MAX1549 Datasheet, PDF (5/11 Pages) Maxim Integrated Products – MAX1549 Evaluation Kit

MAX1549 Evaluation Kit
VCC
VREF
R10
100kΩ
1%
R13
150kΩ
1%
R14
66.5kΩ
1%
R12
487kΩ
1%
C13
470pF
R11
301kΩ
1%
VCC
VDD
R9
10Ω
VREF
C14
0.22µF
C15
1µF
R15
VREF _100kΩ
1%
R17
VREF _100kΩ
1%
R16
100kΩ
1%
R18
100kΩ
1%
C16
470pF
C17
100pF
C18
100pF
37
OD1
38
OD2
39 _OD3
40 _REFIN
1 _GND
2 _N.C.
3 _REF
4
VCC
5
CC1
6
ILIM1
7
ILIM2
VCC
G0
JU4
R27
100kΩ
VCC
JU5
8 _G0
G1
VCC
VREF
R25
R24 OPEN
OPEN
R28
100kΩ
9 _G1
10 _FBLANK
R26
OPEN
VCC
400kHz
VREF
JU3 ² OPEN
200kHz 3 1
4
300kΩ 11
FSEL
VCC
100kHz
JU1 1
ON1
2 12 _ON1
VCC
3
JU2 1
2
13
ON2
ON2
3
U1
MAX1549
VOUT1
R7
100kΩ
34
OUT1
33
PGOOD1
35
CSL1
CSH1 ³⁶
R22
SHORT
(PC TRACE)
BST1 ²⁹
DH1 ³²
N.C. ³¹
LX1 ³⁰
PGOOD1
C22
OPEN
R6
SHORT
(PC TRACE)
R5
C10 _SHORT
OPEN _{(PC TRACE)}
C23
OPEN
BST1 5
C9
6
8
7
0.1µF N1
4
3
12
5
8
67
C4
10µF
25V
D1
DL1 ²⁷
N2
4
VCC
3
12
VIN
VIN
20V MAX
C6
OPEN GND
L1
1.5µH
R29
OPEN
C20
OPEN
R1
0.012Ω
1%
C1
OPEN
JU6 1
28
SKIP
SKIP
2
VDD
VCC
3
25
N.C.
VDD ²⁶
PGND ²³
BST2 ²²
N.C. ²⁰
DH2 ¹⁹
LX2 ²¹
C12
2.2µF
VBIAS D3
+5V
R23 1
SHORT
(PC TRACE)
C8
0.1µF
3
2
5
6
8
7
N3
4
3
12
5
8
67
BST1
VIN
C5
C7
10µF
25V
OPEN
D2
DL2 ²⁴
CSH2 ¹⁴
CSL2 ¹⁵
VCC
C25
OPEN
C11
OPEN
C24
OPEN
4
1
N4
3
2
R4
SHORT
(PC TRACE)
R3
SHORT
(PC TRACE)
VCC
PG00D2 ¹⁸
FB2 ¹⁶
OUT2 ¹⁷
R8
100kΩ
VOUT2
PG00D2
R19
OPEN
R21
0Ω
VOUT2
R20
OPEN
C26
OPEN
R32
OPEN
C21
OPEN
L2
4.7µH
VOUT1
C2
470µF
2.5V
VOUT1
0.7V TO 1.5V AT 6A
C28
10µF
6.3V ^GND
R2
0.015Ω
1%
VOUT2
C3
220µF
4V
C19
OPEN
VOUT2
C27
10µF
6.3V
Figure 1. MAX1549 EV Kit Schematic
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