MIC39100 Datasheet | Micrel Semiconductor

Description The MIC39100, MIC39101, and MIC39102 are 1A lowdropout linear voltage regulators that provide low-voltage, high-current output from an extremely small package. Utilizing Micrel’s proprietary Super βeta PNP™ pass element, the MIC39100/1/2 offers extremely low dropout (typically 410m V at 1A) and low ground current (typically 11m A at 1A). The MIC39100 is a fixed output regulator offered in the SOT-223 package. The MIC39101 and MIC39102 are fixed and adjustable regulators, respectively, in a thermally enhanced power 8-lead SOP (small outline package). The MIC39100/1/2 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 630m V over all operating conditions allows the MIC39100/1/2 to provide 2.5V from a supply as low as 3.13V and 1.8V from a supply as low as 2.43V. The MIC39100/1/2 is fully protected with overcurrent limiting, thermal shutdown, and reversed-battery protection. Fixed voltages of 5.0V, 3.3V, 2.5V, and 1.8V are available on MIC39100/1 with adjustable output voltages to 1.24V on MIC39102. Features - Fixed and adjustable output voltages to 1.24V - 410m V typical dropout at 1A Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V conversion - 1A minimum guaranteed output current - 1% initial accuracy - Low ground current - Current limiting and thermal shutdown - Reversed-battery protection - Reversed-leakage protection - Fast transient response - Low-profile SOT-223 package - Power SO-8 package Applications - - - - - - - LDO linear regulator for PC add-in cards Power PC™ power supplies High-efficiency linear power supplies SMPS post regulator Multimedia and PC processor supplies Battery chargers Low-voltage microcontrollers and digital logic For other voltages, contact Micrel. Ordering Information Part Number MIC39100-1.8BS MIC39100-2.5BS MIC39100-3.3BS MIC39100-5.0BS MIC39101-1.8BM MIC39101-2.5BM MIC39101-3.3BM MIC39101-5.0BM MIC39102BM Voltage 1.8V...