Application circuit – Rainbow Electronics MAX5090C User Manual
Page 14
MAX5090A/B/C
2A, 76V, High-Efficiency MAXPower Step-Down
DC-DC Converters
14
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Table 2. Typical External Components Selection (Circuit of Figure 4)
V
IN
(V)
V
OUT
(V)
I
OUT
(A)
EXTERNAL COMPONENTS
6.5 to 76
3.3
2
MAX5090AATE
C
IN
= 2 x 68µF/100V EEVFK2A680Q, Panasonic
C
BYPASS
= 0.47µF/100V, GRM21BR72A474KA, Murata
C
OUT
= 220µF/6.3V 6SVP220MX, Sanyo
C
BST
= 0.22µF/16V, GRM188R71C224K, Murata
R1 = 0
Ω
R2 = Open
R
IN
= 10
Ω, ±1% (0603)
D1 = PDS5100H, Diodes Inc.
L1 = 47µH, DO5022P-473
7.5 to 76
5
2
MAX5090BATE
C
IN
= 2 x 68µF/100V EEVFK2A680Q, Panasonic
C
BYPASS
= 0.47µF/100V, GRM21BR72A474KA, Murata
C
OUT
= 100µF/6.3V 6SVP100M, Sanyo
C
BST
= 0.22µF/16V, GRM188R71C224K, Murata
R1 = 0
Ω
R2 = Open
R
IN
= 10
Ω, ±1% (0603)
D1 = PDS5100H, Diodes Inc.
L1 = 47µH, DO5022P-473
Application Circuit
PGND
BST
LX
V
IN
V
IN
SGND
FB
V
OUT
R1
VD
L1
C
BST
3.3
µF
R2
C
OUT
SS
SYNC
D1
DRAIN
C
SS
C
IN
C
BYPASS
R
IN
MAX5090B
ON/OFF
Figure 4. Fixed Output Voltage