MIC5250

•Cellular phones and pagers
•Cellular accessories
•Battery-powered equipment
•Laptop, notebook, and palmtop computers
•PCMCIA VCC and VPP regulation/switching
•Consumer/personal electronics
•SMPS post-regulator/dc-to-dc modules
•High-efficiency linear power supplies

_{^{Supply Input Voltage (VIN) .................................. 0V to +7V
Enable Input Voltage (VEN) ................................. 0V to +7V
Junction Temperature (TJ) .....................................+150°C
Storage Temperature .............................65°C to +150°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
ESD, Note 3}}

The MIC5250 is an efficient, precise dual CMOS voltage regulator optimized for ultra-low-noise applications. The
MIC5250 offers better than 1% initial accuracy, extremely low dropout voltage (typically 150mV at 150mA) and
constant ground current over load (typically 100A). The MIC5250 provides a very-low-noise output, ideal for
RF applications where quiet voltage sources are required. A noise bypass pin is also available for further
reduction of output noise. Designed specifically for hand-held and battery-powered devices, the MIC5250
provides TTL logic compatible enable pins. When disabled, power consumption drops nearly to zero. The
MIC5250 also works with low-ESR ceramic capacitors,reducing the amount of board space necessary for
power applications, critical in hand-held wireless devices. Key features include current limit, thermal
shutdown, pushpull outputs for faster transient response, and active clamps to speed up device turnoff.
Available in the 10-lead MSOP (micro-shrink-outline package), the MIC5250 also offers a range of fixed
output voltages.