LMR51430XDDCR

$1.10

Description：IC REG BUCK ADJ 3A SOT23
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:63f2f0b60439 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMR51430XDDCR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK ADJ 3A SOT23. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMR51430XDDCR

Description：IC REG BUCK ADJ 3A SOT23
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4.5V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：0.6V
Voltage - Output (Max)：34.2V
Current - Output：3A
Frequency - Switching：500kHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：SOT-23-6 Thin, TSOT-23-6
Supplier Device Package：SOT-23-THIN
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMR51430XDDCR

LMR51430XDDCR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51430XDDCR is a synchronous buck converter from Texas Instruments featuring a 4.5-V to 36-V input voltage range and delivering up to 3-A continuous output current. It operates at fixed switching frequencies of 500 kHz or 1.1 MHz, with a maximum duty cycle of 98%. The device supports start-up with prebiased outputs and includes internal short circuit protection with hiccup mode. It utilizes a SOT-23 package and functions within a junction temperature range of -40°C to 150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Configured for rugged industrial applications with wide input voltage tolerance
Supports start-up with prebiased output conditions
Includes internal short circuit protection utilizing hiccup mode
Offers selectable PFM and forced PWM operation modes

Voltage Regulators - DC DC Switching Regulators Applications

Appliances
Building automation
Motor drives
General purpose wide VIN power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official documentation to confirm the exact switching frequency variant (500 kHz or 1.1 MHz) and operational mode (PFM or FPWM). Ensure the selected part matches the required thermal management specifications for the intended operating environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for industrial power conditioning from unregulated sources. It is suitable for designs needing high efficiency at light loads via PFM or constant frequency operation via FPWM. Verify compatibility with existing control loops due to internal compensation.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family, designed for ease of use with internal compensation. It serves as a pin-to-pin compatible replacement for TPS54202 and TPS54302 controllers, facilitating direct upgrades in existing industrial designs requiring robust performance in small form factors.