LMZ14203 SIMPLE SWITCHER® Power Modules

Texas Instruments offers its LMZ14203 SIMPLE SWITCHER, 6 V to 42 V, 3 A power modules in a leaded, surface-mount TO package

Image of Texas Instruments' LMZ14203 SIMPLE SWITCHER® Power ModulesTexas Instruments' LMZ14203 SIMPLE SWITCHER power modules are easy-to-use, step-down, DC-DC solutions that can drive up to 3 A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203 are available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14203 can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14203 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14203 are a reliable and robust design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, output current limit, and it allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

Features
  • Integrated shielded inductor
  • Simple PCB layout
  • Flexible start-up sequencing using external soft-start and precision enable
  • Protection against inrush currents and faults such as input UVLO and output short circuit
  • -40°C to 125°C junction temperature range
  • Single exposed pad and standard pinout for easy mounting and manufacturing
  • Fast transient response for powering FPGAs and ASICs
  • Low output voltage ripple
  • Pin-to-pin compatible family:
    • LMZ1420x (42 V maximum 3 A, 2 A, 1 A)
    • LMZ1200x (20 V maximum 3 A, 2 A, 1 A)
  • Fully enabled for WEBENCH® power designer
  • Electrical specifications:
    • 18 W maximum total output power
    • Up to 3 A output current
    • Input voltage range 6 V to 42 V
    • Output voltage range 0.8 V to 6 V
    • Efficiency up to 90%
  • Performance benefits:
    • Operates at high ambient temperature with no thermal derating
    • High efficiency reduces system heat generation
    • Low radiated emissions (electromagnetic interference [EMI])(1)
    • Passes 10 V/m radiated immunity EMI test standard EN61000 4-3

LMZ14203 SIMPLE SWITCHER Power Modules

ImageManufacturer Part NumberDescriptionVoltage - Output 3Available QuantityPriceView Details
DC DC CONVERTER 5-30VLMZ14203HTZX/NOPBDC DC CONVERTER 5-30V-1847 - Immediate$148.09View Details
DC DC CONVERTER 0.8-6VLMZ14203EXTTZ/NOPBDC DC CONVERTER 0.8-6V-821 - Immediate$362.13View Details
DC DC CONVERTER 0.8-6VLMZ14203EXTTZE/NOPBDC DC CONVERTER 0.8-6V-1232 - Immediate$394.81View Details
DC DC CONVERTER 0.8-6VLMZ14203EXTTZX/NOPBDC DC CONVERTER 0.8-6V-0 - Immediate$289.07View Details
DC DC CONVERTER 5-30VLMZ14203HTZ/NOPBDC DC CONVERTER 5-30V-2644 - Immediate$175.92View Details
DC DC CONVERTER 5-30VLMZ14203HTZE/NOPBDC DC CONVERTER 5-30V-774 - Immediate$175.92View Details
DC DC CONVERTER 0.8-6VLMZ14203TZ-ADJ/NOPBDC DC CONVERTER 0.8-6V-648 - Immediate$168.34View Details
DC DC CONVERTER 0.8-6VLMZ14203TZE-ADJ/NOPBDC DC CONVERTER 0.8-6V-339 - Immediate$168.34View Details
DC DC CONVERTER 0.8-6VLMZ14203TZX-ADJ/NOPBDC DC CONVERTER 0.8-6V-2226 - Immediate$140.85View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionRegulator TopologyAvailable QuantityPriceView Details
EVAL BOARD FOR LMZ14203LMZ14203DEMO/NOPBEVAL BOARD FOR LMZ14203Buck2 - Immediate$197.57View Details
EVAL BOARD FOR LMZ14203LMZ14203EVAL/NOPBEVAL BOARD FOR LMZ14203Buck1 - Immediate$484.04View Details
EVAL BOARD FOR LMZ14203EXTLMZ14203EXTEVAL/NOPBEVAL BOARD FOR LMZ14203EXTBuck4 - Immediate$484.04View Details
EVAL BOARD FOR LMZ14203HLMZ14203HEVAL/NOPBEVAL BOARD FOR LMZ14203HBuck26 - Immediate$484.04View Details
Published: 2016-08-02