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LT3028 Datasheet(PDF) 7 Page - Linear Technology

Part # LT3028
Description  Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with Independent Inputs
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3028 Datasheet(HTML) 7 Page - Linear Technology

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LT3028
3028f
TYPICAL PERFOR A CE CHARACTERISTICS
Output 2
Input Ripple Rejection
FREQUENCY (kHz)
80
70
60
50
40
30
20
10
0
0.01
1
10
1000
3028 G26
0.1
100
IL = 100mA
VIN2 = 2.3V + 50mVRMS RIPPLE
CBYP = 0
TJ = 25°C
COUT = 10µF
COUT = 1µF
FREQUENCY (kHz)
80
70
60
50
40
30
20
10
0
0.01
1
10
1000
3028 G27
0.1
100
IL = 100mA
VIN2 = 2.3V + 50mVRMS RIPPLE
COUT = 10µF
TJ = 25°C
CBYP = 0.01µF
CBYP = 1000pF
CBYP = 100pF
Output 2
Input Ripple Rejection
Output 2
Input Ripple Rejection
TEMPERATURE (°C)
–50
100
3028 G28
050
80
70
60
50
40
30
20
10
0
–25
25
75
125
VIN2 = VOUT2(NOMINAL) +
1V + 0.5VP-P RIPPLE
AT f = 120Hz
IL = 50mA
Output 1
Input Ripple Rejection
FREQUENCY (Hz)
80
70
60
50
40
30
20
10
0
10
1k
10k
1M
3028 G29
100
100k
IL = 500mA
VIN1 = VOUT1(NOMINAL) +
1V + 50mVRMS RIPPLE
CBYP = 0
TJ = 25°C
COUT = 4.7µF
COUT = 10µF
Output 1
Input Ripple Rejection
FREQUENCY (Hz)
80
70
60
50
40
30
20
10
0
10
1k
10k
1M
3028 G30
100
100k
IL = 500mA
VIN1 = VOUT1(NOMINAL) +
1V + 50mVRMS RIPPLE
COUT = 10µF
TJ = 25°C
CBYP = 0.01µF
CBYP = 100pF
CBYP = 1000pF
Output 1 Ripple Rejection
TEMPERATURE (°C)
–50
100
3028 G31
050
68
66
64
62
60
58
56
54
52
–25
25
75
125
VIN1 = VOUT1(NOMINAL) +
1V + 0.5VP-P RIPPLE
AT f = 120Hz
IL = 500mA
Output 2 Minimum Input Voltage
TEMPERATURE (°C)
–50
2.5
2.0
1.5
1.0
0.5
0
0
50
75
3028 G32
–25
25
100
125
IL = 100mA
VOUT2 = 1.22V
IL = 50mA
TEMPERATURE (°C)
–50
0
50
75
3028 G33
–25
25
100
125
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
IL = 1mA
VOUT1 = 1.22V
IL = 500mA
Output 1 Minimum Input Voltage



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