LMR23610AEVM: 3.3V or 5V @ 1A, 4.5 ~ 36V in, Buck

Summary

The LMR23610 SIMPLE SWITCHER® is an easy to use 36 V, 1 A synchronous step down regulator. With a wide input range from 4.5 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 2µA 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 allows 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.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-44886-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V 5 V
Current Out	1 A
Voltage In	4.5 ~ 36 V
Efficiency @ Conditions	>90%, 12V in, 5V @ 0.008 ~ 1 A >85%, 12V in, 3.3V @ 0.005 ~ 1 A
Voltage Out Range	1 ~ 28 V
Features	Current Limit (Adj. or Fixed) Pre-Biased Startup Short Circuit Protection Shutdown, Enable, Standby Soft Start Synchronizable Thermal Protection
Switching Frequency	400 kHz
Standby Current [Typical]	2 µA
Quiescent Current [Typical]	75 µA
Component Count + Extras	19 + 16
Internal Switch	Yes
Design Author	Texas Instruments
Application / Target Market	Automotive Battery Chargers Power: Auxiliary Power Supply Power: Industrial Power Telecom
Standby Current [Maximum]	4 µA
Quiescent Current [Maximum]	- Not Given
Main I.C. Base Part	LMR23610
Date Created By Author	2015-12
Date Added To Library	2017-01