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KF12BDT-TR Просмотр технического описания (PDF) - STMicroelectronics

Номер в каталогеKF12BDT-TR ST-Microelectronics
STMicroelectronics ST-Microelectronics
Компоненты ОписаниеVERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
KF12BDT-TR Datasheet PDF : 17 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TEST CIRCUITS
KF00
ELECTRICAL CHARACTERISTICS FOR KF12 (refer to the test circuits, Tj = 25°C, CI = 0.1 µF,
CO = 2.2 µF unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VO Output Voltage
IO = 50 mA, VI = 3.3 V
1.225 1.25 1.275 V
IO = 50 mA, VI = 3.3 V, Ta = -25 to 85°C
1.2
1.3
VI Operating Input Voltage
IO = 500 mA
2.5
20
V
IO Output Current Limit
1
A
VO Line Regulation
VI = 2.5 to 20 V, IO = 5 mA
2
12
mV
VO Load Regulation
VI = 2.8 V,
IO = 5 to 500 mA
2
50
mV
Id Quiescent Current
VI = 2.5 to 20V, IO = 0mA (ON MODE)
0.5
1
mA
VI = 2.6 to 20V, IO = 500mA
12
VI = 6 V
(OFF MODE)
50 100 µA
SVR Supply Voltage Rejection
IO = 5 mA
VI = 3.5 ± 1 V
f = 120 Hz
f = 1 KHz
82
dB
77
f = 10 KHz
60
eN Output Noise Voltage
B = 10 Hz to 100 KHz
50
µV
Vd Dropout Voltage
IO = 200 mA
1.25
V
VIL Control Input Logic Low
Ta = -40 to 125°C
0.8
V
VIH Control Input Logic High Ta = -40 to 125°C
2
V
II Control Input Current
VI = 6 V,
VC = 6 V
10
µA
CO Output Bypass Capacitance ESR = 0.1 to 10
IO = 0 to 500 mA
2
10
µF
3/17
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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 µF capacitor for stability allowing space and cost saving.

■ VERY LOW DROPOUT VOLTAGE (0.4V)
■ VERY LOW QUIESCENT CURRENT (TYP. 50 µA IN OFF MODE, 500 µA IN ON MODE)
■ OUTPUT CURRENT UP TO 500 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 LIMIT
■ ONLY 2.2 µF FOR STABILITY
■ AVAILABLE IN ± 2% ACCURACY AT 25 °C
■ SUPPLY VOLTAGE REJECTION: 70 db (TYP.)
■ TEMPERATURE RANGE: -40 TO 125 °C

 

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