LTC3854 LINER [Linear Technology], LTC3854 Datasheet - Page 6

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

LTC3854
Typical perForMance characTerisTics

5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
–10
440
430
420
410
400
390
380
60
50
40
30
20
10
0
–40
0
0
Oscillator Frequency
vs Temperature
Current Sense Threshold
vs I
INTV
V
IN
–20
TH
= 15V
5
0.5
CC
Voltage
Load Regulation
10
0
LDO CURRENT (mA)
TEMPERATURE (°C)
1
20
15
V
ITH
1.5
20
40
(V)
60
25
2
80
30
2.5
100
35
3854 G18
3854 G21
3854 G15
120
40
3
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
30
25
20
15
10
5
0
–40
–45
4
Undervoltage Lockout Falling
Threshold vs Temperature
Shutdown Current
vs Input Voltage
INTV
I
V
LOAD
IN
–30
–20
8
= 15V
CC
= 10mA
–15
12
vs Temperature
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
16
20
15
20
V
IN
30
40
(V)
24
45 60 75 90
60
28
80
32
100
36
3854 G16
3854 G19
3854 G22
105
120
40
1.40
1.35
1.30
1.25
1.20
1.15
1.10
440
430
420
410
400
390
380
370
360
20
19
18
17
16
15
14
13
12
11
10
–45
–45
5
Oscillator Frequency vs V
Shutdown Current vs Temperature
RUN/SS Shutdown Threshold
vs Temperature
V
IN
–30
–30
= 15V
10
–15
–15
15
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
15
15
20
V
IN
30
30
(V)
25
45 60
45 60 75 90
30
IN
75 90
35
3854 G17
3854 G20
3854 G23
3854fa
105
105
40