LM2854MH-1000

Voltage Regulators - DC DC Switching Regulators Overview

The LM2854MH-1000 is a synchronous buck regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 2.95 V to 5.5 V and delivers up to 4 A output current. The device supports switching frequencies of 500 kHz and 1 MHz, enabling the use of compact passive components. It features a fixed 1.2 V output configuration in this specific variant, adjustable via feedback resistors. The IC is housed in a 16-pin HTSSOP package and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification utilizing internal N-channel MOSFETs for enhanced efficiency.
• External soft-start capability allowing controlled ramp-up and pre-bias load startup without glitches.
• Dedicated analog supply pin (AVIN) with low-pass filtering support to isolate noise-sensitive control circuits.
• Built-in thermal protection and cycle-by-cycle current limiting to safeguard against overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for portable consumer electronics
• Power distribution networks in industrial equipment
• Voltage step-down for embedded computing modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix and tape-and-reel specifications when sourcing, as packaging quantities may vary by distributor. Confirm RoHS compliance status through official documentation prior to integration. Ensure that the selected variant matches the required output voltage and frequency settings for your specific design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component for designs requiring high current density and efficient power management within a narrow input voltage window. The synchronous architecture reduces external component count compared to non-synchronous alternatives. Evaluate thermal performance under maximum load conditions to ensure reliable operation within the specified temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2854 family of SIMPLE SWITCHER regulators, which are optimized for space-constrained applications. The series offers various frequency options and output configurations to suit different power levels. The MH variant specifically denotes the HTSSOP-16 package type, providing a balance between thermal dissipation and board space efficiency.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2854MHX-1000/NOPB