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MIC5201

Micrel Semiconductor
Part Number MIC5201
Manufacturer Micrel Semiconductor
Description 200mA Low-Dropout Voltage Regulator
Published Mar 26, 2005
Detailed Description MIC5201 Micrel MIC5201 200mA Low-Dropout Voltage Regulator General Description The MIC5201 is an efficient linear vol...
Datasheet PDF File MIC5201 PDF File

MIC5201
MIC5201

Overview
MIC5201 Micrel MIC5201 200mA Low-Dropout Voltage Regulator General Description The MIC5201 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 MIC5201 can be switched by a CMOS or TTL compatible enable signal.
This enable control may be connected directly to VIN if unneeded.
When disabled, power consumption drops nearly to zero.
The ground current of the MIC5201 increases only slightly in dropout, further prolonging battery life.
Key MIC5201 features include current limiting, overtemperature shutdown, and protection against reversed battery.
The MIC5201 is available in several fixed voltages and accuracy configurations.
It features the same pinout as the LT1121 with better performance.
Other options are available; contact Micrel for details.
Features • • • • • • • • • • • • • • • • • • • • High output voltage accuracy Variety of output voltages Guaranteed 200mA output Low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Current and thermal limiting Reversed-battery protection Load-dump protection (fixed voltage versions) Zero off-mode current Logic-controlled electronic enable Available in SO-8 and SOT-223 packages Cellular telephones Laptop, notebook, and palmtop computers Battery powered equipment PCMCIA VCC and VPP regulation/switching Bar code scanners SMPS post-regulator/ dc-to-dc modules High-efficiency linear power supplies Applications Ordering Information Part Number MIC5201BM MIC5201-3.
0BM MIC5201-3.
3BM MIC5201-5.
0BM MIC5201-3.
0BS MIC5201-3.
3BS MIC5201-4.
8BS MIC5201-5.
0BS Voltage Adj 3.
0 3.
3 5.
0 3.
0 3.
3 4.
85 5.
0 Junction Temp.
Range* –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C t...


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