FAN5235 Fairchild Semiconductor, FAN5235 Datasheet - Page 11

• Manufacturer Part Number: FAN5235
• Description: System Electronics Regulator for Mobile PCs
• Manufacturer: Fairchild Semiconductor

FAN5235
Notebook Application Circuit
Table 1. FAN5235 Application Bill of Materials
11
SDN3.3
Reference
C1
C2-6
C7-8
C12-13
C10-11
C9
R1
R2, R3
R4, R5
R6
D1-3
D4-5
L1-2
L3
Q1-4
Q5
U1
3.3V@50mA
5V@50mA
3.3V@5A
C3
PGOOD
Manufacturer, Part #
SANYO
25SP33M
Any
KEMET
T510X337(1)010AS
AVX*020R1800TPSA475
AVX
TPSV68*025R0095
Any
Any
Any
Any
Fairchild SS22
Fairchild MBR0520L
Any
Any
Fairchild FDS6690A
Fairchild NDC631N
Fairchild FAN5235
C12, C13
C11
C10
+
L1
D5
C5
D1
R1
Q2
+5V
Q1
Figure 8. FAN5235 Notebook Application Circuit
R2
C2
1
2
3
4
5
6
7
8
9
10
11
12
Quantity
FAN5235
1
5
2
2
2
1
1
2
1
1
3
2
2
1
4
1
1
5.4-24V
U1
C1
33µF, 25V
100nF, 50V
330µF, 10V
4.7µF, 20V
68µF, 25V,
ESR=95m
10K , 1%
1K , 1%
380K , 100K
10
2A, 40V Schottky
500mA, 20V Schottky
6.4µH, 5A
5.6µH, 2A
30V N-channel MOSFET
20V N-channel MOSFET
SER Controller
Description
24
23
22
21
20
19
18
17
16
15
14
13
SDWN
R3
SDN5
Q3
Q4
R6
Pin 6
C4
C6
D4
D2
Q5
Comments
OSCON,
I
19V adapter.
Ceramic
Tantalum,
ESR=35m
Tantalum, ESR=1.8
Tantalum,
I
1%
R < 25m
R = 17m
R = 60m
L2
rms
rms
D3
L3
C9
= 3A,
= 0.5A
REV. 1.3.3 1/3/02
C7 C8
R4
R5
+
12V@120mA
5V@5A