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LTC3882 Datasheet(PDF) 10 Page - Linear Technology

Part # LTC3882
Description  Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3882 Datasheet(HTML) 10 Page - Linear Technology

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LTC3882
10
3882f
For more information www.linear.com/LTC3882
TYPICAL PERFORMANCE CHARACTERISTICS
Output Overvoltage Threshold
Error vs Temperature
Output Overcurrent Threshold
Error vs Temperature
PWM Frequency vs Temperature
VIN(SNS) ADC TUE
VOUT ADC TUE
IOUT ADC TUE
VINSNS (V)
0
0
–1
–3
–5
–7
–2
–4
–6
–8
–9
30
35
3882 G19
40
25
10
20
5
15
VOUT (V)
0.5
0.40
0.30
0.20
0.10
0
–0.10
–0.20
–0.30
–0.40
4.5
3882 G20
1.5
2.5
3.5
5.5
4
1
2
3
5
OUTPUT CURRENT (A)
0
0
2
4
20
3882 G21
–2
–4
–8
5
10
15
–6
8
6
TEMPERATURE (°C)
–40
0.10
0.05
0
–0.10
–0.05
–0.15
60
80
3882 G16
120
100
20
40
–20
0
VOUT_OV_FAULT_LIMIT = 2V
VOUT RANGE = 1
1.2
0.8
0.4
0
1.0
0.6
0.2
–0.2
–0.4
3882 G17
TEMPERATURE (°C)
–40
60
80
120
100
20
40
–20
0
500.2
500.1
499.9
499.7
500.0
499.8
499.6
499.5
3882 G18
TEMPERATURE (°C)
–40
60
80
120
100
20
40
–20
0
FREQUENCY_SWITCH = 500kHz
Regulated Output vs Temperature
VOUT_COMMAND INL
VOUT_COMMAND DNL
VOUT (V)
0.3
1.5
1.0
0
0.5
–0.5
–1.0
4.3
5.1
3882 G14
5.5
3.5
1.1
2.7
1.9
VOUT (V)
0.3
1.0
0.8
0.4
0
–0.4
0.6
0.2
–0.2
–0.6
–0.8
4.3
5.1
3882 G15
5.5
3.5
1.1
2.7
1.9
TEMPERATURE (°C)
–40
1.8000
1.7995
1.7985
1.7975
1.7990
1.7980
1.7970
60
80
3882 G13
120
100
20
40
–20
0
VOUT_COMMAND = 1.8V
DIGITAL SERVO OFF


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