LMZ14203 Datasheet (National Semiconductor)

LMZ14203, Power Module

Pin 1 2 3 4 5 6 Name Description VIN RON EN GND SS FB Supply input * Nominal operating range is 6V to 42V .

A small amount of internal capacitance is contained within the package assembly.

Additional external input capacitance is required between this pin and exposed pad.

On Time Resistor <

LMZ14203 3A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage February 1, 2010 LMZ14203 3A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage Easy to use 7 pin package Performance Benefits Operates at high ambient temperature with no thermal derating High efficiency reduces system heat generation Low radiated emissions (EMI) complies with EN55022 class B standard EN61000 4-3 Passes 10V/m radiated immunity EMI test standard 30107086 TO-PMOD 7 Pin

LMZ14203 Features

* Integrated shielded inductor

* Simple PCB layout

* Flexible startup sequencing using external soft-start and precision enable 30107036 Thermal derating curve VIN = 24V, VOUT = 5.0V,

* Protection against inrush currents and faults such as input UVLO and output short circuit