LTC3830 LINER [Linear Technology], LTC3830 Datasheet - Page 4

• Manufacturer Part Number: LTC3830
• Description: High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation
• Manufacturer: LINER [Linear Technology]

LTC3830/LTC3830-1
TYPICAL PERFOR A CE CHARACTERISTICS
4
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
250
230
220
210
200
180
240
190
170
160
–50
–15
–50
Load Regulation
Output Voltage Temperature Drift
Oscillator Frequency
vs Temperature
T
REFER TO FIGURE 12
REFER TO FIGURE 12
OUTPUT = NO LOAD
FREQSET FLOATING
A
= 25 C
–25
–25
–10
OUTPUT CURRENT (A)
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
–5
25
25
0
50
50
5
75
75
W
10
100
100
3831 G08
3830 G02
3830 G04
U
125
125
15
40
30
20
10
0
–10
–20
–30
–40
1.275
1.273
1.271
1.269
1.267
1.265
1.263
1.261
1.259
1.257
1.255
600
500
400
300
200
100
3
Line Regulation
0
T
200
180
160
140
120
100
–40
A
80
60
40
Oscillator Frequency
vs FREQSET Input Current
= 25 C
–50
Error Amplifier Sink/Source
Current vs Temperature
4
–30
–25
FREQSET INPUT CURRENT ( A)
SUPPLY VOLTAGE (V)
–20
5
0
TEMPERATURE ( C)
–10
25
6
50
0
7
75
T
A
3830 G03
10
= 25 C
100
3830 G09
8
3830 G06
10
8
6
4
2
0
–2
–4
–6
–8
–10
20
125
800
750
650
600
550
500
700
1.1
0.5
1.5
1.4
1.3
1.2
1.0
0.9
0.8
0.7
0.6
60
55
50
45
40
–50
–50
100
Error Amplifier Open-Loop Gain
vs Temperature
Oscillator (V
vs External Sync Frequency
Error Amplifier Transconductance
vs Temperature
T
A
= 25 C
–25
–25
EXTERNAL SYNC FREQUENCY (kHz)
200
0
0
TEMPERATURE ( C)
TEMPERATURE (˚C)
SAWH
25
25
300
– V
50
50
SAWL
75
75
400
sn3830 3830fs
)
100
100
3830 G05
2830 G07
3830 G10
125
500
125