MIC5268 Datasheet | Micrel Semiconductor

Micrel 150m A µCap CMOS LDO Regulator w/Power Good Preliminary Information General Description The MIC5268 is an efficient, precise CMOS voltage regulator with power good output. The MIC5268 offers better than 3% initial accuracy, and constant ground current (typically 100µA)over load . The MIC5268 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, a pushpull output for faster transient response, and an active clamp to speed up device turnoff. Available in the Itty Bitty™ SOT-23-5 package, the MIC5268 is a fixed 1.2V regulator. Features - - - - - - - - - - Power Good indicator Load independent, ultralow ground current: 100µA 150m A output current Current limiting Thermal shutdown Tight load and line regulation “Zero” off-mode current Stability with low-ESR capacitors Fast transient response TTL-Logic-controlled enable input Applications - Processor power-up sequencing - Laptop, notebook, and palmtop puters - PCMCIA VCC and VPP regulation/switching Ordering Information Part Number MIC5268-1.2BM5 Marking L512 Voltage 1.2 Junction Temp. Range- - 40°C to +125°C Package SOT-23-5 Other voltages available. Contact Micrel for details. Typical Application 47k VIN MIC5268-x.x BM5 1 2 Enable Shutdown 3 4 5 VOUT COUT PG EN (pin 3) may be connected directly to IN (pin 1). 1.2V Regulator with Power Good Itty Bitty is a trademark of Micrel, Inc. Micrel, Inc. - 1849 Fortune Drive - San Jose, CA 95131 - USA - tel + 1 (408) 944-0800 - fax + 1 (408)...