LTC3728LX Linear Technology, LTC3728LX Datasheet - Page 5

• Manufacturer Part Number: LTC3728LX
• Description: 2-Phase Synchronous Regulators
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
1000
800
600
400
200
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
60
20
80
40
0
0
0
0
Internal 5V LDO Line Regulation
Maximum Current Sense Threshold
vs V
0
Supply Current vs Input Voltage
and Mode (Figure 13)
I
V
LOAD
SENSE(CM)
RUN/SS
5
5
1
= 1mA
SHUTDOWN
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
= 1.6V
10
10
(Soft-Start)
2
V
BOTH
CONTROLLERS ON
RUN/SS
15
15
3
(V)
20
20
4
W
25
25
5
3728L G07
3728L G04
3728L G10
U
30
30
6
200
100
150
75
50
25
64
50
80
76
72
68
60
0
0
0
0
EXTV
Maximum Current Sense Threshold
vs Duty Factor
0
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
CC
20
COMMON MODE VOLTAGE (V)
1
10
Voltage Drop
DUTY FACTOR (%)
CURRENT (mA)
40
2
20
60
3
30
80
4
3728L G05
3728L G08
3728L G11
LTC3728L/LTC3728LX
100
40
5
5.05
5.00
4.85
4.75
4.70
4.95
4.90
4.80
–10
–20
–30
80
70
60
50
40
30
20
10
90
80
70
60
50
40
10
30
20
0
0
– 50
0
0
Maximum Current Sense Threshold
vs Percent of Nominal Output
Voltage (Foldback)
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
Current Sense Threshold
vs I
INTV
Voltage vs Temperature
– 25
TH
CC
0.5
Voltage
EXTV
and EXTV
25
www.DataSheet4U.com
0
TEMPERATURE ( C)
CC
SWITCHOVER THRESHOLD
INTV
1
25
V
ITH
50
CC
CC
(V)
50
VOLTAGE
1.5
Switch
75
75
2
100
3728L G06
3728L G09
3728L G12
3728lxfa
5
100
125
2.5