LTC3703-5 Linear Technology, LTC3703-5 Datasheet - Page 4

• Manufacturer Part Number: LTC3703-5
• Description: 60V Synchronous Switching Regulator Controller
• Manufacturer: Linear Technology

LTC3703-5
TYPICAL PERFOR A CE CHARACTERISTICS
4
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
95
85
80
90
35
30
25
20
15
10
0
5
0
–60 –40 –20
0
Efficiency vs Input Voltage
0
V
V
vs Temperature
V
f = 250kHz
FORCED CONTINUOUS
V
V
CC
CC
OUT
CC
CC
RISING
= 5V
Current vs V
Shutdown Current
2.5
= 5V
10
I
OUT
INPUT VOLTAGE (V)
TEMPERATURE ( C)
20
V
5
CC
0
COMP = 1.5V
= 5A
VOLTAGE (V)
V
FB
I
7.5
20
30
CC
OUT
= 0V
Voltage
= 1A
40
40
10
60
W
12.5
50
37035 G04
80
37035 G07
37035 G01
U
100
60
15
0.803
0.802
0.801
0.800
0.799
0.798
100
95
90
85
80
4
3
2
1
0
–60 –40 –20
–60 –40 –20
0
Efficiency vs Load Current
V
Reference Voltage
vs Temperature
V
f = 250kHz
PULSE SKIP ENABLED
CC
OUT
Current vs Temperature
= 12V
1
LOAD CURRENT (A)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
2
V
V
IN
IN
20
20
COMP = 1.5V
= 42V
= 24V
3
40
40
V
FB
60
60
= 0V
4
37035 G08
T
37035 G02
37035 G05
80
80
A
= 25 C (unless otherwise noted).
100
100
5
50mV/DIV
2A/DIV
V
I
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
120
100
OUT
OUT
60
80
40
20
0
–60 –40 –20
0
V
V
1A TO 5A LOAD STEP
Load Transient Response
V
Voltage
Normalized Frequency
vs Temperature
IN
OUT
CC
= 50V
2
= 12V
Shutdown Current vs V
4
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TEMPERATURE ( C)
V
CC
0
6
VOLTAGE (V)
50 s/DIV
20
8
40
10
60
12
CC
37035 G03
80
37035 G06
37035 G09
14
37035f
100
16