MIC5268
Micrel
MIC5268
150mA µCap CMOS LDO Regulator w/Power Good Preliminary Information
General Description
The MIC...
MIC5268
Micrel
MIC5268
150mA 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 IttyBitty™ SOT-23-5 package, the MIC5268 is a fixed 1.2V
regulator.
Features
Power Good indicator Load independent, ultralow ground current: 100µA 150mA 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 computers 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.xBM5
1 2 Enable Shutdown 3 4 5
VOUT COUT PG
EN
EN (pin 3) may be connected directly to IN (pin 1).
1.2V
Regulator with Power Good
Itty...