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MIC5208 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – Dual 50mA LDO Voltage Regulator Preliminary Information | |||
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MIC5208
Micrel
MIC5208
Dual 50mA LDO Voltage Regulator
Preliminary 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
Typical Application
Ordering Information
Part Number
Voltage Accuracy Junction Temp. Range*
MIC5208-3.0BMM 3.0
3%
â40°C to +125°C
MIC5208-3.3BMM 3.3
3%
â40°C to +125°C
MIC5208-3.6BMM 3.6
3%
â40°C to +125°C
MIC5208-4.0BMM 4.0
3%
â40°C to +125°C
MIC5208-5.0BMM 5.0
3%
â40°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
3-168
1997
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