LTC3735 LINER [Linear Technology], LTC3735 Datasheet - Page 5

• Manufacturer Part Number: LTC3735
• Description: 2-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
1500
2500
2000
1000
100
500
20
10
90
80
70
60
80
70
60
50
40
30
0
0
4
0
0
Active Mode Efficiency
(Figure 14)
Supply Current vs PV
and Mode
Maximum Current Sense
Threshold vs V
V
SENSE(CM)
5
1
V
IN
LOAD CURRENT (A)
= 1.25V
PV
10
5
= 7.5V
CC
V
V
2
IN
RUN/SS
VOLTAGE (V)
RUN/SS
SHUTDOWN
= 20V
15
ON
(V)
3
CC
20
(Soft-Start)
6
Voltage
V
PSI = 0
ID
= 1.468V
4
25
3735 G01
3735 G04
3735 G07
30
7
5
90
80
70
60
75
50
25
76
68
64
60
72
0
0.01
0
0
Deeper Sleep Mode Efficiency
(Figure 14)
Maximum Current Sense
Threshold vs Duty Factor
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
PSI = 0
20
COMMON MODE VOLTAGE (V)
1
V
IN
LOAD CURRENT (A)
0.1
DUTY FACTOR (%)
= 7.5V
40
2
V
IN
= 20V
60
3
1
80
4
3735 G02
3735 G05
3735 G08
100
10
5
–10
–20
–30
100
90
80
70
90
80
70
60
50
40
60
50
80
70
60
50
40
30
20
10
30
20
10
0
0
5
0
0
Efficiency vs Input Voltage
(Figure 14)
Maximum Current Sense
Threshold vs Percent of Nominal
Output Voltage (Foldback)
Current Sense Threshold
vs I
PERCENT OF NOMINAL OUTPUT VOLTAGE (%)
I
V
OUT
OUT
TH
= 20A
= 1.6V
0.5
Voltage
25
INPUT VOLTAGE (V)
10
1
V
ITH
LTC3735
50
(V)
1.5
15
75
2
3735 G03
3735 G06
3735 G09
3735fa
5
100
2.5
20