LMZ14203EVAL: 3.3V @ 3A, 6 ~ 42V in


The LMZ1420x and LMZ1200x SIMPLE SWITCHER power modules are easy-to-use DC-DC solution capable of driving up to a 3A load with exceptional power conversion efficiency, output voltage accuracy, line and load regulation.

The LMZ14203/2/1 can accept an input voltage rail between 6V and 42V and the LMZ12003/2/1 can accept an input voltage rail between 4.5V and 20V. The devices can deliver an adjustable and highly accurate output voltage as low as 0.8V and as high as 6V.


Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number LMZ14203EVAL/NOPB-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Output Voltage: Factory Set 3.3 V
Current Out 3 A
Voltage In 6 ~ 42 V
Efficiency @ Conditions >85%, 12V in, 3.3V @ 0.4 ~ 3 A
>82%, 36V in, 3.3V @ 0.4 ~ 3 A Out
Voltage Out Range 0.8 ~ 6 V
Features Current Limit (Adj. or Fixed)
Short Circuit Protection
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency - Not Given
Standby Current [Typical] 25 µA
Quiescent Current [Typical] 1 mA
Component Count + Extras 12 + 5
Internal Switch Yes
Design Author Texas Instruments
Application / Target Market Medical
Point of Load (PoL)
Standby Current [Maximum] - Not Given
Main I.C. Base Part LMZ14203TZ-ADJ
Quiescent Current [Maximum] - Not Given

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