Datasheet

LTM4613
9
4613f
BLOCK DIAGRAM
DECOUPLING REQUIREMENTS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
C
IN
External Input Capacitor Requirement
(V
IN
= 24V to 36V, V
OUT
= 12V)
I
OUT
= 8A 30 100 µF
C
OUT
External Output Capacitor Requirement
(V
IN
= 24V to 36V, V
OUT
= 12V)
I
OUT
= 8A 100 220 µF
Specifications are at T
A
= 25°C. Use Figure 1 configuration.
+
INTERNAL
COMP
SGND
COMP
PGOOD
RUN
> 1.9V = ON
< 1V = OFF
MAX = 5V
MARG1
MARG0
MPGM
FCB
PLLIN
C
SS
INTV
CC
DRV
CC
TRACK/SS
V
FB
f
SET
50k
133k
R
FB
5.23k
50k
100k
V
OUT
5.1V
ZENER
POWER CONTROL
M1
V
IN
24V TO 36V
V
D
V
OUT
12V
AT 8A
M2
50k
10µF
1µF
C
IN
+
C
OUT
PGND
4613 F01
10k
4.7µF
2.2µH
INPUT
FILTER
NOISE
CANCEL-
LATION
10µF
50V
× 3
Figure 1. Simplified Block Diagram