參數(shù)資料
型號(hào): LT1579CS-3.3
廠商: LINEAR TECHNOLOGY CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 300mA Dual Input Smart Battery Backup Regulator
中文描述: 3.3 V FIXED POSITIVE LDO REGULATOR, 0.75 V DROPOUT, PDSO16
封裝: 0.150 INCH, PLASTIC, SO-16
文件頁(yè)數(shù): 3/20頁(yè)
文件大小: 352K
代理商: LT1579CS-3.3
3
LT1579
ELECTRICAL CHARACTERISTICS
PARAMETER
Regulated Output
Voltage (Note 1)
CONDITIONS
LT1579-3
MIN
2.950
2.900
3.250
3.200
4.925
4.850
1.475
1.450
TYP
3.000
3.000
3.300
3.300
5.000
5.000
1.500
1.500
1.5
1.5
1.5
1.5
3
MAX
3.050
3.100
3.350
3.400
5.075
5.150
1.525
1.550
10
10
10
10
12
25
12
25
15
35
10
20
0.28
0.39
0.35
0.45
0.47
0.60
0.60
0.75
100
400
200
500
1.5
4
12
7.0
7.0
2.8
UNITS
V
IN1
= V
IN2
= 3.5V, I
LOAD
= 1mA, T
J
= 25
°
C
4V < V
IN1
< 20V, 4V < V
IN2
< 20V, 1mA < I
LOAD
< 300mA
LT1579-3.3 V
IN1
= V
IN2
= 3.8V, I
LOAD
= 1mA, T
J
= 25
°
C
4.3V < V
IN1
< 20V, 4.3V < V
IN2
< 20V, 1mA < I
LOAD
< 300mA
LT1579-5
V
IN1
= V
IN2
= 5.5V, I
LOAD
= 1mA, T
J
= 25
°
C
6V < V
IN1
< 20V, 6V < V
IN2
< 20V, 1mA < I
LOAD
< 300mA
LT1579
V
IN1
= V
IN2
= 3.2V, I
LOAD
= 1mA, T
J
= 25
°
C (Note 2)
3.7V < V
IN1
< 20V, 3.7V < V
IN2
< 20V, 1mA < I
LOAD
< 300mA
LT1579-3
V
IN1
= 3.5V to 20V,
V
IN2
= 3.5V to 20V, I
LOAD
= 1mA
LT1579-3.3
V
IN1
= 3.8V to 20V,
V
IN2
= 3.8V to 20V, I
LOAD
= 1mA
LT1579-5
V
IN1
= 5.5V to 20V,
V
IN2
= 5.5V to 20V, I
LOAD
= 1mA
LT1579
V
IN1
= 3.2V to 20V,
V
IN2
= 3.2V to 20V, I
LOAD
= 1mA (Note 2)
LT1579-3
V
IN1
= V
IN2
= 4V,
I
LOAD
= 1mA to 300mA, T
J
= 25
°
C
V
IN1
= V
IN2
= 4V,
I
LOAD
= 1mA to 300mA
LT1579-3.3 V
IN1
= V
IN2
= 4.3V,
I
LOAD
= 1mA to 300mA, T
J
= 25
°
C
V
IN1
= V
IN2
= 4.3V,
I
LOAD
= 1mA to 300mA
LT1579-5
V
IN1
= V
IN2
= 6V,
I
LOAD
= 1mA to 300mA, T
J
= 25
°
C
V
IN1
= V
IN2
= 6V,
I
LOAD
= 1mA to 300mA
LT1579
V
IN1
= V
IN2
= 3.7V,
I
LOAD
= 1mA to 300mA, T
J
= 25
°
C (Note 2)
V
IN1
= V
IN2
= 3.7V,
I
LOAD
= 1mA to 300mA
I
LOAD
= 10mA, T
J
= 25
°
C
I
LOAD
= 10mA
I
LOAD
= 50mA, T
J
= 25
°
C
I
LOAD
= 50mA
I
LOAD
= 150mA, T
J
= 25
°
C
I
LOAD
= 150mA
I
LOAD
= 300mA, T
J
= 25
°
C
I
LOAD
= 300mA
I
LOAD
= 0mA, T
J
= 25
°
C
I
LOAD
= 0mA
I
LOAD
= 1mA, T
J
= 25
°
C
I
LOAD
= 1mA
I
LOAD
= 50mA
I
LOAD
= 150mA
I
LOAD
= 300mA
I
VIN2
: V
IN1
= 20V, V
IN2
= V
OUT(NOMINAL)
+ 0.5V, V
SS
= Open (HI)
I
VIN1
: V
IN1
= V
OUT(NOMINAL)
+ 0.5V, V
IN2
= 20V, V
SS
= 0V
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V
V
V
V
V
V
V
V
V
G
G
G
Adjust Pin Voltage
G
Line Regulation
G
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
G
G
G
Load Regulation
G
3
G
5
G
2
G
Dropout Voltage
(Notes 3, 4)
V
IN1
= V
IN2
=
V
OUT(NOMINAL)
0.10
V
V
V
V
V
V
V
V
G
0.18
G
0.25
G
0.34
G
Ground Pin Current
(Note 5)
V
IN1
= V
IN2
=
V
OUT(NOMINAL)
+ 1V
50
μ
A
μ
A
μ
A
μ
A
mA
mA
mA
μ
A
μ
A
G
100
G
G
0.7
2
5.8
3.3
2.0
0.9
0.75
1.3
G
G
Standby Current
(Note 6) I
LOAD
= 0mA
Shutdown Threshold
G
G
G
G
V
V
0.25
Shutdown Pin Current
(Note 7)
Quiescent Current in
Shutdown (Note 9)
G
5
μ
A
I
VIN1
: V
IN1
= 20V, V
IN2
= 6V, V
SHDN
= 0V
I
VIN2
: V
IN1
= 6V, V
IN2
= 20V, V
SHDN
= 0V
I
SRC
: V
IN1
= V
IN2
= 20V, V
SHDN
= 0V
G
G
5
5
3
12
12
μ
A
μ
A
μ
A
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