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LT3080EST Datasheet(PDF) 6 Page - Linear Technology

Part # LT3080EST
Description  Adjustable1.1A Single Resistor Low Dropout Regulator
PDF  26 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3080EST Datasheet(HTML) 6 Page - Linear Technology

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LT3080
6
3080fb
TYPICAL PERFORMANCE CHARACTERISTICS
VCONTROL Pin Current
Residual Output Voltage with
Less Than Minimum Load
Ripple Rejection, Single Supply
Ripple Rejection, Dual Supply,
IN Pin
Ripple Rejection, Dual Supply,
VCONTROL Pin
LOAD CURRENT (A)
0
0
5
10
15
20
30
0.2
0.4
0.6
0.8
3080 G19
1.0
1.2
25
VCONTROL – VOUT = 2V
VIN – VOUT = 1V
TJ = –50°C
TJ = 125°C
TJ = 25°C
RTEST (Ω)
0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3080 G20
2k
1k
VIN = 20V
VIN = 5V
SET PIN = 0V
VIN
VOUT
RTEST
VIN = 10V
FREQUENCY (Hz)
0
40
100
10k
100k
100
10
1k
1M
3080 G21
20
60
80
30
90
10
50
70
VIN = VCONTROL = VOUT (NOMINAL) + 2V
RIPPLE = 50mVP-P
COUT = 2.2µF CERAMIC
ILOAD = 100mA
ILOAD = 1.1A
FREQUENCY (Hz)
0
40
100
10k
100k
100
10
1k
1M
3080 G22
20
60
80
30
90
10
50
70
VIN = VOUT (NOMINAL) + 1V
VCONTROL = VOUT (NOMINAL) +2V
COUT = 2.2µF CERAMIC
RIPPLE = 50mVP-P
ILOAD = 100mA
ILOAD = 1.1A
FREQUENCY (Hz)
0
40
100
10k
100k
100
10
1k
1M
3080 G23
20
60
80
30
90
10
50
70
VIN = VOUT (NOMINAL) + 1V
VCONTROL = VOUT (NOMINAL) +2V
RIPPLE = 50mVP-P
COUT = 2.2µF CERAMIC
ILOAD = 1.1A
VCONTROL Pin Current
INPUT-TO-OUTPUT DIFFERENTIAL (V)
0
0
5
10
15
20
25
6
12
18
24
3080 G18
30
36*
ILOAD = 1.1A
ILOAD = 1mA
DEVICE IN
CURRENT LIMIT
*SEE NOTE 9 IN ELECTRICAL
CHARACTERISTICS TABLE
FREQUENCY (Hz)
1
10k
10k
100k
100
10
1k
3080 G25
100
10
1k
0.1
1k
10
1.0
100
Ripple Rejection (120Hz)
Noise Spectral Density
TEMPERATURE (°C)
–50
70
71
73
74
75
80
77
0
50
75
3080 G24
72
78
79
76
–25
25
100 125
150
SINGLE SUPPLY OPERATION
VIN = VOUT(NOMINAL) + 2V
RIPPLE = 500mVP-P, f = 120Hz
ILOAD = 1.1A
CSET = 0.1μF, COUT = 2.2μF



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