LTM4612 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTM4612 Datasheet PDF : 24 Pages
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LTM4612
APPLICATIONS INFORMATION
VIN
22V TO 36V
VOUT
CLOCK SYNC
R5 R4
2M 100k
CIN
10μF
50V CERAMIC
R3
100k
C1
10μF
50V
VD
VIN
PGOOD
PLLIN
VOUT
RUN LTM4612
ON/OFF COMP
VFB
INTVCC
DRVCC
fSET
TRACK/SS
FCB
MARG0
MARG1
C4
0.01μF
MPGM
SGND PGND
MARGIN
CONTROL
R1
392k
5% MARGIN
C3
22pF
RFB
5.23k
4612 F18
COUT1 +
22μF
16V
COUT2
220μF
16V
VOUT
12V
5A
REFER TO TABLE 2
Figure 18. Typical 22V to 36VIN, 12V at 5A Design
VIN
5V TO 36V
EXTERNAL 5V SUPPLY
IMPROVES EFFICIENCY—
ESPECIALLY FOR HIGH
INPUT VOLTAGES
VOUT
CLOCK SYNC
C1
10μF
R4 R3
100k 100k
50V
VD
VIN
PLLIN
PGOOD
VOUT
CIN
10μF
50V CERAMIC
RUN
ON/OFF COMP LTM4612 VFB
INTVCC
FCB
C3
22pF
RFB
22.1k
RfSET
191k
1%
C4
0.01μF
DRVCC
fSET
TRACK/SS
SGND
MARG0
MARG1
MPGM
PGND
MARGIN
CONTROL
R1
392k
5% MARGIN
COUT1
22μF
+
6.3V
COUT2
220μF
6.3V
VOUT
3.3V
5A
REFER TO TABLE 2
4612 F19
Figure 19. Typical 5V to 36VIN, 3.3V at 5A Design with 400kHz Frequency
4612f
18
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