MIC39150 Datasheet | Micrel Semiconductor

Description The MIC39150 and MIC39151 are 1.5A low-dropout linear voltage regulators that provide a low voltage, high current output with a minimum of external ponents. Utilizing Micrel’s proprietary Super βeta PNP™ pass element, the MIC39150/1 offers extremely low dropout (typically 375m V at 1.5A) and low ground current (typically 17m A at 1.5A). The MIC39150/1 is ideal for PC add-in cards that need to convert from 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 500m V over all operating conditions allows the MIC39150/1 to provide 2.5V from a supply as low as 3V or 1.8V from a supply as low as 2.3V. The MIC39150/1 also has fast transient response for heavy switching applications. This device requires only 10µF of output capacitance to maintain stability and achieve fast transient response The MIC39150/1 is fully protected with overcurrent limiting, thermal shutdown, reversed-battery protection, reversedlead insertion, and reverse-leakage protection. The MIC39151 offers a TTL-logic patible enable pin and an error flag that indicates undervoltage and over current conditions. Offered in fixed voltages of 2.5V and 1.8V, the MIC39150/1 es in the TO-220 and TO-263 packages and is an ideal upgrade to older, NPN-based linear voltage regulators. Features - 1.5A minimum guaranteed output current - 500m V maximum dropout voltage over temperature Ideal for 3.0V to 2.5V conversion Ideal for 2.5 to 1.8V conversion - 1% initial accuracy - Low ground current - Current limiting and Thermal shutdown - Reversed-battery and reversed lead insertion protection - Reversed-leakage protection - Fast transient response - TO-263 and TO-220 packaging - TTL/CMOS patible enable pin (MIC39151 only) - Error flag output (MIC39151 only) Applications - - - - - - Low-voltage digital ICs LDO linear regulator for PC add-in cards High-efficiency linear power supplies SMPS post regulator Low-voltage microcontrollers Strong ARM™ processor supply For applications requiring input...