LTC3854 LINER [Linear Technology], LTC3854 Datasheet - Page 5

• Manufacturer Part Number: LTC3854
• Description: Small Footprint, Wide VIN Range Synchronous Step-Down DC/DC Controller
• Manufacturer: LINER [Linear Technology]

Typical perForMance characTerisTics
1.17
1.16
1.15
1.14
1.13
1.12
1.11
1.10
1.09
60
58
56
54
52
50
48
46
44
42
40
6
0
Quiescent Current vs V
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
11
1
COMMON MODE VOLTAGE (V)
V
OUT
16
2
= 5V
TG
BG
I
L
21
3
V
Switching Waveforms at No Load
IN
(V)
4
26
IN
5
31
6
1µs/DIV
36
3854 G08
3854 G11
7
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
65
60
55
50
45
40
35
–45
3854 G06
0
Quiescent Current vs Temperature
Maximum Current Sense Threshold
vs Duty Cycle
–25
20
–5
TEMPERATURE (°C)
40
DUTY CYCLE (%)
15
V
60
OUT
35
= 2.5V
55
80
BG
TG
I
L
Switching Waveforms at High
Duty Cycle, No Load
75
100
95
3854 G09
3854 G12
120
2µs/DIV
5.05
5.00
4.95
4.90
4.85
4.80
60
50
40
30
20
10
0
4
0
INTV
Maximum Current Sense Voltage
vs Feedback Voltage
(Current Foldback)
0.05
9
CC
0.15
vs Input Voltage
14
3854 G07
0.25
19
V
FB (V)
IN
0.35
LTC3854
(V)
24
0.45
29
0.55 0.65
34
3854 G10
3854 G13
3854fa

39
0.75