designation typically indicates specific output voltage options within the broader product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitutes include LM2852XMXAX-33-NOPB, which appears to be an alternate designation for the same functional unit. Verify pinout compatibility and thermal performance when substituting with other synchronous buck regulators from different manufacturers.