SS8061G Datasheet, PDF (1/6 Pages) Silicon Standard Corp. – 1A Low Dropout Regulator with Enable

SS8061G
1A Low Dropout Regulator with Enable
FEATURES
Adjustable output from 1.2V to 4.8V
Output voltage options 1.5V, 1.8V and 2.5V
(externally adjustable using resistors)
Over-current and over-temperature protection
Dropout voltage of 400mV at 1A load
Enable pin
Quiescent current of 10µA in shutdown
SOT-89-5 Package
APPLICATIONS
Battery-powered systems
Motherboards
Peripheral cards
Network cards
Set Top Boxes
Medical Equipment
Notebook Computers
DESCRIPTION
The SS8061 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 1 Amps. Since it has
superior dropout characteristics compared to regular
LDOs, it can be used to supply 2.5V on motherboards
or 1.5V, 1.8V on peripheral cards from the 3.3V supply
thus allowing the elimination of costly heatsinks. An
enable-pin further reduces power dissipation while in
shut-down. The SS8061 provides excellent regulation
over variations in line, load and temperature.
The SS8061 is available with 1.5V, 1.8V and 2.5V
internally preset outputs that are also adjustable using
external resistors.
ORDERING INFORMATION
SS8061-15GTETR
SS8061-18GTETR
SS8061-25GTETR
1.5V output, in SOT89-5 with Pb-free lead finish, shipped on tape and reel.
1.8V output, in SOT89-5 with Pb-free lead finish, shipped on tape and reel.
2.5V output, in SOT89-5 with Pb-free lead finish, shipped on tape and reel.
This device is only available with Pb-free lead finish (second-level interconnect).
PIN CONFIGURATION
TYPICAL APPLICATION CIRCUIT
SS8061G
VIN
VEN
5
4
1
2
3
ADJ GND VO
SOT-89-5
1/21/2005 Rev.2.01
VEN
VIN
VO
C1
22µF
R3
I_ENH
R1
C2
47µF
R2
SS8061G
VEN
VIN
VO
ADJ
GND
1.2 (R1+R2)
VO =
Volts
R2
R2=12kΩ is recommended
R3 should be connected for current I_ENH
restriction as V_EN > V_IN+0.3V
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