SI-8000S Series
sExternal
Dimensions (TO220F-5)
φ
3.2
±0.2
0.5
(Unit : mm)
4.2
±0.2
2.8
±0.2
10.0
±0.2
c
a
16.9
±0.3
a. Part Number
b. Lot Number
c. Logo Mark
(17.9)
4.0
±0.2
7.9
±0.2
b
2.6
±0.1
(2.0)
0.95
±0.15
+0.2
0.85
–0.1
0.45
–0.1
P1.7
±0.7
×4=6.8
±0.7
+0.2
Pin Assignment
q
V
IN
w
SW
OUT
e
GND
r
V
OS
t
S.S
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 2.3g
(4.6)
3.9
±0.7
(4.3)
8.2
±0.7
1 2 3 4 5
Forming No. 1101
sBlock
Diagram
V
IN
1
Reg.
OSC
Reset
OCP
2 SW
OUT
Drive
Comp.
TSD
4 V
OS
Amp.
V
REF
5 S.S.
3 GND
sTypical
Connection Diagram
V
IN
1
2
V
IN
SW
OUT
L
1
V
O
(8.0)
5.0
±0.6
+
C
1
SI-8000S
V
OS
S.S
5
GND
3
4
D
1
+
C
2
C
1,2
: 1000
µ
F
L
1
: 150
µ
H
D
1
: RK46(Sanken)
GND
GND
sT
a
-P
D
Characteristics
20
Infinite heatsink
P
D
=V
O
•I
O
With Silicone Grease
Heatsink: Aluminum
100
–1
ηχ
–V
F
•I
O
1–
V
O
V
IN
Power Dissipation P
D
(W)
15
200×200×2mm
(2.3°C/W)
The efficiency depends on the input voltage and the output current.
Therefore, obtain the value from the efficiency graph and substi-
tute the percentage in the formula above.
V
O
V
IN
I
O
ηx
V
F
:
:
:
:
:
Output voltage
Input voltage
Output current
Efficiency (%)
Diode D
1
forward voltage
0.5V(RK46)
100×100×2mm
10 (5.2°C/W)
75×75×2mm
(7.6°C/W)
5
Without heatsink
0
–25
0
25
50
75
100
125
Operating Ambient Temperature T
a
(°C)
Thermal design for D
1
must be considered separately.
ICs
69
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