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January 2004s VERY LOW DROPOUT VOLTAGE (0.4V)s
VERY LOW QUIESCENT CURRENT (TYP .50µA IN OFF MODE,500µA IN ON MODE)s OUTPUT CURRENT UP TO 500mA 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 2.2µF FOR STABILITY
s AVAILABLE IN ±2%ACCURACY AT 25°C s
SUPPLY VOLTAGE REJECTION:70db (TYP .)
s
TEMPERATURE RANGE:-40TO 125°C
DESCRIPTION
The KF00series are very Low Drop regulators availablein SO-8package 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 2.2µF capacitor for stability allowing space and cost saving.
KF00SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH
INHIBIT
KF00
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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 -0.5to 20V
I O Output Current Internally Limited P tot Power Dissipation
Internally Limited
T stg Storage Temperature Range
-40to 150°C T op
Operating Junction Temperature Range
-40to 125
°C Symbol Parameter
DPAK SO-8Unit R thj-case
Thermal Resistance Junction-case
8
20
°C/W
TYPE SO-8(#)DPAK(#)OUTPUT VOLTAGE
KF12(*)KF12BD KF12BDT 1.25V KF15KF15BD KF15BDT 1.5V KF25KF25BD KF25BDT 2.5V KF27KF27BD KF27BDT 2.7V KF30KF30BD KF30BDT 3V KF33KF33BD KF33BDT 3.3V KF35KF35BD KF35BDT 3.5V KF40KF40BD KF40BDT 4V KF45(*)KF45BD KF45BDT 4.5V KF47KF47BD KF47BDT 4.75V KF50KF50BD KF50BDT 5V KF52KF52BD KF52BDT 5.2V KF55(*)KF55BD KF55BDT 5.5V KF60KF60BD KF60BDT 6V KF80KF80BD KF80BDT 8V KF85KF85BD KF85BDT 8.5V KF120
KF120BD
KF120BDT
12
V
KF00
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TEST CIRCUITS
ELECTRICAL CHARACTERISTICS FOR KF12(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
Symbol Parameter
Test Conditions
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =3.3
V
1.225 1.25
1.275V
I O =50mA,V I =3.3V,T a =-25to 85°C 1.2 1.3V I Operating Input Voltage I O =500mA
2.5
20
V I O Output Current Limit 1A ∆V O Line Regulation V I =2.5to 20V,I O =5mA 212mV ∆V O Load Regulation V I =2.8V,
I O =5to 500mA
250mV I d
Quiescent Current
V I =2.5to 20V,I O =0mA (ON MODE)0.51mA V I =2.6to 20V,I O =500mA 12V I =6V
(OFF MODE)50100
µA SVR Supply Voltage Rejection
I O =5mA V I =3.5±1V f =120Hz 82dB
f =1KHz 77f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d Dropout Voltage I O =200mA 1.25
V V IL Control Input Logic Low T a =-40to 125°C 0.8
V V IH Control Input Logic High T a =-40to 125°C 2
V I I Control Input Current
V I =6V,
V C =6V
10
µA C O
Output Bypass Capacitance ESR =0.1to 10Ω
I O =0to 500mA
2
10
µF
KF00
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ELECTRICAL CHARACTERISTICS FOR KF15(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR KF25(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
Symbol Parameter
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =3.5V
1.47 1.5
1.53V
I O =50mA,V I =3.5V,T a =-25to 85°C 1.44 1.56V I Operating Input Voltage I O =500mA
2.5
20电子放大镜
V I O Output Current Limit 1A ∆V O Line Regulation V I =2.5to 20V,I O =5mA 212mV ∆V O Load Regulation V I =2.8V,
I O =5to 500mA
250mV I d
Quiescent Current
V I =2.5to 20V,I O =0mA (ON MODE)0.51mA V I =2.8to 20V,I O =500mA 12V I =6V
(OFF MODE)50100
µA SVR Supply Voltage Rejection
I O =5mA V I =3.5±1V f =120Hz 82dB
f =1KHz 77f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d Dropout Voltage I O =200mA 1
V V IL Control Input Logic Low T a =-40to 125°C 0.8
网络
隔离V V IH Control Input Logic High T a =-40to 125°C 2V I I Control Input Current
V I =6V,
V C =6V
10
µA C O
Output Bypass Capacitance ESR =0.1to 10Ω
互动教学系统I O =0to 500mA
2
10
µF
Symbol Parameter
Test Conditions
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =4.5V
2.45 2.5
2.55V
I O =50mA,V I =4.5V,T a =-25to 85°C 2.4
2.6V I Operating Input Voltage I O =500mA
20
V I O Output Current Limit 1A ∆V O Line Regulation V I =3.5to 20V,I O =5mA 212mV ∆V O Load Regulation V I =3.8V,
I O =5to 500mA
250mV I d
Quiescent Current
V I =3.5to 20V,I O =0mA (ON MODE)0.51mA V I =3.8to 20V,I O =500mA 12V I =6V
(OFF MODE)50100
µA SVR Supply Voltage Rejection
I O =5mA V I =4.5±1V f =120Hz 82dB
f =1KHz 77f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d Dropout Voltage I O =200mA 0.20.35V I O =500mA 0.4
0.7V IL Control Input Logic Low T a =-40to 125°C 0.8
V V IH Control Input Logic High T a =-40to 125°C 2
V I I Control Input Current
V I =6V,
V C =6V
10
µA C O
Output Bypass Capacitance ESR =0.1to 10Ω
I O =0to 500mA
2
10
µF
KF00
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ELECTRICAL CHARACTERISTICS FOR KF27(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR KF30(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
Symbol Parameter
Test Conditions
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =4.7V
2.646 2.7
2.754V
I O =50mA,V I =4.7V,T a =-25to 85°C 2.592
2.808V I Operating Input Voltage I O =500mA
视野图
20
V I O Output Current Limit 1A ∆V O Line Regulation V I =3.7to 20V,I O =5mA 212mV ∆V O Load Regulation V I =4V,I O =5to 500mA
250mV I d
Quiescent Current
V I =3.7to 20V,I O =0mA
(ON MODE)0.5
1mA V I =4to 20V,I O =500mA
12V I =6V
(OFF MODE)50100
µA SVR
Supply Voltage Rejection
I O =5mA V I =4.7±1V f =120Hz 82dB
f =1KHz 77f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d
Dropout Voltage
I O =200mA 0.20.35V I O =500mA
0.4
0.7V IL Control Input Logic Low T a =-40to 125°C 0.8
V V IH Control Input Logic High T a =-40to 125°C 2
V I I Control Input Current
V I =6V,
V C =6V
10µA C O
Output Bypass Capacitance ESR =0.1to 10Ω
I O =0to 500mA
210
µF
Symbol Parameter
Test Conditions
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =5V
2.943
3.06V
I O =50mA,V I =5V,T a =-25to 85°C 2.88
3.12V I Operating Input Voltage I O =500mA
20
V I O Output Current Limit 1A ∆V O Line Regulation V I =4to 20V,I O =5mA 212mV ∆V O Load Regulation V I =4.3V,
I O =5to 500mA
250mV I d
Quiescent Current
V I =4to 20V,I O =0mA (ON MODE)0.51mA V I =4.3to 20V,I O =500mA 12V I =6V
(OFF MODE)50100
µA SVR Supply Voltage Rejection
I O =5mA V I =5±1V
f =120Hz 81dB
f =1KHz 76f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d Dropout Voltage I O =200mA 0.20.35V I O =500mA 0.4
0.7V IL Control Input Logic Low T a =-40to 125°C 0.8
V V IH Control Input Logic High T a =-40to 125°C 2
V I I Control Input Current
V I =6V,
V C =6V
10
µA C O
Output Bypass Capacitance ESR =0.1to 10Ω
I O =0to 500mA
2
10
µF
KF00
ELECTRICAL CHARACTERISTICS FOR KF33(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR KF35(refer to the test circuits,T j =25°C,C I =0.1µF,C O =2.2µF unless otherwise specified.)
Symbol Parameter
Test Conditions
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =5.3V
3.234 3.3
3.366V
I O =50mA,V I =5.3V,T a =-25to 85°C 3.168
3.432V I Operating Input Voltage I O =500mA
20
V I O Output Current Limit 1A ∆V O Line Regulation V I =4.3to 20V,I O =5mA 212mV ∆V O Load Regulation V I =4.6V,
I O =5to 500mA
250mV I d
Quiescent Current
V I =4.3to 20V,I O =0mA (ON MODE)0.51mA V I =4.6to 20V,I O =500mA 12V I =6V
(OFF MODE)50100
µA SVR Supply Voltage Rejection
I O =5mA V I =5.3±1V f =120Hz 80dB
f =1KHz 75f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d Dropout Voltage I O =200mA 0.20.35V I O =500mA 0.4
0.7V IL Control Input Logic Low T a =-40to 125°C 0.8
V V IH Control Input Logic High T a =-40to 125°C 2
V I I Control Input Current
V I =6V,
V C =6V
10
µA C O
Output Bypass Capacitance ESR =0.1to 10Ω
I O =0to 500mA
2
10
µF
Symbol Parameter
Test Conditions
Min.Typ.Max.Unit V O Output Voltage I O =50mA,V I =5.5V
3.43 3.5
3.57V
I O =50mA,V I =5.5V,T a =-25to 85°C 3.36
3.64V I Operating Input Voltage I O =500mA
20
V I O Output Current Limit 1A ∆V O Line Regulation V I =4.5to 20V,I O =5mA 212mV ∆V O Load Regulation V I =4.8V,
I O =5to 500mA
250mV I d
Quiescent Current
V I =4.5to 20V,I O =0mA (ON MODE)0.51mA V I =4.8to 20V,I O =500mA 12V I =6V
(OFF MODE)50100
µA SVR Supply Voltage Rejection
I O =5mA V I =5.5±1V f =120Hz 79dB
f =1KHz 74f =10KHz
60eN Output Noise Voltage B =10Hz to 100KHz 50µV V d Dropout Voltage I O =200mA 0.20.35V I O =500mA 0.4
0.7V IL Control Input Logic Low T a =-40to 125°C 0.8
V V IH Control Input Logic High T a =-40to 125°C 2
V I I Control Input Current
V I =6V,
V C =6V
10
µA C O Output Bypass Capacitance ESR =0.1to 10Ω
I O =0to 500mA
2
10
µF
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