LF35ABV Datasheet PDF - STMicroelectronics
| Part Number | LF35ABV | |
| Description | Very Low Drop Voltage Regulator | |
| Manufacturers | STMicroelectronics | |
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There is a preview and LF35ABV download ( pdf file ) link at the bottom of this page. Total 34 Pages | ||
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LF00
SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
s VERY LOW DROPOUT VOLTAGE (0.45V)
s VERY LOW QUIESCENT CURRENT (TYP.
50 µA IN OFF MODE, 500 µA IN ON MODE)
s OUTPUT CURRENT UP TO 500 mA
s LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s OUTPUT VOLTAGES OF 1.25; 1.5; 1.8; 2.5;
2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8;
8.5; 9; 12V
s INTERNAL CURRENT AND THERMAL LIMIT
s ONLY 2.2 µF FOR STABILITY
s AVAILABLE IN ± 1% (AB) OR ± 2% (C)
SELECTION AT 25 °C
s SUPPLY VOLTAGE REJECTION: 80db (TYP.)
s TEMPERATURE RANGE: -40 TO 125 °C
DESCRIPTION
The LF00 series are very Low Drop regulators
available in PENTAWATT, TO-220, TO-220FP,
DPAK and PPAK package and in a wide range of
output voltages.
The very Low Drop voltage (0.45V) and the very
low quiescent current make them particularly
suitable for Low Noise, Low Power applications
and specially in battery powered systems.
In the 5 pins configuration (PENTAWATT and
PPAK) a Shutdown Logic Control function is
available (pin 2, TTL compatible). This means that
SCHEMATIC DIAGRAM
PENTAWATT
TO-220
TO-220FP
PPAK
DPAK
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. In the
three terminal configuration the device has the
same electrical performance, but is fixed in the ON
state. It requires only a 2.2 µF capacitor for
stability allowing space and cost saving.
August 2003
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LF00 SERIES
ELECTRICAL CHARACTERISTICS FOR LF12C (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
VI
IO
∆VO
∆VO
Id
SVR
eN
Vd
VIL
VIH
II
CO
Output Voltage
Operating Input Voltage
Output Current Limit
IO = 50 mA, VI = 3.3 V
IO = 50 mA, VI = 3.3 V, Ta = -25 to 85°C
IO = 500 mA
Line Regulation
VI = 2.5 to 16 V, IO = 5 mA
Load Regulation
VI = 2.8 V
IO = 5 to 500 mA
Quiescent Current
VI = 2.5 to 16V, IO = 0mA ON MODE
VI = 2.6 to 16V, IO = 500mA
VI = 6 V
OFF MODE
Supply Voltage Rejection
IO = 5 mA
VI = 3.5 ± 1 V
f = 120 Hz
f = 1 KHz
f = 10 KHz
Output Noise Voltage
B = 10 Hz to 100 KHz
Dropout Voltage
IO = 200 mA
Control Input Logic Low
Ta = -40 to 125°C
Control Input Logic High Ta = -40 to 125°C
Control Input Current
VI = 6 V,
VC = 6 V
Output Bypass Capacitance ESR = 0.1 to 10 Ω
IO = 0 to 500 mA
1.225
1.2
2.5
2
2
1.25
1
2
2
0.5
50
82
77
65
50
1.25
10
10
1.275
1.3
16
10
10
1
12
100
0.8
V
V
A
mV
mV
mA
µA
dB
µV
V
V
V
µA
µF
ELECTRICAL CHARACTERISTICS FOR LF15AB (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 = 3.5 V
1.485 1.5 1.515 V
IO = 50 mA, VI = 3.5 V, Ta = -25 to 85°C 1.470
1.530
VI Operating Input Voltage
IO = 500 mA
2.5 16 V
IO Output Current Limit
1A
∆VO Line Regulation
VI = 2.5 to 16 V, IO = 5 mA
2 10 mV
∆VO Load Regulation
VI = 2.8 V,
IO = 5 to 500 mA
2 10 mV
Id Quiescent Current
VI = 2.5 to 16V, IO = 0mA ON MODE
0.5 1 mA
VI = 2.8 to 16V, 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
65
eN Output Noise Voltage
B = 10 Hz to 100 KHz
50 µV
Vd Dropout Voltage
IO = 200 mA
1V
VIL Control Input Logic Low
Ta = -40 to 125°C
0.8 V
VIH Control Input Logic High Ta = -40 to 125°C
2V
II Control Input Current
VI = 6 V,
VC = 6 V
10 µA
CO Output Bypass Capacitance ESR = 0.1 to 10 Ω
IO = 0 to 500 mA
2
10
µF
5/34
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| Information | Total 34 Pages | |
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