LM2853MHX-1.2/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2853MHX-1.2/NOPB is a synchronous buck regulator from Texas Instruments, housed in a 14-pin HTSSOP package. It delivers a fixed 1.2 V output with a maximum load current of 3 A. The device operates at a switching frequency of 550 kHz and supports an input voltage range from 3 V to 5.5 V. It functions within an ambient temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification.
• Features adjustable soft-start control to limit inrush current during startup.
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limiting and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded processors
• Power supply stages for industrial equipment
• Battery-powered portable devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix to confirm lead-free status and specific packaging configuration. Ensure the ordering code matches the required tape-and-reel quantity or tube count. Cross-reference the manufacturer's latest datasheet revision to confirm pinout compatibility and electrical specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2 V output is required for systems operating between 3 V and 5.5 V. It is suitable for applications needing up to 3 A of continuous load current. Consider the 14-pin HTSSOP package constraints regarding thermal dissipation and PCB layout space. Evaluate the 550 kHz switching frequency against electromagnetic interference requirements and external inductor selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2853 family of synchronous buck regulators. It shares architectural similarities with other members like the LM2853MHX-2.5/NOPB but differs in its fixed internal feedback resistor network that sets the output voltage. The NOPB suffix indicates a lead-free and RoHS-compliant manufacturing process compared to older variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2853MHX-2.5/NOPB offers identical functionality with a different fixed output voltage. LM2853MHX-12/NOPB provides a higher fixed output level. Verify pin-to-pin compatibility and ensure the alternative part meets the same thermal and current handling requirements for the specific application design.