LK115D55
SGS Thomson Microelectronics LK115D55, LK115D47, LK115D40, LK115D33, LK115D20 Datasheet
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LK115D00
SERIES
VERY LOW DROP WITH INHIBIT
VOLTAGE REGULATORS
September 1998
■ VERYLOWDROPOUT VOLTAGE(0.2VTYP.)
■ VERYLOWQUIESCENT CURRENT
(TYP.0.01µA IN OFFMODE, 280µAINON
MODE)
■ OUTPUT CURRENT UP TO 100 mA
■ TWOLOGIC-CONTROLLEDELECTRONIC
SHUTDOWNS
■ OUTPUT VOLTAGESOF2;2.5; 3; 3.3; 4;
4.75;4.85; 5;5.5V
■ INTERNAL CURRENT AND THERMALLIMIT
■ ONLY2.2µF FOR STABILITY
■ V
OUT
TOLLERANCE ±3% AT 25
o
C
■ SUPPLYVOLTAGEREJECTION:80 db (TYP.)
■ TEMPERATURE RANGE:-40 TO 125
o
C
DESCRIPTION
The LK115D00 series are very Low Drop
regulators available in SO-8 package and in a
wide range of output voltages.
The very Low Drop voltage (0.2V) and the very
low quiescent current (0.01µA in OFF MODE,
BLOCK DIAGRAM
SO-8
280µA in ON MODE) make them particularly
suitable for Low Noise, Low Power applications
and speciallyin battery poweredsystems.
Both active HIGH and active LOW shutdown
Logic Control are available (pin2 and 3). This
means that when the device is used as a local
regulator, it is possibleto put a part of the board
in standby, decreasing the total power
consumption. It requires only a 2.2 µF capacitor
for stability allowing space and cost saving.
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CONNECTION DIAGRAM (topview)
ORDERING NUMBERS
Type Output Voltage
LK115D20
LK115D25
LK115D30
LK115D33
LK115D40
LK115D47
LK115D48
LK115D50
LK115D55
2V
2.5 V
3V
3.3 V
4V
4.75 V
4.85 V
5V
5.5 V
(*) Available onrequest
ABSOLUTE MAXIMUMRATINGS
Symbol Parameter Value Unit
V
i
DC InputVoltage 20 V
I
o
OutputCurrent Internally limited
P
tot
Power Dissipation Internally limited
T
stg
StorageTemperatureRange - 40 to 150
o
C
T
op
Operating Junction Temperature Range - 40 to 125
o
C
LK115D00 SERIES
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TEST CIRCUITS: Supply Current (ON MODE)
TEST CIRCUITS: Supply Current (OFF MODE)
THRUTH TABLE
ON/OFF
(PIN 2)
ON/OFF
(PIN 3)
STATUS
HLON
HHOFF
LLOFF
L H NOT ALLOWED
NOTES: Logic Levels are those defined in the electrical characteristics
NOTE: The switch emulates the two possibilities to set the regulator in OFF mode.
LK115D00 SERIES
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