MIC5200
Micrel
MIC5200
100mA Low-Dropout Voltage Regulator
Preliminary Information
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 especially 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 protec-
tion against reversed battery, current limiting, and over-
temperature shutdown.
The MIC5200 is available in several fixed voltages and
accuracy configurations. Other options are available; contact
Micrel for details.
Features
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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鈩?8-lead MSOP,
and SOT-223 packages
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
Applications
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3
Ordering Information
Part Number
MIC5200-3.0BM
MIC5200-3.3BM
MIC5200-4.8BM
MIC5200-5.0BM
MIC5200-3.3BMM
MIC5200-5.0BMM
MIC5200-3.0BS
MIC5200-3.3BS
MIC5200-4.8BS
MIC5200-5.0BS
Voltage
3.0
3.3
4.85
5.0
3.3V
5.0V
3.0
3.3
4.85
5.0
Accuracy
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
Junction Temp. Range*
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
Package
SO-8
SO-8
SO-8
SO-8
MSOP-8
MSOP-8
SOT-223
SOT-223
SOT-223
SOT-223
Other voltages available. Contact Micrel for details.
Typical Application
MIC5200-3.3
Output
1碌F
Enable
3-123
July 1998
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