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LT8551 Datasheet(PDF) 6 Page - Analog Devices

Part # LT8551
Description  Multiphase Boost Converter Expander
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8551 Datasheet(HTML) 6 Page - Analog Devices

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LT8551
6
Rev 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
REG LDO Load Regulation
REG Voltage vs REGSNS Voltage
REG LDO Current Limit
REG Quiescent Current vs VIN
Voltage, Not Switching
REG Quiescent Current vs
Temperature, Not Switching
REG LDO Line Regulation
VCC Quiescent Current vs VIN
Voltage, Not Switching
VCC Quiescent Current vs
Temperature, Not Switching
VCC UVLO Threshold
REGSNS = 5V
IAMPN = 0V
VIN = 12V
REG LDO LOAD CURRENT (mA)
0
45
90
135
180
225
4.8
4.9
5.0
5.1
5.2
5.3
8551 G01
IAMPN = 0.1V
IAMPN = 0V
IAMPN = –0.1V
REGSNS VOLTAGE (V)
3
3.5
4
4.5
5
5.5
6
4.0
4.3
4.6
4.9
5.2
5.5
8551 G02
VIN VOLTAGE (V)
0
10
20
30
40
50
60
70
80
0
60
120
180
240
300
8551 G03
T = 130°C
T = 25°C
T = –50°C
VIN VOLTAGE (V)
5
15
25
35
45
55
65
75
85
5.0
7.5
10.0
12.5
15.0
17.5
20.0
8551 G04
VIN = 6V
VIN = 12V
VIN = 80V
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
5.0
7.5
10.0
12.5
15.0
17.5
20.0
22.5
25.0
8551 G05
LOAD = 0mA
REGSNS – IAMPN = 5V
VIN VOLTAGE (V)
0
10
20
30
40
50
60
70
80
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
8551 G06
VIN VOLTAGE (V)
0
10
20
30
40
50
60
70
80
4.9
5.0
5.1
5.2
5.3
8551 G07
T = 150°C
T = 25°C
T = –50°C
VIN = 6V
VIN = 12V
VIN = 80V
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
4.9
5.0
5.1
5.2
5.3
8551 G08
RISING
FALLING
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
3.3
3.4
3.5
3.6
3.7
3.8
8551 G09



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