LTM4607
SIMPLIFIED BLOCK DIAGRAM
ON/OFF
SS
0.1μF
EXTVCC
INTVCC
PGOOD
RUN
100k
STBYMD
COMP
0.1μF
INT
COMP
SS
PLLIN
PLLFLTR
CONTROLLER
VIN
4.5V TO 36V
C1
CIN
M1
SW2
M2
L
SW1
VOUT
12V
5A
CO1
M3
COUT
100k
VFB
RFB
7.15k
M4
RSENSE
SENSE+
INT
FILTER
SENSE–
RSENSE
TO PGND PLANE AS
SHOWN IN FIGURE 15
INT
FILTER
FCB
SGND 1000pF
Figure 1. Simplified LTM4607 Block Diagram
PGND
4607 BD
DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
CIN
External Input Capacitor Requirement IOUT = 5A
(VIN = 4.5V to 36V, VOUT = 12V)
COUT
External Output Capacitor Requirement IOUT = 5A
(VIN = 4.5V to 36V, VOUT = 12V)
10
μF
200 300
μF
4607f
8