LMZ14203 Datasheet | National Semiconductor

Features - Integrated shielded inductor - Simple PCB layout - Flexible startup sequencing using external soft-start and precision enable Thermal derating curve VIN = 24V, VOUT = 5.0V, - Protection against inrush currents and faults such as input UVLO and output short circuit - - 40°C to 125°C junction temperature range .. mounting and manufacturing - Single exposed pad and standard pinout for easy - Fast transient response for powering FPGAs and ASICs - Low output voltage ripple - Pin-to-pin patible family: LMZ14203/2/1 (42V max 3A, 2A, 1A) LMZ12003/2/1 (20V max 3A, 2A, 1A) - Fully enabled for Webench® Power Designer Applications - - - - Point of load conversions from 12V and 24V input rail Time critical projects Space constrained / high thermal requirement applications Negative output voltage applications Radiated Emissions (EN 55022 Class B) from Evaluation Board © 2010 National Semiconductor Corporation .national. Simplified Application Schematic Connection Diagram Top View 7-Lead TO-PMOD Ordering Information Order Number LMZ14203TZ-ADJ .. LMZ14203TZX-ADJ Package Type TO-PMOD-7 TO-PMOD-7 NSC Package Drawing TZA07A TZA07A Supplied As 250 Units on Tape and Reel 500 Units on Tape and Reel Pin Descriptions 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 - An external resistor from VIN to this pin sets the on-time of the application. Typical values range from 25k to 100k ohms. Enable - Input to the precision enable parator. Rising threshold is 1.18V nominal; 90 m V hysteresis nominal. Maximum remended input level is 6.5V. Ground - Reference point for all stated voltages. Must be externally connected to EP. Soft-Start - An internal 8 µA current source...