Company News

Ⅰ.Overview of product

LMR51430YDDCR is a high-performance buck DC-DC switching regulator developed by Texas Instruments. It features wide input voltage range and synchronous rectification, ideal for efficient step-down power conversion.

Ⅱ.Core parameter

Category:Integrated Circuits (ICs),Power Management (PMIC),Voltage Regulators - DC DC Switching Regulators

Voltage - Input (Max):36V

Mfr:Texas Instruments

Voltage - Output (Min/Fixed):0.6V

Series:SIMPLE SWITCHER®

Voltage - Output (Max):34.2V

Packaging:Tape & Reel

Current - Output:3A

Part Status:Active

Frequency - Switching:1.1MHz

Function:Step-Down

Synchronous Rectifier:Yes

Output Configuration:Positive

Operating Temperature:-40°C ~ 150°C (TJ)

Topology:Buck

Mounting Type:Surface Mount

Output Type:Adjustable

Package / Case:SOT-23-6 Thin, TSOT-23-6

Voltage - Input (Min):4.5V

Ⅲ.Main characteristics

Wide Voltage:It supports a 4.5V to 36V wide input voltage range for versatile power source adaptation. It also provides an adjustable 0.6V to 34.2V output to meet diverse voltage demands.

Stable Output:The regulator delivers a continuous 3A output current for stable power supply loads. It maintains consistent output performance under varying working conditions.

High Efficiency:Built-in synchronous rectification eliminates external freewheeling diodes. This design greatly reduces power loss and improves overall conversion efficiency.

Compact Package:Adopting tiny TSOT-23-6 surface-mount package saves PCB space effectively. It perfectly fits lightweight and miniaturized electronic product designs.

Fixed Frequency:It operates at a fixed 1.1MHz switching frequency for easy peripheral circuit design. The stable frequency also lowers EMI interference in power systems.

Easy Integration:As a SIMPLE SWITCHER® device, it requires minimal external components. It simplifies circuit design and shortens product development cycles significantly.

Ⅳ.Application field

IoT Devices:It powers smart sensors and wireless IoT terminal equipment. It provides efficient step-down voltage conversion for low-power intelligent hardware.

Automotive Modules:Applied in automotive interior light control and vehicle sensor circuits. It adapts to vehicle 12V/24V power supply and offers stable voltage output.

Industrial Control:Used for power supply regulation of PLC peripheral modules and industrial relays. It ensures stable operation of industrial automation equipment under fluctuating voltages.

Consumer Electronics:Deployed in portable charging equipment and desktop small power adapters. It achieves high-efficiency voltage conversion and reduces device heat generation.

Communication Hardware:It supplies power to router signal processing and network module circuits. It suppresses power fluctuation to guarantee stable signal transmission.

Instrument Equipment:Applied in handheld measuring instruments and portable detection devices. Its compact size and wide voltage adaptability meet portable device design needs.

Ⅴ.Summary

The LMR51430YDDCR is a compact, high-efficiency synchronous buck regulator with wide voltage adaptation and excellent thermal resistance. It is a versatile and reliable power management solution for industrial, automotive and consumer electronic precision power supply systems.