MIC5202 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – Dual 100mA Low-Dropout Voltage Regulator Preliminary Information

MIC5202
Micrel
MIC5202
Dual 100mA Low-Dropout Voltage Regulator
Preliminary Information
General Description
Features
The MIC5202 is a family of dual linear voltage regulators with _{• High output voltage accuracy}
very low dropout voltage (typically 17mV at light loads and _{• Variety of output voltages}
210mV at 100mA), and very low ground current (1mA at _{• Guaranteed 100mA output}
100mA output–each section), offering better than 1% initial _{• Low quiescent current}
accuracy with a logic compatible ON/OFF switching input. _{• Low dropout voltage}
Designed especially for hand-held battery powered devices, _{• Extremely tight load and line regulation}
the MIC5202 is switched by a CMOS or TTL compatible logic _{• Very low temperature coefficient}
signal. This ENABLE control my be tied directly to V_IN if _{• Current and thermal limiting}
unneeded. When disabled, power consumption drops nearly _{• Reverse-battery protection}
to zero. The ground current of the MIC5202 increases only _{• Zero OFF mode current}
slightly in dropout, further prolonging battery life. Key MIC5202 _{• Logic-controlled electronic shutdown}
features include protection against reversed battery, current _{• Available in SO-8 package}
limiting, and over-temperature shutdown.
The MIC5202 is available in several fixed voltages. Other
options are available; contact Micrel for details.
Applications
• Cellular Telephones
• Laptop, Notebook, and Palmtop Computers
3
• 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
Ordering Information
Part Number Volts Accuracy Temperature Range* Package
MIC5202-3.0BM 3.0
1%
–40°C to +125°C
SO-8
MIC5202-3.3BM 3.3
1%
–40°C to +125°C
SO-8
MIC5202-4.8BM 4.85
1%
–40°C to +125°C
SO-8
MIC5202-5.0BM 5.0
1%
–40°C to +125°C
SO-8
* Junction Temperature
Other voltages are available; contact Micrel for details.
Typical Application
Pin Configuration
VOUT (A)
GROUND
VOUT (B)
GROUND
VIN (A)
ENABLE (A)
VIN (B)
ENABLE (B)
MIC5202-xxBM
Both GROUND pins must be tied to
the same potential. V_IN (A) and V_IN (B) may run
from separate supplies.
Output A
Output B
1µ (x2)
MIC5202-3.3
Enable A
Enable B
July 1998
ENABLE pins may be tied directly to V_IN
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