General Description
The MIC39100, MIC39101, and MIC39102 are 1A low-dropout 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 410mV at 1A) and low ground current (typically 11mA at 1A).

FEATUREs
•  Fixed and adjustable output voltages to 1.24V
•  410mV 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
•  PowerPC™ power supplies
•  High-efficiency linear power supplies
•  SMPS post regulator
•  Multimedia and PC processor supplies
•  Battery chargers
•  Low-voltage microcontrollers and digital logic