LTM4600HV
APPLICATIO S I FOR ATIO
12V to 5V at 8A
V IN to V OUT Stepdown Ratio for
12V to 5V and 5V to 3.3V
9V TO 16V
R1
15k
5.0
3.3V: f ADJ = 30.1k
+
C3
10 μ F
25V
C1
10 μ F
25V
EXTV CC
FCB
V IN f ADJ
LTM4600HV
V OUT
V OSET
C5
100pF
5V AT 8A
R2
13.7k
EFFICIENCY = 94%
C2 C4
22 μ F 330 μ F
6.3V
4.5 5V: f ADJ = 15k
4.0
3.5
3.0
2.5
RUN/SOFT-START
RUN/SS
COMP
SGND
SV IN
PGOOD
PGND
4600 F23
OPEN DRAIN
1%
2.0
1.5
1.0
0.5
3.3V AT 8A
5V AT 8A
12V TO 5V AT 8A WITH f ADJ = 15k
LTM4600HV MINIMUM ON-TIME = 100ns
C1, C3: TDK C3216X5R1E106MT
C2: TAIYO YUDEN, JMK316BJ226ML
0
1
3
5
7
9 11
13
15
17
LTM4600HV MINIMUM OFF-TIME = 400ns
C4: SANYO POSCAP, 6TPE330MIL
V IN (V)
4600 F24
TYPICAL APPLICATIO
V IN
5V TO 24V
GND
+
C IN (BULK)
150 μ F
C IN (CER)
10 μ F
2x
EXTV CC
V IN
(MULTIPLE PINS)
V OUT
V OUT
V OUT
C3
100pF
SV IN
f ADJ
V OSET
COMP
(MULTIPLE PINS)
LTM4600HV
C OUT1 +
22 μ F
6.3V
× 3
REFER TO
C OUT2
470 μ F
REFER TO
TABLE 2
FCB
TABLE 2
R1
66.5k
REFER TO
C4
OPT
PGOOD
SGND
PGND
(MULTIPLE PINS)
RUN/SS
0.6V TO 5V
REFER TO STEP DOWN
RATIO GRAPH
GND
TABLE 1
4600HV F21
Figure 21. Typical Application, 5V to 24V Input, 0.6V to 5V Output, 10A Max
4600hvfc
19
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