Specification	LMZ14203EXTTZ/NOPB

Applications	ITE (Commercial)
Control Features	Active High, Enable
Current - Output (Max) [Max]	3 A
Efficiency	90 %
Features	UVLO, OTP, OVP, SCP
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	TO-PMOD-7, Power Module
Size / Dimension [x]	0.4 in
Size / Dimension [x]	10.2 mm
Size / Dimension [y]	9.9 mm
Size / Dimension [y]	0.39 "
Size / Dimension [z]	4.6 mm
Size / Dimension [z]	0.18 "
Supplier Device Package	TO-PMOD-7
Type	Non-Isolated PoL Module
Voltage - Input (Max) [Max]	42 V
Voltage - Input (Min) [Min]	6 V
Voltage - Output 1 [Max]	6 V
Voltage - Output 1 [Min]	0.8 V

LMZ14203EXT Series

3A SIMPLE SWITCHER Power Module with 42V Maximum Input Voltage for Military and Rugged App

Part	Utilized IC / Part	Outputs and Type	Outputs and Type	Voltage - Input [Max]	Voltage - Input [Min]	Frequency - Switching [Max]	Main Purpose	Voltage - Output	Supplied Contents	Current - Output	Board Type	Regulator Topology	Efficiency	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Control Features	Supplier Device Package	Mounting Type	Voltage - Input (Min) [Min]	Type	Current - Output (Max) [Max]	Applications	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [z]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [z]	Voltage - Output 1 [Min]	Voltage - Output 1 [Max]	Features	Number of Outputs	Package / Case
Texas Instruments LMZ14203DEMO/NOPB	LMZ14203	Non-Isolated	1	42 V	6 V	1 MHz	DC/DC Step Down	3.3 V	Board(s)	3 A	Fully Populated	Buck
Texas Instruments LMZ14203HEVAL/NOPB	LMZ14203H	Non-Isolated	1	42 V	15 V	1 MHz	DC/DC Step Down	12 V	Board(s)	3 A	Fully Populated	Buck
Texas Instruments LMZ14203HTZ/NOPB													94 %	125 °C	-40 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	5 V	30 V	UVLO	1	TO-PMOD-7 Power Module
Texas Instruments LMZ14203EVAL/NOPB	LMZ14203	Non-Isolated	1	42 V	6 V	1 MHz	DC/DC Step Down	3.3 V	Board(s)	3 A	Fully Populated	Buck
Texas Instruments LMZ14203HTZE/NOPB													94 %	125 °C	-40 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	5 V	30 V	UVLO	1	TO-PMOD-7 Power Module
Texas Instruments LMZ14203EXTTZ/NOPB													90 %	125 °C	-55 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	0.8 V	6 V	OTP OVP SCP UVLO	1	TO-PMOD-7 Power Module
Texas Instruments LMZ14203EXTTZE/NOPB													90 %	125 °C	-55 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	0.8 V	6 V	OTP OVP SCP UVLO	1	TO-PMOD-7 Power Module
Texas Instruments LMZ14203TZ-ADJ/NOPB													90 %	125 °C	-55 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	0.8 V	6 V	OTP OVP SCP UVLO	1	TO-PMOD-7 Power Module
Texas Instruments LMZ14203HTZX/NOPB													94 %	125 °C	-40 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	5 V	30 V	UVLO	1	TO-PMOD-7 Power Module
Texas Instruments LMZ14203TZX-ADJ/NOPB													90 %	125 °C	-40 °C	42 V	Active High Enable	TO-PMOD-7	Surface Mount	6 V	Non-Isolated PoL Module	3 A	ITE (Commercial)	0.4 in	9.9 mm	4.6 mm	10.2 mm	0.39 "	0.18 "	0.8 V	6 V	OTP OVP SCP UVLO	1	TO-PMOD-7 Power Module

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 39.29
		5	$ 37.04
		10	$ 36.11
		25	$ 34.92
		50	$ 34.04
		100	$ 33.19
	Digi-Reel®	1	$ 39.29
		5	$ 37.04
		10	$ 36.11
		25	$ 34.92
		50	$ 34.04
		100	$ 33.19
	Tape & Reel (TR)	250	$ 32.09
Texas Instruments	SMALL T&R	1	$ 35.11
		100	$ 31.21
		250	$ 25.66
		1000	$ 22.95

Description

General part information

LMZ14203EXT Series

The LMZ14203EXT SIMPLE SWITCHER,sup>® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203EXT is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14203EXT can accept an input voltage rail between 6 V and 42 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14203EXT only requires three external resistors and four external capacitors to complete the power solution. The LMZ14203EXT is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and the device allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

Documents

Technical documentation and resources

LMZ12,4yyy Generic 8D Report

SIMPLE SWITCHER® Design Guide

Design guide

Understanding and Applying Current-Mode Control Theory

Application note

AN-2026 Effect of PCB Design on Thermal Performance of SIMPLE SWITCHER Modules (Rev. A)

Application note

AN-2027 Inverting Application for the LMZ14203 SIMPLE SWITCHER Power Module (Rev. A)

Application note

LMZ14203EXT 3-A SIMPLE SWITCHER® Power Module With 42-V Maximum Input Voltage for Military and Rugged Applications datasheet (Rev. H)

Data sheet

LMZ14203EXTTZ/NOPB

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LMZ14203EXTTZ/NOPB

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Technical Specifications

LMZ14203EXT Series

Pricing

Description

LMZ14203EXT Series

Documents

LMZ12,4yyy Generic 8D Report

SIMPLE SWITCHER® Design Guide

Understanding and Applying Current-Mode Control Theory

AN-2026 Effect of PCB Design on Thermal Performance of SIMPLE SWITCHER Modules (Rev. A)

AN-2027 Inverting Application for the LMZ14203 SIMPLE SWITCHER Power Module (Rev. A)

Design Summary LMZ1xxx and LMZ2xxx Power Module Family (Rev. B)

AN-2078 PCB Layout for Texas Instruments SIMPLE SWITCHER Power Modules (Rev. A)

AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)

AN-643 EMI/RFI Board Design (Rev. B)

AN-2052 Texas Instruments SIMPLE SWITCHER Power Modules and EMI (Rev. C)

AN-2084 LMZ1420xEXT / LMZ1200xEXT Evaluation Board (Rev. A)

LMZ14203EXT 3-A SIMPLE SWITCHER® Power Module With 42-V Maximum Input Voltage for Military and Rugged Applications datasheet (Rev. H)

LMZ14203EXT Series