LTM4609 LINER [Linear Technology], LTM4609 Datasheet - Page 21

• Manufacturer Part Number: LTM4609
• Description: 36VIN, 34VOUT High Effi ciency Buck-Boost DC/DC ?Module
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIONS
Figure 17. Boost Mode Operation with 5V to 12V Input with Low Switching Noise (Optional)
5V TO 36V
5V TO 12V
V
IN
V
Figure 18. Wide Input Mode with 5V to 36V Input, 12V at 4A Output
1.5k
IN
R1
R3
1.5k
1k
R1
R3
1k
L1: TOKO FDA1254
10μF
50V
×2
4.7μF
35V
ON/OFF
0.1μF
ON/OFF
C3
0.1μF
C3
PGOOD
RUN
COMP
INTV
PLLFLTR
EXTV
STBYMD
SS
SGND
PGOOD
RUN
COMP
INTV
PLLFLTR
EXTV
STBYMD
SS
SGND
CC
CC
CC
CC
V
LTM4609
IN
V
LTM4609
PGND
IN
PGND
PLLIN
PLLIN
SENSE
SENSE
R
SENSE
SENSE
R
SENSE
V
SW1
SW2
SENSE
FCB
OUT
V
V
SW1
SW2
FCB
OUT
FB
V
+
–
FB
+
–
CLOCK SYNC
CLOCK SYNC
3.3μH
3.3μH
L1
R
7.15k
L1
FB
R
7.15k
FB
R2
8mΩ
R2
8mΩ
4609 TA03
SWITCHING NOISE
4609 TA04
2Ω
2Ω
OPTIONAL
FOR LOW
2200pF
2200pF
22μF
25V
×4
22μF
25V
×2
+
+
LTM4609
330μF
25V
330μF
25V
V
12V
4A
OUT
V
12V
4A
OUT
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