Fujitsu MB39C026 Handmatig - Pagina 6
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Fujitsu ASSP Product
Power Management
6. Circuit Diagram
6. Circuit Diagram
VIN
PGND
R4
R3
POR
1M
1M
JP1
JP2
: No Mount
7. Circuit Parts List
7. Circuit Parts List
MB39C022-EVB03 Rev1.0
Count
Designator
1
U1
2
C1, C2
1
C3
2
C4, C5
1
L1
3
R1, R2, R3
1
R5-1
2
R5-2, R7
1
R6
VIN, VO1, VO2,
9
POR, PGND, PGND1,
AGND, EN1, EN2
No Mount JP1, JP2
No Mount R4
No Mount C6
Short
JP3, JP4
TDK: TDK Corporation
MB39C026 Evaluation Board
8
VIN1
C1
4.7uF
JP3
PGND
Short
2
VIN2
C4
1uF
AGND
4
POR
EN1
7
EN1
EN2
R1
1M
AGND
1
EN2
R2
MB39C026
1M
AGND
Description
Power IC
Capacitor 4.7uF (10V)
Capacitor 22pF (50V)
Capacitor 1uF (16V)
Inductor 2.2uH RDC=76m
Resistor 1M (1%)
Resistor 300k (1%) for 1.2V output
Resistor 499k (1%) for 1.8V output
Resistor 0R
Resistor 100k (1%)
Connecting Pins
Header 1X2
1M
Capacitor 4.7uF (10V)
Jumper (pattern short)
GND1 10
LX
9
L1
2.2uH
FB
6
VOUT2
3
GND2
5
(SON-10)
Part Number
MB39C026
C1608JB1A475K
C1608CH1H220J
C1608JB1C105K
VLF4012AT-2R2M1R5
WT-2-1
C6
C2
4.7uF
4.7uF
JP4
Short
R5-1
300k
or 499k
R5-2
VO2
0k
R6
C5
100k
1uF
AGND
AGND
AGND
For VO1=1.2V: R5-1=300k
For VO1=1.8V: R5-1=499k
Manufacturer
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6/14
PGND1
PGND
VO1
R7
0R
C3
22pF
Fujitsu
TDK
TDK
TDK
TDK
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MacEight
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