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LMR23610

ACTIVE

SIMPLE SWITCHER, 36V 1A Synchronous Step-Down Converter

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Data sheet

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LMR33610 ACTIVE SIMPLE SWITCHER® 3.8-V to 36-V, 1-A synchronous step-down converter in SOIC-8 package Smaller footprint, higher efficiency, lower IQ and lower EMI.

LMR23610

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Control mode current mode Vout (min) (V) 1 Vout (max) (V) 30 Iq (typ) (µA) 75 Duty cycle (max) (%) 97
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Control mode current mode Vout (min) (V) 1 Vout (max) (V) 30 Iq (typ) (µA) 75 Duty cycle (max) (%) 97
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 4-V to 36-V Input Range
  • 1-A Continuous Output Current
  • Integrated Synchronous Rectification
  • Current Mode Control
  • Minimum Switch-On Time: 60 ns
  • 400-kHz Switching Frequency With PFM Mode
  • Frequency Synchronization to External Clock
  • Internal Compensation for Ease of Use
  • 75-µA Quiescent Current at No Load
  • Soft Start into a Prebiased Load
  • High Duty-Cycle Operation Supported
  • Precision Enable Input
  • Output Short-Circuit Protection With Hiccup Mode
  • Thermal Protection
  • 8-Pin HSOIC With PowerPAD™ Package
  • Create a Custom Design Using the LMR23610 With the WEBENCH® Power Designer
  • 4-V to 36-V Input Range
  • 1-A Continuous Output Current
  • Integrated Synchronous Rectification
  • Current Mode Control
  • Minimum Switch-On Time: 60 ns
  • 400-kHz Switching Frequency With PFM Mode
  • Frequency Synchronization to External Clock
  • Internal Compensation for Ease of Use
  • 75-µA Quiescent Current at No Load
  • Soft Start into a Prebiased Load
  • High Duty-Cycle Operation Supported
  • Precision Enable Input
  • Output Short-Circuit Protection With Hiccup Mode
  • Thermal Protection
  • 8-Pin HSOIC With PowerPAD™ Package
  • Create a Custom Design Using the LMR23610 With the WEBENCH® Power Designer

The LMR23610 SIMPLE SWITCHER® device is an easy-to-use 36-V, 1-A synchronous step down regulator. With a wide input range from 4 V to 36 V, it is suitable for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes it suitable for battery-powered systems. An ultra-low 2 µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. An extended family is available in 2.5 A (LMR23625) and 3 A (LMR23630) load-current options in pin-to-pin compatible packages, which allow simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection and thermal shutdown due to excessive power dissipation.

The LMR23610 SIMPLE SWITCHER® device is an easy-to-use 36-V, 1-A synchronous step down regulator. With a wide input range from 4 V to 36 V, it is suitable for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes it suitable for battery-powered systems. An ultra-low 2 µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. An extended family is available in 2.5 A (LMR23625) and 3 A (LMR23630) load-current options in pin-to-pin compatible packages, which allow simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection and thermal shutdown due to excessive power dissipation.

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Type Title Date
* Data sheet LMR23610 SIMPLE SWITCHER® 36-V, 1-A Synchronous Step-Down Converter datasheet (Rev. C) PDF | HTML 28 Feb 2018
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Technical article SOIC-8 stands the test of time PDF | HTML 26 Sep 2016

Design & development

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

Evaluation board

LMR23610AEVM — LMR23610 Wide Vin Synchronous Step-Down Converter Evaluation Module

The LMR23610AEVM is a fully assembled and tested circuit for evaluating the LMR23610ADDAR Step-Down Converter. The LMR23610AEVM operates from 4V to 36V input (12V nominal) and provides a 5.0V/3.3V output at 1A. The board has jumper connectors to select output options, enable or disable the (...)
User guide: PDF
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Simulation model

LMR23610A Non-Inverting and Inverting PSpice Transient Model

SNVMAT7.ZIP (165 KB) - PSpice Model
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Simulation model

LMR23610A Unencrypted Non-Inverting and Inverting PSpice Transient Model

SNVMAT6.ZIP (6 KB) - PSpice Model
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Reference designs

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The need for lower power, lower noise analog front-ends (AFE) is becoming increasingly important in many applications today, such as data acquisition systems (DAQs), field instrumentation, Internet-of-Things (IoT), and automatic test equipment. In many cases, this need is highlighted by the advent (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01621 — Smart Holding Brake Controller Reference Design with Current Regulation for Servo Drives & Robotics

This reference design implements safe brake control functionality in servo drives as per IEC EN 61800-5-2 by providing two channel output signals to control an external holding brake. The holding brake will be latched when the power supply is cut off and released when voltage is applied to the (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP30082 — 6W 48V-72Vin Fly-Buck with Primary and Isolated Secondary Load Reference Design

The PMP30082 reference design shows two stage power supply. The first stage is a fly-buck topology that converts an input of 48V-72V to a primary output voltage of 12V with a maximum load current of 250mA and to an isolated secondary output voltage of 24V with a load current of 160mA. Two Buck (...)
Test report: PDF
Schematic: PDF
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