1/17
October 2003
s
VERY LOW DROPOUT VOLTAGE (0.4V)
s
VERY LOW QUIESCENT CURRENT (TYP.
50 A IN OFF MODE, 500 A IN ON MODE)
s
OUTPUT CURRENT UP TO 500 mA
s
LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s
OUTPUT VOLTAGES OF 1.25; 1.5; 2.5; 2.7;
3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 8.5;
12V
s
INTERNAL CURRENT AND THERMAL LIMIT
s
ONLY 2.2 F FOR STABILITY
s
AVAILABLE IN 2% ACCURACY AT 25 C
s
SUPPLY VOLTAGE REJECTION: 70 db
(TYP.)
s
TEMPERATURE RANGE: -40 TO 125 C
DESCRIPTION
The KF00 series are very Low Drop regulators
availablein SO-8 package and in a wide range of
output voltages.
The very Low Drop voltage (0.4V) and the very
low quiescent current make them particularly
suitable for Low Noise, Low Power applications
and specially in battery powered systems.
A Shutdown Logic Control function is available
(pin 5, TTL compatible). 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 F
capacitor for stability allowing space and cost
saving.
KF00
SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
SCHEMATIC DIAGRAM
SO-8
DPAK
KF00
2/17
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
CONNECTION DIAGRAM (top view)
ORDERING CODES
(*) Available on request.
(#) Available in Tape & Reel with the suffix "-TR".
Symbol
Parameter
Value
Unit
V
I
DC Input Voltage
-0.5 to 20
V
I
O
Output Current
Internally Limited
P
tot
Power Dissipation
Internally Limited
T
stg
Storage Temperature Range
-40 to 150
C
T
op
Operating Junction Temperature Range
-40 to 125
C
Symbol
Parameter
DPAK
SO-8
Unit
R
thj-case
Thermal Resistance Junction-case
8
20
C/W
TYPE
SO-8(#)
DPAK(#)
OUTPUT VOLTAGE
KF12(*)
KF12BD
KF12BDT
1.25 V
KF15
KF15BD
KF15BDT
1.5 V
KF25
KF25BD
KF25BDT
2.5 V
KF27
KF27BD
KF27BDT
2.7 V
KF30
KF30BD
KF30BDT
3 V
KF33
KF33BD
KF33BDT
3.3 V
KF35
KF35BD
KF35BDT
3.5 V
KF40
KF40BD
KF40BDT
4 V
KF45(*)
KF45BD
KF45BDT
4.5 V
KF47
KF47BD
KF47BDT
4.75 V
KF50
KF50BD
KF50BDT
5 V
KF52
KF52BD
KF52BDT
5.2 V
KF55(*)
KF55BD
KF55BDT
5.5 V
KF60
KF60BD
KF60BDT
6 V
KF80
KF80BD
KF80BDT
8 V
KF85
KF85BD
KF85BDT
8.5 V
KF120
KF120BD
KF120BDT
12 V
SO-8
DPAK
KF00
3/17
TEST CIRCUITS
ELECTRICAL CHARACTERISTICS FOR KF12 (refer to the test circuits, T
j
= 25C, C
I
= 0.1 F,
C
O
= 2.2
F unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 50 mA, V
I
= 3.3 V
1.225
1.25
1.275
V
I
O
= 50 mA, V
I
= 3.3 V, T
a
= -25 to 85C
1.2
1.3
V
I
Operating Input Voltage
I
O
= 500 mA
2.5
20
V
I
O
Output Current Limit
1
A
V
O
Line Regulation
V
I
= 2.5 to 20 V,
I
O
= 5 mA
2
12
mV
V
O
Load Regulation
V
I
= 2.8 V,
I
O
= 5 to 500 mA
2
50
mV
I
d
Quiescent Current
V
I
= 2.5 to 20V, I
O
= 0mA
(ON MODE)
0.5
1
mA
V
I
= 2.6 to 20V, I
O
= 500mA
12
V
I
= 6 V
(OFF MODE)
50
100
A
SVR
Supply Voltage Rejection
I
O
= 5 mA
V
I
= 3.5 1 V
f = 120 Hz
82
dB
f = 1 KHz
77
f = 10 KHz
60
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
V
V
d
Dropout Voltage
I
O
= 200 mA
1.25
V
V
IL
Control Input Logic Low
T
a
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
T
a
= -40 to 125C
2
V
I
I
Control Input Current
V
I
= 6 V,
V
C
= 6 V
10
A
C
O
Output Bypass Capacitance ESR = 0.1 to 10
I
O
= 0 to 500 mA
2
10
F
KF00
4/17
ELECTRICAL CHARACTERISTICS FOR KF15 (refer to the test circuits, T
j
= 25C, C
I
= 0.1 F,
C
O
= 2.2
F unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR KF25 (refer to the test circuits, T
j
= 25C, C
I
= 0.1 F,
C
O
= 2.2
F unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 50 mA, V
I
= 3.5 V
1.47
1.5
1.53
V
I
O
= 50 mA, V
I
= 3.5 V, T
a
= -25 to 85C
1.44
1.56
V
I
Operating Input Voltage
I
O
= 500 mA
2.5
20
V
I
O
Output Current Limit
1
A
V
O
Line Regulation
V
I
= 2.5 to 20 V,
I
O
= 5 mA
2
12
mV
V
O
Load Regulation
V
I
= 2.8 V,
I
O
= 5 to 500 mA
2
50
mV
I
d
Quiescent Current
V
I
= 2.5 to 20V, I
O
= 0mA
(ON MODE)
0.5
1
mA
V
I
= 2.8 to 20V, I
O
= 500mA
12
V
I
= 6 V
(OFF MODE)
50
100
A
SVR
Supply Voltage Rejection
I
O
= 5 mA
V
I
= 3.5 1 V
f = 120 Hz
82
dB
f = 1 KHz
77
f = 10 KHz
60
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
V
V
d
Dropout Voltage
I
O
= 200 mA
1
V
V
IL
Control Input Logic Low
T
a
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
T
a
= -40 to 125C
2
V
I
I
Control Input Current
V
I
= 6 V,
V
C
= 6 V
10
A
C
O
Output Bypass Capacitance ESR = 0.1 to 10
I
O
= 0 to 500 mA
2
10
F
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 50 mA, V
I
= 4.5 V
2.45
2.5
2.55
V
I
O
= 50 mA, V
I
= 4.5 V, T
a
= -25 to 85C
2.4
2.6
V
I
Operating Input Voltage
I
O
= 500 mA
20
V
I
O
Output Current Limit
1
A
V
O
Line Regulation
V
I
= 3.5 to 20 V,
I
O
= 5 mA
2
12
mV
V
O
Load Regulation
V
I
= 3.8 V,
I
O
= 5 to 500 mA
2
50
mV
I
d
Quiescent Current
V
I
= 3.5 to 20V, I
O
= 0mA
(ON MODE)
0.5
1
mA
V
I
= 3.8 to 20V, I
O
= 500mA
12
V
I
= 6 V
(OFF MODE)
50
100
A
SVR
Supply Voltage Rejection
I
O
= 5 mA
V
I
= 4.5 1 V
f = 120 Hz
82
dB
f = 1 KHz
77
f = 10 KHz
60
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
V
V
d
Dropout Voltage
I
O
= 200 mA
0.2
0.35
V
I
O
= 500 mA
0.4
0.7
V
IL
Control Input Logic Low
T
a
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
T
a
= -40 to 125C
2
V
I
I
Control Input Current
V
I
= 6 V,
V
C
= 6 V
10
A
C
O
Output Bypass Capacitance ESR = 0.1 to 10
I
O
= 0 to 500 mA
2
10
F
KF00
5/17
ELECTRICAL CHARACTERISTICS FOR KF27 (refer to the test circuits, T
j
= 25C, C
I
= 0.1 F,
C
O
= 2.2
F unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR KF30 (refer to the test circuits, T
j
= 25C, C
I
= 0.1 F,
C
O
= 2.2
F unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 50 mA, V
I
= 4.7 V
2.646
2.7
2.754
V
I
O
= 50 mA, V
I
= 4.7 V, T
a
= -25 to 85C
2.592
2.808
V
I
Operating Input Voltage
I
O
= 500 mA
20
V
I
O
Output Current Limit
1
A
V
O
Line Regulation
V
I
= 3.7 to 20 V,
I
O
= 5 mA
2
12
mV
V
O
Load Regulation
V
I
= 4 V,
I
O
= 5 to 500 mA
2
50
mV
I
d
Quiescent Current
V
I
= 3.7 to 20V, I
O
= 0mA
(ON MODE)
0.5
1
mA
V
I
= 4 to 20V,
I
O
= 500mA
12
V
I
= 6 V
(OFF MODE)
50
100
A
SVR
Supply Voltage Rejection
I
O
= 5 mA
V
I
= 4.7 1 V
f = 120 Hz
82
dB
f = 1 KHz
77
f = 10 KHz
60
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
V
V
d
Dropout Voltage
I
O
= 200 mA
0.2
0.35
V
I
O
= 500 mA
0.4
0.7
V
IL
Control Input Logic Low
T
a
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
T
a
= -40 to 125C
2
V
I
I
Control Input Current
V
I
= 6 V,
V
C
= 6 V
10
A
C
O
Output Bypass Capacitance ESR = 0.1 to 10
I
O
= 0 to 500 mA
2
10
F
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
I
O
= 50 mA, V
I
= 5 V
2.94
3
3.06
V
I
O
= 50 mA, V
I
= 5 V, T
a
= -25 to 85C
2.88
3.12
V
I
Operating Input Voltage
I
O
= 500 mA
20
V
I
O
Output Current Limit
1
A
V
O
Line Regulation
V
I
= 4 to 20 V,
I
O
= 5 mA
2
12
mV
V
O
Load Regulation
V
I
= 4.3 V,
I
O
= 5 to 500 mA
2
50
mV
I
d
Quiescent Current
V
I
= 4 to 20V, I
O
= 0mA
(ON MODE)
0.5
1
mA
V
I
= 4.3 to 20V, I
O
= 500mA
12
V
I
= 6 V
(OFF MODE)
50
100
A
SVR
Supply Voltage Rejection
I
O
= 5 mA
V
I
= 5 1 V
f = 120 Hz
81
dB
f = 1 KHz
76
f = 10 KHz
60
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
V
V
d
Dropout Voltage
I
O
= 200 mA
0.2
0.35
V
I
O
= 500 mA
0.4
0.7
V
IL
Control Input Logic Low
T
a
= -40 to 125C
0.8
V
V
IH
Control Input Logic High
T
a
= -40 to 125C
2
V
I
I
Control Input Current
V
I
= 6 V,
V
C
= 6 V
10
A
C
O
Output Bypass Capacitance ESR = 0.1 to 10
I
O
= 0 to 500 mA
2
10
F
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