LT1120A(RevB) 查看數據表（PDF） - Linear Technology
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LT1120A Datasheet PDF : 12 Pages
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LT1120
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Comparator
Offset Voltage
q
10
mV
Bias Current
Gain
Output Sink Current
Leakage Current
VIN = 36V (Note 2)
∆VOUT = 29V, RL = 20k
VIN = 4.5V (Note 3)
VIN = 36V
q
15
60
nA
q 1000
V/V
q5
10
mA
q
8
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
a device may be impaired.
Note 2: TA > 85°C, I bias maximum is 100nA.
Note 3: For TA ≤ – 40°C output current sink drops to 2.5mA.
TYPICAL PERFOR A CE CHARACTERISTICS
Regulator Load Regulation
0.3
TJ = –55°C
0.2
TJ = 25°C
0.1
0
TJ = 125°C
–0.1
–0.2
PRELOAD = 100µA
–0.3
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
1120 G01
Dropout Voltage
1
∆VOUT = 100mV
Supply Current
100
TJ = –55°C TO 125°C
10
1
0.1
0.01
0.1
1
10
100
1000
REGULATOR OUTPUT CURRENT (mA)
1120 G02
Regulator Minimum Load Current
100
0.1
10
0.01
0.1
1
10
100
1000
REGULATOR OUTPUT CURRENT (mA)
1120 G04
1
70 80 90 100 110 120 130 140 150
TEMPERATURE (°C)
1120 G05
Regulator Short-Circuit Current
350
300
250
200
150
100
50
CURRENT LIMIT TIED TO GROUND
0
–50
–10 30
70 110 150
TEMPERATURE (°C)
1120 G03
Regulator Ripple Rejection
70
65
IOUT = 100mA
60
55
IOUT = 10mA
50
IOUT = 1mA
45
40
VIN = 10VDC, 1VP–P
35
VOUT = 5V
COUT = 10µF
30
10
100
1k
10k
RIPPLE FREQUENCY (Hz)
100k
1120 G06
4
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