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LT3028 Datasheet(PDF) 5 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) 5 Page - Linear Technology

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LT3028
3028f
TYPICAL PERFOR A CE CHARACTERISTICS
Quiescent Current (Per Output)
TEMPERATURE (°C)
–50
100
3028 G07
050
–25
25
75
125
50
45
40
35
30
25
20
15
10
5
0
VIN = 6V
RL = 250k, IL = 5µA
VSHDN = VIN
TEMPERATURE (°C)
–50
100
3028 G08
050
1.240
1.235
1.230
1.225
1.220
1.215
1.210
1.205
1.200
–25
25
75
125
IL = 1mA
INPUT VOLTAGE (V)
0
40
35
30
25
20
15
10
5
0
16
3028 G09
4
2
6
10
14
18
8
12
20
VSHDN = VIN
TJ = 25°C
RL = 250k
VSHDN = 0V
ADJ1 or ADJ2 Pin Voltage
Quiescent Current (Per Output)
Output 2 GND Pin Current
INPUT VOLTAGE (V)
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
3028 G10
0123
4
5
67
8
9
10
TJ = 25°C
*FOR VOUT = 1.22V
RL = 12.2Ω
IL = 100mA*
RL = 24.4Ω
IL = 50mA*
RL = 122Ω
IL = 10mA*
RL = 1.22k
IL = 1mA*
Output 2
GND Pin Current vs ILOAD
OUTPUT CURRENT (mA)
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
3028 G11
0
102030 40
50 60 70
80 90 100
VIN = VOUT(NOMINAL) + 1V
TJ = 25°C
Output 1 GND Pin Current
INPUT VOLTAGE (V)
1200
1000
800
600
400
200
0
3028 G12
0123
4
5
67
8
9
10
RL = 24.4Ω
IL = 50mA*
RL = 122Ω
IL = 10mA*
RL = 1.22k
IL = 1mA*
TJ = 25°C
VIN = VSHDN
*FOR VOUT = 1.22V
Output 1 GND Pin Current
Output 1
GND Pin Current vs ILOAD
SHDN1 or SHDN2 Pin Threshold
(On-to-Off)
INPUT VOLTAGE (V)
12
10
8
6
4
2
0
3028 G13
0123
4
5
67
8
9
10
RL = 2.44Ω
IL = 500mA*
RL = 4.07Ω
IL = 300mA*
RL = 12.2Ω
IL = 100mA*
TJ = 25°C
VIN = VSHDN
*FOR VOUT = 1.22V
OUTPUT CURRENT (mA)
12
10
8
6
4
2
0
3028 G14
0
50 100 150 200 250 300 350 400 450 500
VIN = VOUT(NOMINAL) + 1V
TJ = 25°C
TEMPERATURE (°C)
–50
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
75
3028 G15
–25
25
100
125
IL = 1mA



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