ST KF00 User Manual
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VOLTAGE REGULATORS W ITH INHIBIT
■ VERY LOW DROPOUT V OLTAGE (0.4V)
■ VERY LOW QUIESCENT CURRENT (TYP.
50 µA IN OFF MODE,500 µA IN ON MODE)
■ OUTPUT CURRENT UP TO 5 00 mA
■ LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
■ 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
■ INTERNAL CURRENT AND THERMAL LIM IT
■ ONLY 2.2 µF FOR STABILITY
■ AVAILABLE IN ± 2% ACCURA CY AT 25 °C
■ SUPPLY VOLTAGE REJECTION: 70 db
(TYP.)
■ TEMPERATURE RANGE: -40 TO 12 5 °C
DESCRIPTION
The KF00 series are very Low Drop regulators
availablein SO-8 p ac kag e and in a wide ra nge of
output voltages.
The very Low D rop v oltage (0.4V) and the very
low quiescent current make them particularly
KF00
SERIES
VERY LOW DROP
SO-8 DPAK
suitable for Low Noise, Low Power applications
and specially in battery powered system s .
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, dec reas ing the
total power c ons umption. It requi res only a 2.2 µF
capacitor for stability allowing space and cost
saving.
SCHEMATIC DIAGRAM
1/17July 2003
KF00
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
I
P
T
T
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
Symbol Parameter DPAK SO-8 Unit
R
thj-case
CONNECTION DIAGRAM (top view)
DC Input Voltage
I
Output Current
O
Power Dissipation
tot
Storage Temperature Range
stg
Operating Junction Temperature Range
op
Thermal Resistance Junction-case
-0.5 to 20 V
Internally Limited
Internally Limited
-40 to 150 °C
-40 to 125 °C
8 20 °C/W
SO-8
ORDERING CODES
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
(*) Available on request.
(#) Available in Tape & Reel with the suffix "-TR".
DPAK
2/17
TEST CIRCUITS
KF00
ELECTRICAL CHARACTERISTICS FOR KF12 (refer to the test circuits, T
C
=2.2µF unless otherwise specified.)
O
= 25°C, CI=0.1µF,
j
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage IO= 50 mA, VI= 3.3 V 1.225 1.25 1.275 V
O
= 50 mA, VI =3.3V,Ta= -25 to 85°C 1.2 1.3
I
O
Operating Input Voltage IO= 500 mA 2.5 20 V
V
I
Output Current Limit 1 A
I
O
Line Regulation VI = 2.5 to 20 V, IO= 5 mA 2 12 mV
∆V
O
Load Regulation VI = 2.8 V, IO= 5 to 500 mA 2 50 mV
∆V
O
Quiescent Current VI = 2.5 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 2.6 to 20V, IO= 500mA 12
V
I
= 6 V (OFF MODE) 50 100 µA
V
I
SVR Supply Voltage Rejection I
=5mA
O
V
= 3.5 ± 1 V
I
f = 120 Hz 82 dB
f=1KHz 77
f = 10 KHz 60
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 1.25 V
d
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
Control Input Logic High Ta= -40 to 125°C 2 V
V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO=0to500mA 2 10 µF
C
O
3/17
KF00
ELECTRICAL CHARACTERISTICS FOR KF15 (refer to the test circuits, Tj= 25°C, CI=0.1µF,
C
=2.2µF unless otherwise specified.)
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage IO= 50 mA, VI= 3.5 V 1.47 1.5 1.53 V
O
= 50 mA, VI =3.5V,Ta= -25 to 85°C 1.44 1.56
I
O
Operating Input Voltage IO= 500 mA 2.5 20 V
V
I
Output Current Limit 1 A
I
O
Line Regulation VI = 2.5 to 20 V, IO= 5 mA 2 12 mV
∆V
O
∆V
Load Regulation VI = 2.8 V, IO= 5 to 500 mA 2 50 mV
O
Quiescent Current VI = 2.5 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 2.8 to 20V, IO= 500mA 12
V
I
= 6 V (OFF MODE) 50 100 µA
V
I
SVR Supply Voltage Rejection I
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 1 V
d
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
Control Input Logic High Ta= -40 to 125°C 2 V
V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO=0to500mA 2 10 µF
C
O
=5mA
O
V
= 3.5 ± 1 V
I
f = 120 Hz 82 dB
f=1KHz 77
f = 10 KHz 60
ELECTRICAL CHARACTERISTICS FOR KF25 (refer to the test circuits, T
=2.2µF unless otherwise specified.)
C
O
= 25°C, CI=0.1µF,
j
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage IO= 50 mA, VI= 4.5 V 2.45 2.5 2.55 V
V
O
= 50 mA, VI =4.5V,Ta= -25 to 85°C 2.4 2.6
I
O
Operating Input Voltage IO= 500 mA 20 V
V
I
Output Current Limit 1 A
I
O
Line Regulation VI = 3.5 to 20 V, IO= 5 mA 2 12 mV
∆V
O
Load Regulation VI = 3.8 V, IO= 5 to 500 mA 2 50 mV
∆V
O
Quiescent Current VI = 3.5 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 3.8 to 20V, IO= 500mA 12
V
I
= 6 V (OFF MODE) 50 100 µA
V
I
SVR Supply Voltage Rejection I
=5mA
O
V
= 4.5 ± 1 V
I
f = 120 Hz 82 dB
f=1KHz 77
f = 10 KHz 60
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 0.2 0.35 V
d
= 500 mA 0.4 0.7
I
O
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
Control Input Logic High Ta= -40 to 125°C 2 V
V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO=0to500mA 2 10 µF
C
O
4/17
ELECTRICAL CHARACTERISTICS FOR KF27 (refer to the test circuits, Tj= 25°C, CI=0.1µF,
C
=2.2µF unless otherwise s pec ified.)
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage IO= 50 mA, VI= 4.7 V 2.646 2.7 2.754 V
O
= 50 mA, VI = 4.7 V, Ta= -25 to 85°C 2.592 2.808
I
O
Operating Input Voltage IO= 500 mA 20 V
V
I
Output Current Limit 1 A
I
O
∆V
∆V
SVR Supply Voltage Rejection I
Line Regulation VI = 3.7 to 20 V, IO= 5 mA 2 12 mV
O
Load Regulation VI =4V, IO= 5 to 500 mA 2 50 mV
O
Quiescent Current VI = 3.7 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 4 to 20V, IO= 500mA 12
V
I
= 6 V (OFF MODE) 50 100 µA
V
I
=5mA
O
V
=4.7±1V
I
f = 120 Hz 82 dB
f = 1 KHz 77
f = 10 KHz 60
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 0.2 0.35 V
d
= 500 mA 0.4 0.7
I
O
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
Control Input Logic High Ta= -40 to 125°C 2 V
V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO= 0 to 500 mA 2 10 µF
C
O
KF00
ELECTRICAL CHARACTERISTICS FOR KF30 (refer to the test circuits, T
C
=2.2µF unless otherwise s pec ified.)
O
= 25°C, CI=0.1µF,
j
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage IO= 50 mA, VI= 5 V 2.94 3 3.06 V
V
O
= 50 mA, VI =5V,Ta= -25 to 85°C 2.88 3.12
I
O
Operating Input Voltage IO= 500 mA 20 V
V
I
Output Current Limit 1 A
I
O
∆V
∆V
SVR Supply Voltage Rejection I
Line Regulation VI = 4 to 20 V, IO= 5 mA 2 12 mV
O
Load Regulation VI = 4.3 V, IO= 5 to 500 mA 2 50 mV
O
Quiescent Current VI = 4 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 4.3 to 20V, IO= 500mA 12
V
I
V
= 6 V (OFF MODE) 50 100 µA
I
=5mA
O
V
=5±1V
I
f = 120 Hz 81 dB
f = 1 KHz 76
f = 10 KHz 60
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 0.2 0.35 V
d
= 500 mA 0.4 0.7
I
O
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
Control Input Logic High Ta= -40 to 125°C 2 V
V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO= 0 to 500 mA 2 10 µF
C
O
5/17
KF00
ELECTRICAL CHARACTERISTICS FOR KF33 (refer to the test circuits, Tj= 25°C, CI=0.1µF,
C
=2.2µF unless otherwise specified.)
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage IO= 50 mA, VI= 5.3 V 3.234 3.3 3.366 V
O
= 50 mA, VI =5.3V,Ta= -25 to 85°C 3.168 3.432
I
O
Operating Input Voltage IO= 500 mA 20 V
V
I
Output Current Limit 1 A
I
O
Line Regulation VI = 4.3 to 20 V, IO= 5 mA 2 12 mV
∆V
O
Load Regulation VI = 4.6 V, IO= 5 to 500 mA 2 50 mV
∆V
O
Quiescent Current VI = 4.3 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 4.6 to 20V, IO= 500mA 12
V
I
= 6 V (OFF MODE) 50 100 µA
V
I
SVR Supply Voltage Rejection I
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 0.2 0.35 V
d
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
Control Input Logic High Ta= -40 to 125°C 2 V
V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO=0to500mA 2 10 µF
C
O
=5mA
O
V
= 5.3 ± 1 V
I
f = 120 Hz 80 dB
f=1KHz 75
f = 10 KHz 60
= 500 mA 0.4 0.7
I
O
ELECTRICAL CHARACTERISTICS FOR KF35 (refer to the test circuits, T
C
=2.2µF unless otherwise specified.)
O
= 25°C, CI=0.1µF,
j
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage IO= 50 mA, VI= 5.5 V 3.43 3.5 3.57 V
V
O
= 50 mA, VI =5.5V,Ta= -25 to 85°C 3.36 3.64
I
O
Operating Input Voltage IO= 500 mA 20 V
V
I
Output Current Limit 1 A
I
O
Line Regulation VI = 4.5 to 20 V, IO= 5 mA 2 12 mV
∆V
O
Load Regulation VI = 4.8 V, IO= 5 to 500 mA 2 50 mV
∆V
O
Quiescent Current VI = 4.5 to 20V, IO= 0mA (ON MODE) 0.5 1 mA
I
d
= 4.8 to 20V, IO= 500mA 12
V
I
= 6 V (OFF MODE) 50 100 µA
V
I
SVR Supply Voltage Rejection I
=5mA
O
V
= 5.5 ± 1 V
I
f = 120 Hz 79 dB
f=1KHz 74
f = 10 KHz 60
eN Output Noise Voltage B = 10 Hz to 100 KHz 50 µV
V
Dropout Voltage IO= 200 mA 0.2 0.35 V
d
= 500 mA 0.4 0.7
I
O
Control Input Logic Low Ta= -40 to 125°C 0.8 V
V
IL
V
Control Input Logic High Ta= -40 to 125°C 2 V
IH
Control Input Current VI =6V, VC =6V 10 µA
I
I
Output Bypass Capacitance ESR = 0.1 to 10 Ω IO=0to500mA 2 10 µF
C
O
6/17
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