MIC5202_06 Datasheet, PDF (1/7 Pages) Micrel Semiconductor – Dual 100mA Low-Dropout Regulator

MIC5202
Micrel
MIC5202
Dual 100mA Low-Dropout Regulator
General Description
The MIC5202 is a family of dual linear voltage regulators
with very low dropout voltage (typically 17mV at light loads
and 210mV at 100mA), and very low ground current (1mA at
100mA output–each section), offering better than 1% initial
accuracy with a logic compatible ON/OFF switching input.
Designed especially for hand-held battery powered devices,
the MIC5202 is switched by a CMOS or TTL compatible logic
signal. This ENABLE control my be tied directly to V_IN if un-
needed. When disabled, power consumption drops nearly
to zero. The ground current of the MIC5202 increases only
slightly in dropout, further prolonging battery life. Key MIC5202
features include protection against reversed battery, current
limiting, and over-temperature shutdown.
The MIC5202 is available in several fixed voltages. 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
• Reverse-battery protection
• Zero OFF mode current
• Logic-controlled electronic shutdown
• Available in SO-8 package
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
Ordering Information
Part Number
Standard
MIC5202-3.0BM
MIC5202-3.3BM
MIC5202-4.8BM
MIC5202-5.0BM
Pb-Free
MIC5202-3.0YM
MIC5202-3.3YM
MIC5202-4.8YM
MIC5202-5.0YM
Volts
3.0
3.3
4.85
5.0
Accuracy Temperature Range
1%
–40°C to +125°C
1%
–40°C to +125°C
1%
–40°C to +125°C
1%
–40°C to +125°C
* Junction Temperature
Other voltages are available; contact Micrel for details.
Package
SO-8
SO-8
SO-8
SO-8
Typical Application
Pin Configuration
Output A
Output B
1µ (x2)
MIC5202-33.
EnableA
EnableB
ENABLE pins may be tied directly to V_IN
VOUT (A)
GROUND
VO _{U T} (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.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
March 2006
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MIC5202