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
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
•
•
•
•
•
•
•
•
•
•
•
•
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
signal. This ENABLE control my be tied directly to V if
IN
unneeded. When disabled, power consumption drops nearly
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.
Logic-controlled electronic shutdown
Available in SO-8 package
Applications
3
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 V and V Regulation/Switching
CC
PP
Bar Code Scanners
SMPS Post-Regulator/ DC to DC Modules
High Efficiency Linear Power Supplies
Ordering Information
Pin Configuration
Part Number
Volts Accuracy Temperature Range* Package
V
(A)
MIC5202-3.0BM 3.0
MIC5202-3.3BM 3.3
MIC5202-4.8BM 4.85
MIC5202-5.0BM 5.0
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
V
(A)
OUT
GROUND
(B)
IN
ENABLE (A)
(B)
V
V
OUT
GROUND
IN
ENABLE (B)
MIC5202-xxBM
Both GROUND pins must be tied to
the same potential. VIN (A) and VIN (B) may run
from separate supplies.
* Junction Temperature
Other voltages are available; contact Micrel for details.
Typical Application
MIC5202-3.3
Output A
Output B
Enable A
Enable B
1µ (x2)
ENABLE pins may be tied directly to VIN
July 1998
3-135