Linear Technology EN55022B, Руководство пользователя

Страница: 24 / 28

LTM4612
24
4612fc
For more information www.linear.com/LTM4612
DRV
CC
f
SET
TRACK/SS
PGOOD
RUN
COMP
INTV
CC
FCB
MARG0
MARG1
MPGM
V
OUT
V
FB
V
D
V
IN
5V
R2
100k
C7
0.15µF
C6
22pF C3
22µF
6.3V
4612 F23
C4
220µF
6.3V
5V AT 5A
C11
0.1µF
C5
100µF
50V
C2
10µF
50V
C8
10µF
50V
V
IN
7V TO 36V
LTC6908-1
2-PHASE
OSCILLATOR
PLLIN
CLOCK SYNC
0° PHASE
CLOCK SYNC
180° PHASE
SGND PGND
PGOOD
RUN
COMP
INTV
CC
DRV
CC
f
SET
TRACK/SS
V
IN
V
D
PLLIN
SGND
5V TRACK
PGND
MARGIN
CONTROL
R4
100k
R
fSET1
150k
R
FB1
13.7k
R1
392k
R8
100k
R9
22.1k
R
fSET2
100k
R3
100k
R7
100k
3.3V
R5
200k
V
+
GND
SET
OUT1
OUT2
MOD
+
V
OUT
V
FB
FCB
MARG0
MARG1
MPGM
C1
22pF C9
22µF
6.3V
C10
220µF
6.3V
3.3V AT 5A
MARGIN
CONTROL
R
FB2
22.1k
R6
392k
+
+
LTM4612
LTM4612
5% MARGIN
C1
10µF
50V
C11
10µF
50V
Figure 23. 2-Phase, 5V and 3.3V at 5A Design with 500kHz Frequency
APPLICATIONS INFORMATION