LTC3786 LINER [Linear Technology], LTC3786 Datasheet - Page 39

• Manufacturer Part Number: LTC3786
• Description: Multi-Phase Current Mode Step-Up DC/DC Controller
• Manufacturer: LINER [Linear Technology]

Typical applicaTions
50V/DIV
5V/DIV
5A/DIV
5A/DIV
V
RUN
OUT
I
I
L1
L2
4.7nF
V
V
R
IN
OUT
L
= 100Ω
100pF
= 24V
45.3k
30.1k
= 48V
V
OUT
0.1µF
7.87k
301k
Start-Up
1ms/DIV
A 24V Input, 48V/6A Output 2-Phase Boost Converter Application Circuit
D
SLOPE
BLANK
PHASEMODE
FREQ
SS
ITH
FB
SGND
CLKOUT
SYNC
PLLFLTR
MAX
LTC3862-2
SENSE1
SENSE1
SENSE2
SENSE2
INTV
GATE1
GATE2
100
PGND
96
92
88
84
RUN
38622 TA04b
3V8
V
100
CC
IN
+
–
–
+
V
V
IN
OUT
= 24V
= 48V
EFFICIENCY
24.9k
4.7µF
1nF
1µF
10nF
10nF
LOAD CURRENT (mA)
Efficiency
150k
1000
8.5V TO 36V
POWER LOSS
V
IN
AC-COUPLED
22µF 25V
10
5A/DIV
5A/DIV
5A/DIV
1V/DIV
V
PA2050-193
PA2050-193
I
38622 TA04d
10
OUT
OUT
I
I
L1
L2
19µH
19µH
22µF 25V
22µF 25V
10000
L2
L1
V
V
∆I
IN
OUT
OUT
10000
1000
= 24V
= 48V
= 1A TO 5A
0.005
1W
Q1
HAT2279H
0.005
1W
Q2
HAT2279H
30BQ060
D2
30BQ060
Load Step
100µF
100µF
500µs/DIV
D1
35V
35V
+
+
10µF 50V
10µF 50V
10µF 50V
10µF 50V
3862 TA04a
LTC3862-2
38622 TA04c
V
48V
6A (MAX)
OUT
39
38622f