參數(shù)資料
型號(hào): LT1521IS8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述: 3.8 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.75 V DROPOUT, PDSO8
封裝: 0.150 INCH, PLASTIC, SO-8
文件頁(yè)數(shù): 3/16頁(yè)
文件大?。?/td> 294K
代理商: LT1521IS8
3
LT1521/LT1521-3
LT1521-3.3/LT1521-5
PARAMETER
Regulated Output Voltage
(Note 4)
CONDITIONS
LT1521-3
MIN
2.950
2.900
3.250
3.200
4.925
4.850
3.695
3.640
TYP
3.000
3.000
3.300
3.300
5.000
5.000
3.750
3.750
1.5
1.5
1.5
1.5
– 20
– 20
– 25
– 20
– 20
– 20
– 25
– 20
130
MAX
3.050
3.100
3.350
3.400
5.075
5.150
3.805
3.860
20
20
20
20
–30
–30
–45
–30
–55
–55
–75
–55
170
250
350
450
420
550
470
600
600
750
20
100
450
1.5
2.5
4.0
12.0
100
2.80
UNITS
V
IN
= 3.5V, I
OUT
= 1mA, T
J
= 25
°
C
4V < V
IN
< 20V, 1mA < I
OUT
< 300mA
V
IN
= 3.8V, I
OUT
= 1mA, T
J
= 25
°
C
4.3V < V
IN
< 20V, 1mA < I
OUT
< 300mA
V
IN
= 5.5V, I
OUT
= 1mA, T
J
= 25
°
C
6V < V
IN
< 20V, 1mA < I
OUT
< 300mA
V
IN
= 4.3V, I
OUT
= 1mA, T
J
= 25
°
C
4.8V < V
IN
< 20V, 1mA < I
OUT
< 300mA
V
IN
= 4.5 to 20V, I
OUT
= 1mA
V
IN
= 4.8 to 20V, I
OUT
= 1mA
V
IN
= 5.5 to 20V, I
OUT
= 1mA
V
IN
= 4.3 to 20V, I
OUT
= 1mA
I
LOAD
= 1mA to 300mA, T
J
25
°
C
I
LOAD
= 1mA to 300mA, T
J
25
°
C
I
LOAD
= 1mA to 300mA, T
J
25
°
C
I
LOAD
= 1mA to 300mA, T
J
25
°
C
I
LOAD
= 1mA to 300mA, T
J
>25
°
C
I
LOAD
= 1mA to 300mA, T
J
> 25
°
C
I
LOAD
= 1mA to 300mA, T
J
> 25
°
C
I
LOAD
= 1mA to 300mA, T
J
> 25
°
C
I
LOAD
= 1mA, T
J
= 25
°
C
I
LOAD
= 1mA
I
LOAD
= 50mA, T
J
= 25
°
C
I
LOAD
= 50mA
I
LOAD
= 100mA, T
J
= 25
°
C
I
LOAD
= 100mA
I
LOAD
= 150mA, T
J
= 25
°
C
I
LOAD
= 150mA
I
LOAD
= 300mA, T
J
= 25
°
C
I
LOAD
= 300mA
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 150mA
I
LOAD
= 300mA
T
J
= 25
°
C
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V
V
IN
= V
OUT
(NOMINAL) + 1V, V
SHDN
= 0V
V
IN
– V
OUT
= 1V(Avg), V
RIPPLE
= 0.5V
P–P
,
f
RIPPLE
= 120Hz, I
LOAD
= 150mA
V
IN
– V
OUT
= 7V, T
J
= 25
°
C
V
IN
= V
OUT
(NOMINAL) + 1.5V,
V
OUT
= –0.1V
V
V
V
V
V
V
V
V
G
LT1521-3.3
G
LT1521-5
G
LT1521 (Note 5)
G
Line Regulation
LT1521-3
LT1521-3.3
LT1521-5
LT1521 (Note 5)
LT1521-3
LT1521-3.3
LT1521-5
LT1521 (Note 5)
LT1521-3
LT1521-3.3
LT1521-5
LT1521 (Note 5)
G
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
μ
A
μ
A
μ
A
mA
mA
mA
mA
nA
G
G
G
Load Regulation
Dropout Voltage (Note 6)
G
290
G
350
G
400
G
500
G
Ground Pin Current (Note 7)
G
12
65
300
0.8
1.4
2.2
6.5
50
1.20
0.75
2.0
6
58
G
G
G
G
G
G
Adjust Pin Bias Current (Notes 5, 8)
Shutdown Threshold
G
G
V
V
0.25
Shutdown Pin Current (Note 9)
Quiescent Current in Shutdown (Note 10)
Ripple Rejection
G
5.0
12
μ
A
μ
A
dB
G
50
Current Limit
400
400
800
mA
mA
G
320
ELECTRICAL CHARACTERISTICS
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