MIC5202
Micrel
MIC5202
Dual 100mA Low-Dropout Regulator
General Description
Features
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 if un-
needed. When disabled, power consumption dropsINnearly
to zero. The ground current of the MIC5202 increases only
slightlyindropout,furtherprolongingbatterylife. KeyMIC5202
features include protection against reversed battery, current
limiting, and over-temperature shutdown.
•
•
•
•
•
•
•
•
•
•
•
•
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
The MIC5202 is available in several fixed voltages. Other
options are available; contact Micrel for details.
•
•
•
•
•
•
•
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
Ordering Information
Part Number
Volts
Accuracy
Temperature Range
Package
Standard
Pb-Free
MIC5202-3.0BM MIC5202-3.0YM
MIC5202-3.3BM MIC5202-3.3YM
MIC5202-4.8BM MIC5202-4.8YM
MIC5202-5.0BM MIC5202-5.0YM
3.0
3.3
1%
1%
1%
1%
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
SO-8
SO-8
SO-8
SO-8
4.85
5.0
* Junction Temperature
Other voltages are available; contact Micrel for details.
Typical Application
Pin Configuration
V
(A)
V
(A)
OUT
GROUND
(B)
IN
ENABLE ()A
(B)
MIC5202-33.
Output A
Output B
V
V
OUT
GROUND
IN
ENABLE ()B
EnableA
EnableB
MIC5202-xxBM
1µ (x2)
Both GROUND pins must be tied to
the same potential. V (A) and VIN (B) may run
from separate supplieIsN.
ENABLE pins may be tied directly to VIN
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
March 2006
1
MIC5202