MIC5208_02 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – Dual 50mA LDO Regulator

MIC5208
MIC5208
Dual 50mA LDO Regulator
Final Information
General Description
The MIC5208 is a dual linear voltage regulator with very low
dropout voltage (typically 20mV at light loads and 250mV at
50mA), very low ground current (225µA at 10mA output), and
better than 3% initial accuracy. It also features individual
logic-compatible enable/shutdown control inputs.
Designed especially for hand-held battery powered devices,
the MIC5208 can be switched by a CMOS or TTL compatible
logic signal, or the enable pin can be connected to the supply
input for 3-terminal operation. When disabled, power con-
sumption drops nearly to zero. Dropout ground current is
minimized to prolong battery life.
Key features include current limiting, overtemperature shut-
down, and protection against reversed battery.
The MIC5208 is available in 3.0V, 3.3V, 3.6V, 4.0V and 5.0V
fixed voltage configurations. Other voltages are available;
contact Micrel for details.
Features
• Micrel Mini 8™ MSOP package
• Guaranteed 50mA output
• Low quiescent current
• Low dropout voltage
• Wide selection of output voltages
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• Zero off-mode current
• Logic-controlled electronic enable
Applications
• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery powered equipment
• Bar code scanners
• SMPS post regulator/dc-to-dc modules
• High-efficiency linear power supplies
Micrel
Typical Application
Ordering Information
Part Number
Voltage Accuracy Junction Temp. Range*
MIC5208-3.0BMM 3.0
3%
–40°C to +125°C
MIC5208-3.3BMM 3.3
3%
–40°C to +125°C
MIC5208-3.6BMM 3.6
3%
–40°C to +125°C
MIC5208-4.0BMM 4.0
3%
–40°C to +125°C
MIC5208-5.0BMM 5.0
3%
–40°C to +125°C
Other voltages available. Contact Micrel for details.
Package
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
Output A
Output B
1µF 1µF
MIC5208
1
8
2
7
3
6 Enable A
4
5
Enable B
Enable may be connected to VIN
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
1997
1
MIC5208