MIC5248_06 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – 150mA μCap CMOS LDO Regulator w/Power Good

MIC5248
150mA µCap CMOS LDO Regulator
w/Power Good
General Description
The MIC5248 is an efficient, general purpose 1.2V CMOS
voltage regulator with a power good output function. The
MIC5248 offers better than 3%initial accuracy, and
constant ground current (typically 100µA) over load.
The MIC5248 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in handheld wireless
devices.
Key features include current limit, thermal shutdown, a
push-pull output for faster transient response, and an
active clamp to speed up device turnoff. Available in the
IttyBitty™ SOT-23-5 and the tiny 6-pin 2mm x 2mm MLF^®
package.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• Power Good indicator
• Load independent, ultra-low 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
Typical Application
MIC5248-x.xBM5/YM5/YML
VIN
VOUT
GND
EN
PG
C_OUT
Low-Noise Regulator Application
IttyBitty is a trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
August 2006
M9999-080106