LT1912EMSE#TRPBF

Overview

The LT1912EMSE#TRPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It integrates a high-side and low-side N-channel power MOSFETs to deliver up to 2A of output current from input voltages ranging from 3V to 36V. The device operates with a fixed internal switching frequency of 500kHz, allowing for the use of small external inductors and capacitors. It features adjustable output voltage via an external resistor divider, precision tracking capabilities, and integrated soft-start functionality to limit inrush current during startup.

Feature Summary

• Integrates high-efficiency synchronous rectification using internal N-channel MOSFETs
• Supports wide input voltage range suitable for various bus architectures
• Includes programmable soft-start to control inrush current during initialization

Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for embedded computing systems
• Battery-powered devices requiring efficient voltage conversion

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the EMSE designation corresponds to the MSOP-10 package variant required for your PCB layout. Ensure compatibility with the intended operating temperature range specified in the official datasheet before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is needed for converting higher bus voltages down to lower logic or analog supply rails. The fixed 500kHz frequency offers a balance between component size and efficiency. Consider thermal performance requirements as the device delivers significant current in a small surface-mount package.

Part Context

This part belongs to the LT1912 family of synchronous buck regulators designed for applications requiring high efficiency and minimal external component count. It serves as a core power management element within larger electronic systems, providing stable DC voltage conversion from unregulated or variable input sources.

Replacement Considerations

Consult official cross-reference documentation for verified substitutes. Ensure any replacement maintains compatible input voltage ranges, current handling capabilities, and pinout configurations to guarantee functional equivalence without redesigning the surrounding circuitry.