LA5744MP-E

Voltage Regulators - DC DC Switching Regulators Overview

The LA5744MP-E is a separately-excited step-down switching regulator manufactured by onsemi. It functions as a buck converter IC with a positive adjustable output voltage starting from 1.23V and supports a single output channel. The device provides an output current capacity of 3.1A via its internal switch. It is housed in a TO-252-6 package, also known as DPAK with five leads plus a tab. This component is classified as obsolete and is no longer in active manufacturing.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Implements a separately-excited step-down topology for efficient voltage conversion
• Provides a positive adjustable output voltage range beginning at 1.23V
• Integrates a high-current switching element capable of delivering up to 3.1A

Voltage Regulators - DC DC Switching Regulators Applications

• DC-DC power supply circuits requiring step-down regulation
• Embedded systems utilizing the DPAK surface-mount form factor
• Legacy automotive or industrial equipment designs referencing this specific regulator

Voltage Regulators - DC DC Switching Regulators Procurement Notes

This part number is officially listed as obsolete and discontinued by the manufacturer. No new production units are available through standard distribution channels. Engineers must verify end-of-life status before finalizing any design documentation. Sourcing should focus on identifying verified replacement components that meet equivalent electrical specifications and pinout compatibility to ensure system continuity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Designers requiring a similar buck regulator function should evaluate current onsemi products offering comparable 3.1A output capabilities. Considerations must include input voltage ranges, thermal performance within the TO-252-6 package, and control interface requirements. Verify that alternative devices support the necessary adjustable output voltage range and switching frequency characteristics required by the target application circuit.

Voltage Regulators - DC DC Switching Regulators Part Context

The LA5744MP-E belongs to the broader category of DC-DC switching regulators produced by onsemi. It represents a legacy solution for step-down power conversion applications. The device utilizes a separately-excited architecture, distinguishing it from self-excited topologies. Its classification as obsolete places it within historical product lines used in previously designed electronic systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LA5744MP-DL-E is a documented variant within the same family. Designers should consult official substitution guides to identify modern equivalents with updated manufacturing availability while maintaining functional parity.