LM2853MH-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2853MH-1.5/NOPB is a synchronous step-down switching regulator from Texas Instruments, designed for efficient power conversion in compact systems. It features a fixed 1.5 V output voltage and supports a maximum load current of 3 A. The device operates with an input voltage range of 3 V to 5.5 V and utilizes a 550 kHz switching frequency. Packaged in a 14-pin PowerTSSOP (HTSSOP) with an exposed pad, it integrates factory-programmed EEPROM settings for precise voltage configuration. The component functions within a temperature range of -40 °C to +125 °C, ensuring reliability in industrial and consumer applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology provides high efficiency across the load range
• Factory EEPROM set output voltages ensure precision without external resistors
• Integrated power switches eliminate need for external components
• Fixed 550 kHz switching frequency allows use of small passive components

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring efficient 1.5 V rail generation
• Industrial control systems with 3 V to 5.5 V input supplies
• Embedded systems needing stable low-voltage power delivery
• Battery-powered devices optimizing energy consumption

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix NOPB confirms lead-free and RoHS compliance as per Texas Instruments specifications. Confirm the package variant matches the 14-PowerTSSOP footprint requirements for your PCB layout. Ensure the fixed 1.5 V output aligns with your system design needs, as this variant does not support adjustable outputs. Cross-reference the datasheet revision date to confirm thermal and electrical characteristics match your application constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5 V output at up to 3 A is required from a 3 V to 5.5 V source. The integrated EEPROM simplifies design by removing external feedback resistors, reducing board space. Consider the 550 kHz frequency for balancing efficiency and component size. The wide operating temperature range suits harsh environments. Compare against adjustable variants if flexibility is needed, but choose this fixed version for cost and simplicity in standardized designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2853 family of synchronous buck regulators from Texas Instruments. These devices are designed for applications requiring high efficiency and minimal external components. The MH-1.5/NOPB variant specifically offers a fixed 1.5 V output, distinguishing it from adjustable or other fixed voltage versions in the series. The family shares common features like internal compensation and protection circuits, tailored for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include other LM2853 variants with different fixed output voltages (e.g., LM2853MH-1.8/NOPB, LM2853MH-3.3/NOPB) if the voltage requirement changes. For adjustable output needs, consider the LM2853MHX/NOPB. Ensure any substitute maintains the 14-PowerTSSOP package and 3 A current capability. Verify compatibility with existing PCB footprints and thermal management strategies.