MIC5210
Micrel
MIC5210
Dual 100mA LDO Regulator
Advance Information
General Description
Features
The MIC5210 is a dual linear voltage regulator with very low • Micrel Mini 8™ MSOP package
dropout voltage (typically 10mV at light loads and 140mV at • Guaranteed 100mA outputs
100mA),verylowgroundcurrent(225µAat10mAoutput),and • Low quiescent current
better than 3% initial accuracy. It also features individual • Low dropout voltage
logic-compatible enable/shutdown control inputs.
• 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
Designed especially for hand-held battery powered devices,
the MIC5210 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.
• Logic-controlled electronic enable
Key features include current limiting, overtemperature shut-
down, and protection against reversed battery.
Applications
The MIC5210 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.
• 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
Ordering Information
Part Number
Voltage
3.0
Accuracy Junction Temp. Range*
Package
MIC5210-3.0BMM
MIC5210-3.3BMM
MIC5210-3.6BMM
MIC5210-4.0BMM
MIC5210-5.0BMM
1.0%
1.0%
1.0%
1.0%
1.0%
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
3.3
3.6
4.0
5.0
Other voltages available. Contact Micrel for details.
Typical Application
MIC5210
1
2
3
4
8
7
6
5
Output A
Enable A
Enable B
1µF
Output B
2.2µF
1µF
CBYP
470µF
Enable may be connected to V
IN
Low-Noise + Ultralow-Noise (Dual) Regulator
MM8 and Micrel Mini 8 are trademarks of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
April 1997•
1
MIC5210