LMR14206XMKDEMO: 1.2V @ 600mA, 4.5 ~ 42V in

Summary

The LMR14203/06 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a variety of applications from automotive to power conditioning of unregulated sources.

The LMR14203 / LMR14206 demonstration Board is designed to provide the design engineer with a fully functional power converter based on the buck topology to evaluate the LMR14203/06 series of buck regulators. The demonstration board comes populated with either the LMR14203XMK or LMR14206XMK but can easily be modified to accommodate any of the LMR14203/06 regulator ICs.

Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.

The LMR14206 is optimized for up to 600 mA load current with a 0.765V nominal feedback voltage.

Additional features include: thermal shutdown, VIN undervoltage lockout, and gate drive under-voltage lockout.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	LMR14206XMKDEMO/NOPB-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	1.2 V
Current Out	600 mA
Voltage In	4.5 ~ 42 V
Efficiency @ Conditions	>65%, 12V in, 1.2V @ 150 ~ 600 mA >60%, 24V in, 1.2V @ 200 ~ 600 mA
Voltage Out Range	- Not Given
Features	Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	1.25 MHz
Standby Current [Typical]	16 µA
Quiescent Current [Typical]	1.35 mA
Component Count + Extras	11 + 5
Internal Switch	Yes
Design Author	Texas Instruments
Application / Target Market	Point of Load (PoL) Portable Devices
Standby Current [Maximum]	40 µA
Quiescent Current [Maximum]	1.85 mA
Main I.C. Base Part	LMR14206
Date Created By Author	2011-11
Date Added To Library	2012-06