LMZ12003 Datasheet | National Semiconductor

Features - Integrated shielded inductor - Simple PCB layout - Flexible startup sequencing using external soft-start capacitor and precision enable UVLO and output short circuit Thermal derating curve VIN = 12V VOUT = 5.0V - Protection against inrush currents and faults such as input - -40°C to 125°C junction temperature range - Single exposed pad and standard pinout for easy mounting and manufacturing - Fast transient response for 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 Webench® Power Designer enabled Radiated Emissions (EN 55022 Class B) from Evaluation Board Applications - - - - Point of load conversions from 5V and 12V input rail Time critical projects Space constrained high thermal requirement applications Negative output voltage applications (See AN-2027) © 2010 National Semiconductor Corporation .national. Data Sheet.in Simplified Application Schematic Connection Diagram Top View 7-Lead TO-PMOD Ordering Information Order Number LMZ12003TZ-ADJ LMZ12003TZX-ADJ LMZ12003TZE-ADJ Package Type TO-PMOD-7 TO-PMOD-7 TO-PMOD-7 NSC Package Drawing TZA07A TZA07A TZA07A Supplied As 250 Units on Tape and Reel 500 Units on Tape and Reel 45 Units in a Rail Pin Descriptions Pin 1 2 3 4 5 6 Name Description VIN RON EN GND SS FB Supply input - Nominal operating range is 4.5V to 20V . 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 124k 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...