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LTC3830 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3830
Description  High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3830 Datasheet(HTML) 4 Page - Linear Technology

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LTC3830/LTC3830-1
3830fa
TYPICAL PERFOR A CE CHARACTERISTICS
Load Regulation
OUTPUT CURRENT (A)
–15
3.33
0
3830 G02
3.30
3.28
–10
–5
5
3.27
3.26
3.34
3.32
3.31
3.29
10
15
TA = 25°C
REFER TO FIGURE 12
Line Regulation
SUPPLY VOLTAGE (V)
3
1.267
1.271
1.275
7
3830 G03
1.263
1.259
1.265
1.269
1.273
1.261
1.257
1.255
2
6
10
–2
–6
0
4
8
–4
–8
–10
4
5
6
8
TA = 25°C
Output Voltage Temperature Drift
TEMPERATURE (°C)
–50
3.33
25
3830 G04
3.30
3.28
–25
0
50
3.27
3.26
3.34
3.32
3.31
3.29
30
0
–20
–30
–40
40
20
10
–10
75
100
125
REFER TO FIGURE 12
OUTPUT = NO LOAD
Error Amplifier Transconductance
vs Temperature
TEMPERATURE (˚C)
–50
700
750
800
25
75
3830 G05
650
600
–25
0
50
100
125
550
500
TEMPERATURE (°C)
–50
180
25
3830 G06
120
80
–25
0
50
60
40
200
160
140
100
75
100
125
TEMPERATURE (°C)
–50
40
45
50
55
60
–25
0
25
50
2830 G07
75
100
125
Error Amplifier Sink/Source
Current vs Temperature
Error Amplifier Open-Loop Gain
vs Temperature
Oscillator Frequency
vs Temperature
Oscillator Frequency
vs FREQSET Input Current
Oscillator (VSAWH – VSAWL)
vs External Sync Frequency
TEMPERATURE (°C)
–50
160
170
190
200
210
50
250
3831 G08
180
0
–25
75
100
25
125
220
230
240
FREQSET FLOATING
FREQSET INPUT CURRENT (µA)
–40
0
100
200
300
400
600
–30
–20
–10
0
3830 G09
10
20
500
TA = 25°C
EXTERNAL SYNC FREQUENCY (kHz)
100
0.5
0.6
0.8
0.9
1.0
1.5
1.2
200
300
3830 G10
0.7
1.3
1.4
1.1
400
500
TA = 25°C


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