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LE25ABZ Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer LE25ABZ
Beschreibung VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 25 Seiten
LE25ABZ Datasheet, Funktion
LE00AB/C
® SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
s VERY LOW DROPOUT VOLTAGE (0.2V TYP.)
s VERY LOW QUIESCENT CURRENT
(TYP. 50µA IN OFF MODE, 0.5mA IN ON
MODE, NO LOAD)
s OUTPUT CURRENT UP TO 100 mA
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; 8V
s INTERNAL CURRENT AND THERMAL LIMIT
s ONLY 2.2µF FOR STABILITY
s AVAILABLE IN ± 1% (A) OR ± 2% (C)
SELECTION AT 25 oC
s SUPPLY VOLTAGE REJECTION: 80 db (TYP.)
s TEMPERATURE RANGE: -40 TO 125 oC
DESCRIPTION
The LE00 regulator series are very Low Drop
regulators available in SO-8 and TO-92 packages
and in a wide range of output voltages.
The very Low Drop voltage (0.2V) and the very
low quiescent current make them particularly
suitable for Low Noise Low Power applications
and specially in battery powered systems.
They are pin to pin compatible with the older
L78L00 series. Furthermore in the 8 pin
configuration (SO-8) they employ a Shutdown
Logic Control (pin 5, TTL compatible). This
means that when the device is used as a local
SO-8
TO-92
regulator, it’s possible to put in stand by a part of
the board even more decreasing the total power
consumption. In the three terminal configuration
(TO-92) the device is even in ON STATE,
mantaining the same electrical performances. It
needs only 2.2µF capacitor for stability allowing
room and cost saving effect.
SCHEMATIC DIAGRAM
September 1998
1/25






LE25ABZ Datasheet, Funktion
LE00AB/C
ELECTRICAL CHARACTERISTICS FOR LE25AB (refer to the test circuits, Tj = 25 oC,
Ci = 0.1 µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Io = 10 mA, Vi = 4.5 V
Io = 10 mA, Vi = 4.5 V -25<Ta<85 oC
2.475
2.45
2.5 2.525
2.55
Vi Operating Input Voltage
Io = 100 mA
18
Iout Output Current Limit
150
Vo Line Regulation
Vi = 3.2 to 18 V, Io = 0.5 mA
3 15
Vo Load Regulation
Vi = 3.5 V
Io = 0.5 to 100 mA
3 15
Id Quiescent Current
ON MODE
Vi = 3.5 to 18 V Io = 0 mA
Vi = 3.5 to 18 V Io = 100 mA
0.5 1
1.5 3
OFF MODE Vi = 6 V
50 100
SVR Supply Voltage Rejection
Io = 5 mA Vi = 4.5 V ± 1V
f = 120 Hz
f = 1 KHz
f = 10 KHz
82
77
60
eN Output Noise Voltage
B = 10 Hz to 100 KHz
50
Vd Dropout Voltage
Vil Control Input Logic Low
Vih Control Input Logic High
Io = 100 mA
Io = 100 mA -40 < Ta < 125 oC
-40 < Ta < 125 oC
-40 < Ta < 125 oC
0.2 0.4
0.5
0.8
2
Ii Control Input Current
Vi = 6 V, Vc = 6 V
10
CO Output Bypass Capacitance ESR = 0.1 to 10 Io = 0 to 100 mA 2 10
Unit
V
V
V
mA
mV
mV
mA
mA
µA
dB
dB
dB
µV
V
V
V
V
µA
µF
ELECTRICAL CHARACTERISTICS FOR LE25C (refer to the test circuits, Tj = 25 oC,
Ci = 0.1 µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ.
Vo Output Voltage
Io = 10 mA, Vi = 3.3 V
Io = 10 mA, Vi = 3.3 V -25<Ta<85 oC
2.45
2.4
2.5
Vi Operating Input Voltage
Io = 100 mA
Iout Output Current Limit
150
Vo Line Regulation
Vi = 3.2 to 18 V, Io = 0.5 mA
3
Vo Load Regulation
Vi = 3.5 V
Io = 0.5 to 100 mA
3
Id Quiescent Current
ON MODE
Vi = 3.5 to 18 V Io = 0 mA
Vi = 3.5 to 18 V Io = 100 mA
0.5
1.5
OFF MODE Vi = 6 V
50
SVR Supply Voltage Rejection
Io = 5 mA Vi = 4.5 V ± 1V
f = 120 Hz
f = 1 KHz
f = 10 KHz
82
77
60
eN Output Noise Voltage
B = 10 Hz to 100 KHz
50
Vd Dropout Voltage
Vil Control Input Logic Low
Vih Control Input Logic High
Io = 100 mA
Io = 100 mA -40 < Ta < 125 oC
-40 < Ta < 125 oC
-40 < Ta < 125 oC
0.2
2
Ii Control Input Current
Vi = 6 V, Vc = 6 V
10
CO Output Bypass Capacitance ESR = 0.1 to 10 Io = 0 to 100 mA 2 10
Max.
2.55
2.6
18
20
25
1
3
100
0.4
0.5
0.8
Unit
V
V
V
mA
mV
mV
mA
mA
µA
dB
dB
dB
µV
V
V
V
V
µA
µF
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6 Page









LE25ABZ pdf, datenblatt
LE00AB/C
ELECTRICAL CHARACTERISTICS FOR LE45AB (refer to the test circuits, Tj = 25 oC,
Ci = 0.1 µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Io = 10 mA, Vi = 6.5 V
Io = 10 mA, Vi = 6.5 V -25<Ta<85 oC
4.445
4.41
4.5 4.545
4.59
Vi Operating Input Voltage
Io = 100 mA
18
Iout Output Current Limit
150
Vo Line Regulation
Vi = 5.2 to 18 V, Io = 0.5 mA
4 20
Vo Load Regulation
Vi = 5.5 V
Io = 0.5 to 100 mA
3 15
Id Quiescent Current
ON MODE
Vi = 5.5 to 18 V Io = 0 mA
Vi = 5.5 to 18 V Io = 100 mA
0.5 1
1.5 3
OFF MODE Vi = 6 V
50 100
SVR Supply Voltage Rejection
Io = 5 mA Vi = 6.5 V ± 1V
f = 120 Hz
f = 1 KHz
f = 10 KHz
77
72
60
eN Output Noise Voltage
B = 10 Hz to 100 KHz
50
Vd Dropout Voltage
Vil Control Input Logic Low
Vih Control Input Logic High
Io = 100 mA
Io = 100 mA -40 < Ta < 125 oC
-40 < Ta < 125 oC
-40 < Ta < 125 oC
0.2 0.4
0.5
0.8
2
Ii Control Input Current
Vi = 6 V, Vc = 6 V
10
CO Output Bypass Capacitance ESR = 0.1 to 10 Io = 0 to 100 mA 2 10
Unit
V
V
V
mA
mV
mV
mA
mA
µA
dB
dB
dB
µV
V
V
V
V
µA
µF
ELECTRICAL CHARACTERISTICS FOR LE45C (refer to the test circuits, Tj = 25 oC,
Ci = 0.1 µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ.
Vo Output Voltage
Io = 10 mA, Vi = 6.5 V
Io = 10 mA, Vi = 6.5 V -25<Ta<85 oC
4.41
4.32
4.5
Vi Operating Input Voltage
Io = 100 mA
Iout Output Current Limit
150
Vo Line Regulation
Vi = 5.2 to 18 V, Io = 0.5 mA
4
Vo Load Regulation
Vi = 5.5 V
Io = 0.5 to 100 mA
3
Id Quiescent Current
ON MODE
Vi = 5.5 to 18 V Io = 0 mA
Vi = 5.5 to 18 V Io = 100 mA
0.5
1.5
OFF MODE Vi = 6 V
50
SVR Supply Voltage Rejection
Io = 5 mA Vi = 6.5 V ± 1V
f = 120 Hz
f = 1 KHz
f = 10 KHz
77
72
60
eN Output Noise Voltage
B = 10 Hz to 100 KHz
50
Vd Dropout Voltage
Vil Control Input Logic Low
Vih Control Input Logic High
Io = 100 mA
Io = 100 mA -40 < Ta < 125 oC
-40 < Ta < 125 oC
-40 < Ta < 125 oC
0.2
2
Ii Control Input Current
Vi = 6 V, Vc = 6 V
10
CO Output Bypass Capacitance ESR = 0.1 to 10 Io = 0 to 100 mA 2 10
Max.
4.59
4.68
18
30
25
1
3
100
0.4
0.5
0.8
Unit
V
V
V
mA
mV
mV
mA
mA
µA
dB
dB
dB
µV
V
V
V
V
µA
µF
12/25

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