ltc3730 Linear Technology Corporation, ltc3730 Datasheet - Page 6

• Manufacturer Part Number: ltc3730
• Description: 3-phase, 5-bit Intel Mobile Vid, 600khz, Synchronous Buck Controller
• Manufacturer: Linear Technology Corporation

LTC3730
TYPICAL PERFOR A CE CHARACTERISTICS
6
80
70
60
50
40
30
20
10
80
70
60
50
40
30
20
10
0
0
5
4
3
2
0
1
PERCENTAGE OF NOMINAL OUTPUT VOLTAGE (%)
–45
0
0
Maximum I
Percentage of Nominal Output vs
Peak I
Short-Circuit Arming and Latchoff
vs Temperature
ARMING
LATCHOFF
–30
10
1
SENSE
20
–15
V
30
TEMPERATURE (°C)
RUN/SS
0
SENSE
2
(Foldback)
40
15
VOLTAGE (V)
50
3
vs V
30
60
RUN/SS
45
4
70
W
60
80
5
75
3730 G10
3730 G13
90
3730 G15
U
100
90
6
2.4
2.0
1.6
1.2
0.8
2.8
0.4
0
–45
100
Supply Current vs Temperature
75
50
25
98
94
90
96
92
0
V
–45
–30
CC
Maximum Current Sense
Threshold vs Duty Factor
0
Maximum Duty Factor vs
Temperature
= 5V
–30
–15
20
–15
TEMPERATURE (°C)
0
TEMPERATURE (°C)
DUTY FACTOR (%)
0
15
40
15
30
30
45
60
45
V
60
PLLFLTR
60
80
75
3730 G11
3730 G13a
= 0V
75
3730 G16
90
100
80
60
40
20
0
100
90
–15
–10
–20
–30
2.0
1.0
2.5
1.5
0.5
40
30
20
10
75
60
45
30
15
0
0
0
–45
RUN/SS Pull-Up Current vs
Temperature
0
Peak Current Threshold vs V
0
I
SENSE
V
–30
RUN/SS
–15
Pin Current vs V
1
0.6
= 1.9V
TEMPERATURE (°C)
0
2
15
V
V
OUT
ITH
1.2
30
(V)
(V)
3
45
OUT
1.8
60
4
ITH
75
3730 G12
3730 G14
3730 G17
3730fa
90
2.4
5