ltc3730 Linear Technology Corporation, ltc3730 Datasheet - Page 7

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

TYPICAL PERFOR A CE CHARACTERISTICS
AC, 20mV/DIV
AC, 20mV/DIV
10V/DIV
10V/DIV
10V/DIV
10V/DIV
10V/DIV
10V/DIV
V
V
V
V
V
V
V
V
SW1
SW2
SW3
OUT
SW1
SW2
SW3
OUT
Continuous Mode at 1Amp, Light
Load Current (Circuit of Figure 14)
Shed Mode at 1Amp, Light Load
Current (Circuit of Figure 14)
V
V
V
FREQUENCY = 250kHz
V
V
V
FREQUENCY = 250kHz
IN
OUT
FCB
IN
OUT
FCB
= 12V
= 12V
= 0V
= V
= 1.5V
= 1.5V
CC
4µs/DIV
4µs/DIV
W
U
3730 G20
3730 G22
60
50
40
30
20
10
0
0.1
Operational Amplifier Gain-Phase
1k
100µF 100k
IN
1
+
–
FREQUENCY (kHz)
10
5k
AC, 20mV/DIV
AC, 20mV/DIV
100
10V/DIV
10V/DIV
10V/DIV
20A/DIV
V
V
V
I
V
V
3730 G19
LOAD
SW1
SW2
SW3
OUT
OUT
1000
0
–30
–60
–90
–120
–150
Transient Load Current Response: 0Amp
to 50Amp (Circuit of Figure 14)
Burst Mode at 1Amp, Light Load
Current (Circuit of Figure 14)
V
V
V
FREQUENCY = 250kHz
V
V
V
FREQUENCY = 250kHz
IN
OUT
FCB
IN
OUT
FCB
= 12V
= 12V
= V
= 1.5V
= OPEN
= 1.5V
CC
20µs/DIV
4µs/DIV
3730 G23
3730 G21
LTC3730
3730fa
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