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reference designLMR23615EVM

Texas Instruments LMR23615EVM

SIMPLE SWITCHER®, 36V, 1.5A Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4-36 V
Output 15 V / 1.5 A
IC revisionSNVU566–April 2017 1

Description

EVM Features• 4 V to 36 V Input Voltage Range• Jumper Selectable Output Options (5 V or 3.3 V)• Up to 1.5 A Output Current• Switching Frequency 1600 kHz• Adjustable Frequency and Synchronization to External ClockThe LMR23615 SIMPLE SWITCHER® is an easy-to-use 36-V, 1.5-A synchronous step-down regulator. With a wide input range from 4 V to 36 V, the device is suitable for various industrial applications 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 the device 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 and also minimizes the external components needed. An extended family is available in 2.5-A (LMR23625) and 3-A (LMR23630) load-current options in pin-to-pin compatible packages, allowing 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.

Features

4-V to 36-V Input Range1.5-A Continuous Output CurrentIntegrated Synchronous RectificationCurrent-Mode Control with internal compensationMinimum Switch ON Time: 60 nsAdjustable Switching FrequencyPFM Mode at Light LoadFrequency Synchronization to External Clock75-µA Quiescent CurrentSoft-Start into a Pre-Biased LoadHigh-Duty-Cycle Operation SupportedOutput Short-Circuit Protection With Hiccup ModeThermal Protection12-Pin WSON Wettable Flanks Package With PowerPAD™

Typical applications

  • GSM, GPRS Modules for Fleet Management, Smart Grids, and Security
  • Multi-Function Printers
  • HVAC Systems
  • Programmable Logic Controller Power Supply / Industrial Power Supplies

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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74438356047
SPECWE-MAPI SMT Power Inductor, 4.7 µH, 4 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance4.7 µH
Performance Rated Current4 A
Saturation Current @ 30%5.75 A
DC Resistance63 mΩ
Self Resonant Frequency22 MHz
Operating Voltage80 V
MountSMT 
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