Texas Instruments

LMR14030SDDAR

Voltage Regulators - DC DC Switching Regulators

Manufacturer
MPN
LMR14030SDDAR
Package / Case
SO-8-EP
Key Attributes
4 V to 40 V Input Range, 3.5A Step-Down Regulator

Technical Specifications

TypeDescription
Output TypeAdjustable
Output Voltage14.4 V
Output Current3.5 A
FunctionStep-down type
Working Voltage V22 V
Switching Freq Hz2.5 MHz
Channels1
TypeDescription
Iq A4e-05
Switch tube (built-in/external)Built-in
Operating Temp-40°C ~ +125°C @(TJ)
FeaturesCycle-by-cycle current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Overcurrent Protection
TopologyBuck
Package / CaseSO-8-EP

Product Introduction

The LMR14030 is a 40 V, 3.5 A step down regulator with an integrated high-side MOSFET. With a wide input range from 4 V to 40 V, it’s suitable for various applications from industrial to automotive for power conditioning from unregulated sources. The regulator’s quiescent current is 40 μA in Sleep-mode, which is suitable for battery powered systems. An ultra-low 1 μA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.

Features

  • 4 V to 40 V Input Range
  • 3.5 A Continuous Output Current
  • Ultra-low 40 μA Operating Quiescent Current
  • 90 mΩ High-Side MOSFET
  • Minimum Switch-On Time: 75 ns
  • Current Mode Control
  • Adjustable Switching Frequency from 200 kHz to 2.5 MHz
  • Frequency Synchronization to External Clock
  • Internal Compensation for Ease of Use
  • High Duty Cycle Operation Supported
  • Precision Enable Input
  • 1 μA Shutdown Current
  • External Soft-start
  • Thermal, Overvoltage and Short Protection
  • 8-Pin HSOIC with PowerPAD Package

Applications

  • - Automotive Battery Regulation - Industrial Power Supplies - Telecom and Datacom Systems - Battery Powered System

Datasheet

📄 Open Download

Alternative Parts

Common LMR14030SDDAR alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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