Home Power management DC/DC switching regulators Step-down (buck) regulators Buck converters (integrated switch)

LMR24210

ACTIVE

42Vin, 1.0A Step-Down Voltage Regulator in micro SMD

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
LMR54410 ACTIVE SIMPLE SWITCHER® power converter 4.5-V to 36-V, 1-A, synchronous buck with 80-µA IQ Smaller footprint, lower quiescent current, FPWM and PFM options.

Product details

Vin (min) (V) 4.5 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 24 Iout (max) (A) 1 Iq (typ) (mA) 0.7 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection, Synchronous Rectification Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode COT with emulated ripple Duty cycle (max) (%) 94 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 24 Iout (max) (A) 1 Iq (typ) (mA) 0.7 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection, Synchronous Rectification Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode COT with emulated ripple Duty cycle (max) (%) 94 Type Converter
DSBGA (YPA) 28 0.5625 mm² 0.75 x 0.75
  • Input Voltage Range of 4.5 V to 42 V
  • Output Voltage Range of 0.8 V to 24 V
  • Output Current up to 1 A
  • Integrated low RDS(ON) Synchronous MOSFETs for High Efficiency
  • Up to 1 MHz Switching Frequency
  • Low Shutdown IQ, 25 µA Typical
  • Programmable Soft Start
  • No Loop Compensation Required
  • COT With ERM Architecture
  • Tiny Overall Solution Reduces System Cost
  • Integrated Synchronous MOSFETs Provides High Efficiency at Low Output Voltages
  • Stable with Low ESR Capacitors
  • 28-Bump DSBGA Packaging
  • Create a custom design using the LMR24010 with the WEBENCH® Power Designer
  • Input Voltage Range of 4.5 V to 42 V
  • Output Voltage Range of 0.8 V to 24 V
  • Output Current up to 1 A
  • Integrated low RDS(ON) Synchronous MOSFETs for High Efficiency
  • Up to 1 MHz Switching Frequency
  • Low Shutdown IQ, 25 µA Typical
  • Programmable Soft Start
  • No Loop Compensation Required
  • COT With ERM Architecture
  • Tiny Overall Solution Reduces System Cost
  • Integrated Synchronous MOSFETs Provides High Efficiency at Low Output Voltages
  • Stable with Low ESR Capacitors
  • 28-Bump DSBGA Packaging
  • Create a custom design using the LMR24010 with the WEBENCH® Power Designer

The LMR24210 synchronously rectified buck converter features all required functions to implement a highly efficient and cost effective buck regulator. It is capable of supplying 1 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LMR24210 does not rely on output capacitor ESR for stability, and is designed to work exceptionally well with ceramic and other very low ESR output capacitors. It requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC under-voltage lock-out, output overvoltage protection, thermal shutdown, and gate-drive undervoltage lockout. The LMR24210 is available in the small DSBGA low profile chip-scale package.

The LMR24210 synchronously rectified buck converter features all required functions to implement a highly efficient and cost effective buck regulator. It is capable of supplying 1 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LMR24210 does not rely on output capacitor ESR for stability, and is designed to work exceptionally well with ceramic and other very low ESR output capacitors. It requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC under-voltage lock-out, output overvoltage protection, thermal shutdown, and gate-drive undervoltage lockout. The LMR24210 is available in the small DSBGA low profile chip-scale package.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 24
Type Title Date
* Data sheet LMR24210 42-VIN, 1-A Step-Down Voltage Regulator in DSBGA Package datasheet (Rev. H) PDF | HTML 14 Jun 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Absolute Maximum Ratings for Soldering (Rev. D) 09 Jun 2016
Application note Semiconductor and IC Package Thermal Metrics (Rev. C) PDF | HTML 19 Apr 2016
Application note Cap Drop Offline Supply for E-Meters 16 Jun 2015
Application note Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B) 20 Feb 2015
Application note Thermal Design Made Simple With LM43603 and LM46002 15 Sep 2014
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12 Sep 2014
Application note Compensation Made SIMPLE With LM4360x, LM4600x 29 Jul 2014
Application note Automotive Line Transient Protection Circuit 01 Jul 2014
User guide AN-2170 LMR24210/20 Evaluation Board (Rev. A) 26 Apr 2013
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24 Apr 2013
User guide AN-2193 LMR24220 Multi-Rail Reference Board (Rev. A) 24 Apr 2013
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23 Apr 2013
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23 Apr 2013
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23 Apr 2013
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 23 Apr 2013
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23 Apr 2013
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23 Apr 2013
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23 Apr 2013
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23 Apr 2013
Application note Input and Output Capacitor Selection 19 Sep 2005
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12 Jul 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) 03 May 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMR24210EVAL — LMR24210 Small Footprint 42V Buck Regulator 1A Evaluation Board

The LMR24210/20 Step Down Switching Regulator features all required functions to implement a cost effective, efficient buck power converter capable of supplying up to 1.0A or 2.0A. The Constant On-Time (COT) regulation scheme requires no loop compensation, results in a fast load transient response (...)

User guide: PDF
Not available on TI.com
Simulation model

LMR24210 PSpice Transient Model

SNVM221.ZIP (220 KB) - PSpice Model
Simulation model

LMR24210 Unencrypted PSpice Transient Model

SNVM972.ZIP (3 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
DSBGA (YPA) 28 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos