LT1579-3.3 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LT1579-3.3 Datasheet PDF : 20 Pages
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ELECTRICAL CHARACTERISTICS
PARAMETER
Regulated Output
Voltage (Note 1)
Adjust Pin Voltage
Line Regulation
Load Regulation
Dropout Voltage
(Notes 3, 4)
VIN1 = VIN2 =
VOUT(NOMINAL)
Ground Pin Current
(Note 5)
VIN1 = VIN2 =
VOUT(NOMINAL) + 1V
Standby Current
(Note 6) ILOAD = 0mA
Shutdown Threshold
Shutdown Pin Current
(Note 7)
Quiescent Current in
Shutdown (Note 9)
CONDITIONS
LT1579-3 VIN1 = VIN2 = 3.5V, ILOAD = 1mA, TJ = 25°C
4V < VIN1 < 20V, 4V < VIN2 < 20V, 1mA < ILOAD < 300mA
LT1579-3.3 VIN1 = VIN2 = 3.8V, ILOAD = 1mA, TJ = 25°C
4.3V < VIN1 < 20V, 4.3V < VIN2 < 20V, 1mA < ILOAD < 300mA
LT1579-5 VIN1 = VIN2 = 5.5V, ILOAD = 1mA, TJ = 25°C
6V < VIN1 < 20V, 6V < VIN2 < 20V, 1mA < ILOAD < 300mA
LT1579
VIN1 = VIN2 = 3.2V, ILOAD = 1mA, TJ = 25°C (Note 2)
3.7V < VIN1 < 20V, 3.7V < VIN2 < 20V, 1mA < ILOAD < 300mA
LT1579-3 ∆VIN1 = 3.5V to 20V, ∆VIN2 = 3.5V to 20V, ILOAD = 1mA
LT1579-3.3 ∆VIN1 = 3.8V to 20V, ∆VIN2 = 3.8V to 20V, ILOAD = 1mA
LT1579-5 ∆VIN1 = 5.5V to 20V, ∆VIN2 = 5.5V to 20V, ILOAD = 1mA
LT1579 ∆VIN1 = 3.2V to 20V, ∆VIN2 = 3.2V to 20V, ILOAD = 1mA (Note 2)
LT1579-3 VIN1 = VIN2 = 4V, ∆ILOAD = 1mA to 300mA, TJ = 25°C
VIN1 = VIN2 = 4V, ∆ILOAD = 1mA to 300mA
LT1579-3.3 VIN1 = VIN2 = 4.3V, ∆ILOAD = 1mA to 300mA, TJ = 25°C
VIN1 = VIN2 = 4.3V, ∆ILOAD = 1mA to 300mA
LT1579-5 VIN1 = VIN2 = 6V, ∆ILOAD = 1mA to 300mA, TJ = 25°C
VIN1 = VIN2 = 6V, ∆ILOAD = 1mA to 300mA
LT1579
VIN1 = VIN2 = 3.7V, ∆ILOAD = 1mA to 300mA, TJ = 25°C (Note 2)
VIN1 = VIN2 = 3.7V, ∆ILOAD = 1mA to 300mA
ILOAD = 10mA, TJ = 25°C
ILOAD = 10mA
ILOAD = 50mA, TJ = 25°C
ILOAD = 50mA
ILOAD = 150mA, TJ = 25°C
ILOAD = 150mA
ILOAD = 300mA, TJ = 25°C
ILOAD = 300mA
ILOAD = 0mA, TJ = 25°C
ILOAD = 0mA
ILOAD = 1mA, TJ = 25°C
ILOAD = 1mA
ILOAD = 50mA
ILOAD = 150mA
ILOAD = 300mA
IVIN2: VIN1 = 20V, VIN2 = VOUT(NOMINAL) + 0.5V, VSS = Open (HI)
IVIN1: VIN1 = VOUT(NOMINAL) + 0.5V, VIN2 = 20V, VSS = 0V
VOUT = Off to On
VOUT = On to Off
VSHDN = 0V
IVIN1: VIN1 = 20V, VIN2 = 6V, VSHDN = 0V
IVIN2: VIN1 = 6V, VIN2 = 20V, VSHDN = 0V
ISRC: VIN1 = VIN2 = 20V, VSHDN = 0V
LT1579
MIN TYP MAX UNITS
2.950 3.000 3.050
V
q 2.900 3.000 3.100
V
3.250 3.300 3.350
V
q 3.200 3.300 3.400
V
4.925 5.000 5.075
V
q 4.850 5.000 5.150
V
1.475 1.500 1.525
V
q 1.450 1.500 1.550
V
q
1.5
10
mV
q
1.5
10
mV
q
1.5
10
mV
q
1.5
10
mV
3
12
mV
q
25
mV
3
12
mV
q
25
mV
5
15
mV
q
35
mV
2
10
mV
q
20
mV
0.10 0.28
V
q
0.39
V
0.18 0.35
V
q
0.45
V
0.25 0.47
V
q
0.60
V
0.34 0.60
V
q
0.75
V
50 100
µA
q
400
µA
100 200
µA
q
500
µA
q
0.7 1.5
mA
q
2
4
mA
q
5.8
12
mA
q
3.3 7.0
µA
q
2.0 7.0
µA
q
0.9 2.8
V
q 0.25 0.75
V
q
1.3
5
µA
q
5
12
µA
q
5
12
µA
3
µA
3
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