參數(shù)資料
型號(hào)： LT3021-1.8
廠商： Linear Technology Corporation
英文描述： 500mA, Low Voltage, Very Low Dropout Linear Regulator
中文描述： 500mA的，低電壓，非常低壓差線性穩(wěn)壓器
文件頁(yè)數(shù)： 3/16頁(yè)
文件大小： 235K
代理商： LT3021-1.8
3
LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
3021fa
Minimum Input Voltage
(Notes 5,14)
ADJ Pin Voltage (Notes 4, 5)
I
LOAD
= 500mA, T
J
> 0
°
C
I
LOAD
= 500mA, T
J
< 0
°
C
V
IN
= 1.5V, I
LOAD
= 1mA
1.15V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
LT3021-1.2
V
IN
= 1.5V, I
LOAD
= 1mA
1.5V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
LT3021-1.5
V
IN
= 1.8V, I
LOAD
= 1mA
1.8V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
LT3021-1.8
V
IN
= 2.1V, I
LOAD
= 1mA
2.1V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
LT3021
V
IN
= 1.15V to 10V, I
LOAD
= 1mA
LT3021-1.2
V
IN
= 1.5V to 10V, I
LOAD
= 1mA
LT3021-1.5
V
IN
= 1.8V to 10V, I
LOAD
= 1mA
LT3021-1.8
V
IN
= 2.1V to 10V, I
LOAD
= 1mA
LT3021
V
IN
= 1.15V,
I
LOAD
= 1mA to 500mA
LT3021-1.2
V
IN
= 1.5V,
I
LOAD
= 1mA to 500mA
LT3021-1.5
V
IN
= 1.8V,
I
LOAD
= 1mA to 500mA
LT3021-1.8
V
IN
= 2.1V,
I
LOAD
= 1mA to 500mA
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 500mA
I
LOAD
= 500mA
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 100mA
I
LOAD
= 500mA
C
OUT
= 4.7
μ
F, I
LOAD
= 500mA, BW = 10Hz to 100kHz, V
OUT
= 1.2V
V
ADJ
= 0.2V, V
IN
= 1.2V (Notes 6, 9)
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V, V
IN
= 10V
V
SHDN
= 10V, V
IN
= 10V
V
IN
= 6V, V
SHDN
= 0V
LT3021
V
IN
– V
OUT
= 1V, V
RIP
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
LT3021-1.2
V
IN
– V
OUT
= 1V, V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
LT3021-1.5
V
IN
– V
OUT
= 1V, V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
LT3021-1.8
V
IN
– V
OUT
= 1V, V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
0.9
0.9
200
200
1.200
1.200
1.500
1.500
1.800
1.800
0
0
0
0
0.4
1
1.5
2
45
1.05
1.10
204
206
1.224
1.236
1.530
1.545
1.836
1.854
+1.75
10.5
13
15.8
2
6
7.5
9
75
110
190
285
250
V
V
196
193
1.176
1.157
1.470
1.447
1.764
1.737
–1.75
–10.5
–13
–15.8
–2
–6
–7.5
–9
mV
mV
●
Regulated Output Voltage
(Note 4)
V
V
V
V
V
V
●
●
●
Line Regulation (Note 6)
●
●
●
●
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
μ
A
μ
A
mA
mA
Load Regulation (Note 6)
Dropout Voltage (Notes 7, 12)
●
155
●
GND Pin Current
V
IN
= V
OUT(NOMINAL)
+ 0.4V
(Notes 8, 12)
●
110
920
2.25
6.20
300
20
0.61
0.61
●
10
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
μ
V
RMS
50
0.9
nA
V
V
μ
A
μ
A
μ
A
dB
●
●
0.25
SHDN Pin Current (Note 10)
●
●
±
1
9.5
9
3
3
Quiescent Current in Shutdown
Ripple Rejection (Note 6)
70
60
dB
58
dB
56
dB
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
J
= 25
°
C.
PARAMETER
CONDITIONS
ELECTRICAL CHARACTERISTICS
MIN
TYP
MAX
UNITS
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