MIC5268_06 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – 150mA μCap CMOS LDO Regulator w/Power Good

MIC5268
150mA µCap CMOS LDO Regulator
w/Power Good
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
push-pull 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.
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 V_CC and V_PP regulation/switching
Ordering Information
Part Number
Marking
Standard
Pb-Free
Standard Pb-Free
MIC5268-1.2BM5 MIC5268-1.2YM5
L512
L512
Note:
1. Other Voltage available. Contact Micrel Marketing for details.
Voltage
1.2V
Junction
Temp. Range⁽¹⁾
–40° to +125°C
Package
5-Pin SOT-23
Typical Application
47k
V_IN
MIC5268-x.xBM5/YM5
1
5
2
Enable
3
4
Shutdown
EN
V_OUT
C _OUT
PG
1.2V Regulator with Power Good
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
September 2006
1
M9999-91506