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參數(shù)資料
| 型號(hào)： | LBMG |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 20mA, 3V to 80V Low Dropout Micropower Linear Regulator |
| 中文描述： | 20mA的，3V至80V的微功率低壓差線性穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大?。?/td> | 194K |
| 代理商： | LBMG |
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3
LT3014
3014fb
PARAMETER
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
CONDITIONS
I
LOAD
= 100
μ
A
I
LOAD
= 100
μ
A
I
LOAD
= 1mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 20mA
I
LOAD
= 20mA
I
LOAD
= 0mA
I
LOAD
= 100
μ
A
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 20mA
C
OUT
= 0.47
μ
F, I
LOAD
= 20mA, BW = 10Hz to 100kHz
(Note 7)
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V
V
SHDN
= 6V
V
IN
= 6V, V
SHDN
= 0V
V
IN
= 7V(Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz, I
LOAD
= 20mA
V
IN
= 7V, V
OUT
= 0V
V
IN
= 3.3V,
V
OUT
= –0.1V (Note 2)
V
IN
= –80V, V
OUT
= 0V
MIN
TYP
120
MAX
180
250
270
360
350
450
410
570
20
30
100
450
1000
UNITS
mV
mV
mV
mV
mV
mV
mV
mV
●
200
●
300
●
350
●
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 4, 6)
●
●
●
●
●
7
μ
A
μ
A
μ
A
μ
A
μ
A
12
40
250
650
115
4
1.3
1.3
1
0
1
70
70
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
μ
V
RMS
10
2
nA
V
V
μ
A
μ
A
μ
A
dB
mA
mA
mA
●
●
0.25
SHDN Pin Current
(Note 8)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
●
●
4
1
4
●
60
●
25
Input Reverse
Leakage Current
Reverse Output Current
(Note 9)
●
6
V
OUT
= 1.22V, V
IN
< 1.22V (Note 2)
2
4
μ
A
ELECTRICAL CHARACTERISTICS
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
J
= 25
°
C.
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT3014 is tested and specified for these conditions with the
ADJ pin connected to the OUT pin.
Note 3:
Operating conditions are limited by maximum junction
temperature. The regulated output voltage specification will not apply for
all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 4:
To satisfy requirements for minimum input voltage, the LT3014 is
tested and specified for these conditions with an external resistor divider
(249k bottom, 392k top) for an output voltage of 3.3V. The external
resistor divider adds a 5
μ
A DC load on the output.
Note 5:
Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage is equal to (V
IN
– V
DROPOUT
).
Note 6:
GND pin current is tested with V
IN
= V
OUT
(nominal) and a current
source load. This means the device is tested while operating in its dropout
region. This is the worst-case GND pin current. The GND pin current
decreases slightly at higher input voltages.
Note 7:
ADJ pin bias current flows into the ADJ pin.
Note 8:
SHDN pin current flows out of the SHDN pin.
Note 9:
Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current flows into the OUT
pin and out of the GND pin.
Note 10:
The LT3014E is guaranteed to meet performance specifications
from 0
°
C to 125
°
C operating junction temperature. Specifications over
the –40
°
C to 125
°
C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
Note 11:
This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125
°
C when overtemperature protection is
active. Continuous operation above the specified maximum operating
junction temperature may impair device reliability.
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