MIC5200_05 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – 100mA Low-Dropout Regulator

MIC5200
Micrel, Inc.
MIC5200
100mA Low-Dropout Regulator
General Description
The MIC5200 is an efficient linear voltage regulator with
very low dropout voltage (typically 17mV at light loads and
200mV at 100mA), and very low ground current (1mA at
100mA output), offering better than 1% initial accuracy with
a logic compatible ON/OFF switching input. Designed espe-
cially for hand-held battery powered devices, the MIC5200
is switched by a CMOS or TTL compatible logic signal. The
ENABLE control may be tied directly to V_IN if unneeded.
When disabled, power consumption drops nearly to zero.
The ground current of the MIC5200 increases only slightly in
dropout, further prolonging battery life. Key MIC5200 features
include protection against reversed battery, current limiting,
and over-temperature shutdown.
The MIC5200 is available in several fixed voltages and ac-
curacy configurations. Other options are available; contact
Micrel for details.
Features
• High output voltage accuracy
• Variety of output voltages
• Guaranteed 100mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Zero OFF mode current
• Logic-controlled electronic shutdown
• Available in 8-lead SOIC, MM8™ 8-lead MSOP,
and SOT-223 packages
Applications
• Cellular Telephones
• Laptop, Notebook, and Palmtop Computers
• Battery Powered Equipment
• PCMCIA V_CC and V_PP Regulation/Switching
• Bar Code Scanners
• SMPS Post-Regulator/ DC to DC Modules
• High Efficiency Linear Power Supplies
Typical Application
Output
1µF
MIC5200-3.3
Enable
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
M9999-040805
1
April 2005