LTM4609 LINER [Linear Technology], LTM4609 Datasheet - Page 8

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

SIMPLIFIED BLOCK DIAGRAM
LTM4609
DECOUPLING REQUIREMENTS
SYMBOL
C
C
8
IN
OUT
SHOWN IN FIGURE 15
TO PGND PLANE AS
ON/OFF
SS
0.1μF
PARAMETER
External Input Capacitor Requirement
(V
External Output Capacitor Requirement
(V
IN
IN
= 4.5V to 36V, V
= 4.5V to 36V, V
EXTV
INTV
PGOOD
RUN
STBYMD
COMP
SS
PLLIN
PLLFLTR
FCB
SGND
CC
CC
OUT
OUT
1000pF
0.1μF
100k
= 12V)
= 12V)
FILTER
COMP
INT
INT
Figure 1. Simplifi ed LTM4609 Block Diagram
CONDITIONS
I
I
CONTROLLER
OUT
OUT
T
= 4A
= 4A
A
= 25°C. Use Figure 1 confi guration.
M1
M2
M3
M4
FILTER
INT
CO1
100k
C1
SENSE
SENSE
MIN
R
200
10
PGND
SENSE
V
SW2
SW1
OUT
4609 BD
V
V
FB
IN
+
–
C
OUT
7.15k
C
TYP
300
R
IN
FB
R
L
SENSE
4.5V TO 36V
12V
4A
MAX
UNITS
4609fa
μF
μF