MIC37252WR Microchip

MIC37252 2.5A, Low Voltage Cap LDO Regulator General Description Features The Micrel MIC37252 is a 2.5A low-dropout linear voltage 2.5A minimum guaranteed output current regulator that provides a low voltage, high current output Ideal for 3.3V to 1.8V conversion with a minimum of external components. It offers high Stable with ceramic or tantalum capacitor precision, low dropout and low ground current. 2.0% initial output tolerance The MIC37252 operates from an input voltage of 3.0V Dropout voltage = 550mV 2.5A to6.0V. It is designed to drive digital circuits requiring low Excellent line and load regulation specifications voltage at high currents (i.e., PLDs, DSP, microcontroller, Logic controlled shutdown etc.). It is available in an adjustable output voltage capable Thermal shutdown and current limit protection of 1.24V to 5.5V. Reverse-leakage protection Features of the MIC37252 LDO include thermal and S-Pak and TO-263 packages current limit protection, and reverse current and reverse battery protection. Applications Junction temperature range of the MIC37252 is from 40C to +125C. LDO linear regulator for low-voltage digital IC PC add-in cards For higher currents see the MIC3730x family of LDOs. High efficiency linear power supplies SMPS post regulator Battery charger Typical Application Adjustable Regulator SuperSwitcher and Super eta PNP are trademarks of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC37252 Ordering Information Part Number Output Junction Voltage* Package Current Temperature Range Standard RoHS Compliant** MIC37252BR MIC37252WR 2.5A Adj. 40 to +125C S-Pak-5 MIC37252BU MIC37252WU 2.5A Adj. 40 to +125C TO-263-5 *For other voltages, please contact Micrel Marketing. **RoHS compliant with high melting solder exemption. Pin Configuration S-PAK5 (R) TO-263 (U) Pin Description Pin Number Pin Name Pin Function 1 EN Enable (Input): CMOS compatible input. Logic high = enable, logic low = shutdown. 2 VIN Input voltage which supplies current to the output power device. 3 GND Ground (TAB is connected to ground on S-Pak). 4 VOUT Regulator Output. 5 ADJ Adjustable regulator feedback input. Connect to resistor voltage divider. M9999-021606 February 2006 2 (408) 955-1690