LTC3862 LINER [Linear Technology], LTC3862 Datasheet - Page 7

• Manufacturer Part Number: LTC3862
• Description: Multi-Phase Current Mode Step-Up DC/DC Controller
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
–0.4
–1.0
–0.1
–0.2
–0.3
–0.5
–0.6
–0.7
–0.8
–0.9
–5.3
–5.0
–5.1
–5.2
–5.5
–5.6
–5.4
80
75
70
65
60
55
50
0
–50
–50
0
Maximum Current Sense
Threshold vs Duty Cycle
RUN (Off) Source Current vs
Temperature
Soft-Start Current vs Temperature
10
–25
–25
20
0
0
30
TEMPERATURE (°C)
TEMPERATURE (°C)
DUTY CYCLE (%)
25
25
40
SLOPE = 1
SLOPE = 1.66
50
50
50
60
75
75
SLOPE = 0.625
70
100 125 150
100
80
125
3862 G21vv
90
3862 G18
3862 G24
100
150
1.30
1.25
1.20
1.15
1.10
–2
–3
–5
–6
–1
–2
–3
–4
–5
–6
–7
–8
–1
–4
0
0
–50
–50
0
RUN Threshold vs Temperature
Soft-Start Current vs
Soft-Start Voltage
RUN (On) Source Current vs
Temperature
–25
–25
0.5
SOFT-START VOLTAGE (V)
0
0
1
TEMPERATURE (°C)
TEMPERATURE (°C)
1.5
25
25
50
50
2
OFF
ON
2.5
75
75
100 125 150
100
3
125
3.5
3862 G09
1344 G06
3862 G25
150
4
307
306
305
304
303
302
301
300
299
298
1.5
1.4
1.2
1.0
1.3
1.1
–7
–1
–3
–4
–5
–6
–2
0
–50
0
4
RUN Threshold vs Input Voltage
RUN Source Current vs
Input Voltage
Oscillator Frequency vs
Temperature
–25
8
5
10
12
0
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
25
15
16
LTC3862
20
20
50
OFF
ON
24
75
25
100
30
28
125
35
32
3862 G20
3862 G23
3862 G26
3862fb
7
150
40
36