LK115D00
SERIES
VERY LOW DROP WITH INHIBIT
VOLTAGE REGULATORS
s
s
s
s
s
s
s
s
s
s
VERY LOW DROPOUT VOLTAGE
(0.2 V TYP.)
VERY LOW QUIESCENT CURRENT
(TYP. 0.01µA IN OFF MODE, 280µA IN ON
MODE)
OUTPUT CURRENT UP TO 100mA
TWO LOGIC-CONTROLLED ELECTRONIC
SHUTDOWNS
OUTPUT VOLTAGES OF 2; 2.5; 3.0; 3.3; 4;
4.75; 4.85; 5; 5.5 V
INTERNAL CURRENT AND THERMAL LIMIT
ONLY 2.2µF FOR STABILITY
V
OUT
TOLLERANCE ± 3% AT 25°C
SUPPLY VOLTAGE REJECTION: 80dB (TYP)
TEMPERATURE RANGE: -40°C TO 125°C
SO-8
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,
280µA in ON MODE) make them particularly
suitable for Low Noise, Low Power applications
and specially in battery powered systems.
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 possible to 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.
SCHEMATIC DIAGRAM
February 2003
1/11
LK115D00 SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol
V
I
I
O
P
tot
T
stg
T
op
DC Input Voltage
Output Current
Power Dissipation
Storage Temperature Range
Operating Junction Temperature Range
Parameter
Value
20
Internally limited
Internally limited
-40 to 150
-40 to 125
°C
°C
Unit
V
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
CONNECTION DIAGRAM
(top view)
ORDERING CODES
TYPE
LK115D20
LK115D25
LK115D30
LK115D33
LK115D40
LK115D47
LK115D48
LK115D50
LK115D55
OUTPUT VOLTAGE
2V
2.5 V
3V
3.3 V
4V
4.75 V
4.85 V
5V
5.5 V
TRUTH TABLE
ON/OFF (PIN 2)
H
H
L
L
ON/OFF (PIN 3)
L
H
L
H
STATUS
ON
OFF
OFF
NOT ALLOWED
NOTES: Logic Levels are those defined in the electrical characteristics.
2/11
LK115D00 SERIES
TEST CIRCUITS:
Supply Current (ON MODE)
TEST CIRCUITS:
Supply Current (OFF MODE)
NOTE: The switch emulates the two possibilities to set the regulator in OFF mode.
3/11
LK115D00 SERIES
ELECTRICAL CHARACTERISTICS FOR LK115D20
(refer to the test circuits, T
J
= 25°C, C
I
= 0.1µF,
C
O
= 2.2µF unless otherwise specified)
Symbol
V
O
V
I
I
out
∆V
O
∆V
O
I
d
Parameter
Output Voltage
Operating Input Voltage
Output Current Limit
Line Regulation
Load Regulation
Quiescent Current
(On Mode)
(Off Mode)
SVR
Supply Voltage Rejection
V
I
= 3 to 20 V
V
I
= 3 V
V
I
= 3 to 20 V
V
I
= 3 to 20 V
V
I
= 3 to 20 V
I
O
= 5 mA
V
I
= 4 V ± 1V
f = 120Hz
f = 1 KHz
f = 10 KHz
B = 10 Hz to 100 KHz
I
O
= 60 mA
I
O
=
0.5 mA
I
O
=
0.5 to 100 mA
I
O
= 0
I
O
= 100 mA
Test Conditions
I
O
= 10 mA, V
I
= 4 V
I
O
= 10 mA, V
I
= 4 V, T
a
= -40 to 125
°C
I
O
= 100 mA
120
200
2
4
0.28
1.5
0.01
83
78
59
44
0.17
0
2.4
V
in
-0.2
0
2
10
0.5
V
in
V
in
V
in
-2.4
µF
V
10
20
0.5
3
2
µA
dB
Min.
1.940
1.9
Typ.
2
Max.
2.060
2.1
20
V
mA
mV
mV
mA
Unit
V
eN
V
d
V
HIc
V
LIc
C
O
Output Noise Voltage (RMS)
Dropout Voltage
ON/OFF Control (pin 2)
ON/OFF Control (pin 3)
µV
V
V
Pin 3 to GND
Pin 3 to GND
Pin 2 to
V
in
Pin 2 to
V
in
OFF
ON
OFF
ON
Output Bypass Capacitance
ESR = 0.5 to 10
Ω,
I
O
=
0 to 100 mA
ELECTRICAL CHARACTERISTICS FOR LK115D25
(refer to the test circuits, T
J
= 25°C, C
I
= 0.1µF,
C
O
= 2.2µF unless otherwise specified)
Symbol
V
O
V
I
I
out
∆V
O
∆V
O
I
d
Parameter
Output Voltage
Operating Input Voltage
Output Current Limit
Line Regulation
Load Regulation
Quiescent Current
(On Mode)
(Off Mode)
SVR
Supply Voltage Rejection
V
I
= 3.5 to 20 V
V
I
= 3.5 V
V
I
= 3.5 to 20 V
V
I
= 3.5 to 20 V
V
I
= 3.5 to 20 V
I
O
= 5 mA
V
I
= 4.5 V ± 1V
f = 120Hz
f = 1 KHz
f = 10 KHz
B = 10 Hz to 100 KHz
I
O
= 60 mA
I
O
=
0.5 mA
I
O
=
0.5 to 100 mA
I
O
= 0
I
O
= 100 mA
Test Conditions
I
O
= 10 mA, V
I
= 4.5 V
I
O
= 10 mA, V
I
= 4.5 V, T
a
= -40 to 125
°C
I
O
= 100 mA
Min.
2.425
2.375
120
200
2
4
0.28
1.5
0.01
81
76
58
55
0.17
0
2.4
V
in
-0.2
0
2
10
0.5
V
in
V
in
V
in
-2.4
µF
V
10
20
0.5
3
2
µA
dB
Typ.
2.5
Max.
2.575
2.625
20
V
mA
mV
mV
mA
Unit
V
eN
V
d
V
HIc
V
LIc
C
O
4/11
Output Noise Voltage (RMS)
Dropout Voltage
ON/OFF Control (pin 2)
ON/OFF Control (pin 3)
µV
V
V
Pin 3 to GND
Pin 3 to GND
Pin 2 to
V
in
Pin 2 to
V
in
OFF
ON
OFF
ON
Output Bypass Capacitance
ESR = 0.5 to 10
Ω,
I
O
=
0 to 100 mA
LK115D00 SERIES
ELECTRICAL CHARACTERISTICS FOR LK115D30
(refer to the test circuits, T
J
= 25°C, C
I
= 0.1µF,
C
O
= 2.2µF unless otherwise specified)
Symbol
V
O
V
I
I
out
∆V
O
∆V
O
I
d
Parameter
Output Voltage
Operating Input Voltage
Output Current Limit
Line Regulation
Load Regulation
Quiescent Current
(On Mode)
(Off Mode)
SVR
Supply Voltage Rejection
V
I
= 4 to 20 V
V
I
= 4 V
V
I
= 4 to 20 V
V
I
= 4 to 20 V
V
I
= 4 to 20 V
I
O
= 5 mA
V
I
= 5 V ± 1V
f = 120Hz
f = 1 KHz
f = 10 KHz
B = 10 Hz to 100 KHz
I
O
= 60 mA
I
O
=
0.5 mA
I
O
=
0.5 to 100 mA
I
O
= 0
I
O
= 100 mA
Test Conditions
I
O
= 10 mA, V
I
= 5 V
I
O
= 10 mA, V
I
= 5 V, T
a
= -40 to 125
°C
I
O
= 100 mA
120
200
2
4
0.28
1.5
0.01
79
74
57
66
0.17
0
2.4
V
in
-0.2
0
2
10
0.5
V
in
V
in
V
in
-2.4
µF
V
10
20
0.5
3
2
µA
dB
Min.
2.910
2.850
Typ.
3
Max.
3.090
3.150
20
V
mA
mV
mV
mA
Unit
V
eN
V
d
V
HIc
V
LIc
C
O
Output Noise Voltage (RMS)
Dropout Voltage
ON/OFF Control (pin 2)
ON/OFF Control (pin 3)
µV
V
V
Pin 3 to GND
Pin 3 to GND
Pin 2 to
V
in
Pin 2 to
V
in
OFF
ON
OFF
ON
Output Bypass Capacitance
ESR = 0.5 to 10
Ω,
I
O
=
0 to 100 mA
ELECTRICAL CHARACTERISTICS FOR LK115D33
(refer to the test circuits, T
J
= 25°C, C
I
= 0.1µF,
C
O
= 2.2µF unless otherwise specified)
Symbol
V
O
V
I
I
out
∆V
O
∆V
O
I
d
Parameter
Output Voltage
Operating Input Voltage
Output Current Limit
Line Regulation
Load Regulation
Quiescent Current
(On Mode)
(Off Mode)
SVR
Supply Voltage Rejection
V
I
= 4.3 to 20 V
V
I
= 4.3 V
V
I
= 4.3 to 20 V
V
I
= 4.3 to 20 V
V
I
= 4.3 to 20 V
I
O
= 5 mA
V
I
= 5.3 V ± 1V
f = 120Hz
f = 1 KHz
f = 10 KHz
B = 10 Hz to 100 KHz
I
O
= 60 mA
I
O
=
0.5 mA
I
O
=
0.5 to 100 mA
I
O
= 0
I
O
= 100 mA
Test Conditions
I
O
= 10 mA, V
I
= 5.3 V
I
O
= 10 mA, V
I
= 5.3 V, T
a
= -40 to 125
°C
I
O
= 100 mA
120
200
2
4
0.28
1.5
0.01
79
74
57
72.6
0.17
0
2.4
V
in
-0.2
0
2
10
0.5
V
in
V
in
V
in
-2.4
µF
5/11
V
10
20
0.5
3
2
µA
dB
Min.
3.2
3.135
Typ.
3.3
Max.
3.4
3.465
20
V
mA
mV
mV
mA
Unit
V
eN
V
d
V
HIc
V
LIc
C
O
Output Noise Voltage (RMS)
Dropout Voltage
ON/OFF Control (pin 2)
ON/OFF Control (pin 3)
µV
V
V
Pin 3 to GND
Pin 3 to GND
Pin 2 to
V
in
Pin 2 to
V
in
OFF
ON
OFF
ON
Output Bypass Capacitance
ESR = 0.5 to 10
Ω,
I
O
=
0 to 100 mA
