SI-3033LSA View Datasheet(PDF) - Sanken Electric co.,ltd.
Part Name
Description
Manufacturer
SI-3033LSA Datasheet PDF : 2 Pages
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SI-3000LSA Series
■External Dimensions (SOP8)
5.1±0.4
1.27
0.4±0.1
0.15+–00..105
8
7
6
5
1
2
3
4
1.27
0.995max.
0.4±0.1
0.10
0.12 M
■Block Diagram
VIN 1
NC 2
VIN 3
VC 4
TSD
8 VO
7 VO
+
–
6 GND
5 GND
Pin Assignment
q VIN
w NC (Leave open)
e VIN
r VC
t GND
y GND
u VO
i VO
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 0.1g
(Unit : mm)
■Typical Connection Diagram
VIN
1
VO
8
+ CIN
2
7
3
6
+
4
5
VIN
GND
CO
VC
CO: Output capacitor (22 µF or larger)
CIN: Input capacitor (10 µF)
This capacitor is required in the case of an inductive input line or long
wiring.
Tantalum capacitors are recommended for CIN and CO, particularly at
low temperatures.
* Leave pin 2 open.
■Reference Data
PCB Copper Laminate Area vs. Junction to
Ambient Air Thermal Resistance
150
140
PCB (glass-epoxy, 40×40mm)
160mm (40×40) mm
130
120
110
100
90
80
70
100
1000
Copper Laminate Area (mm2)
5000
Allowable Output Current
(vs. VIN-VOUT Voltage Difference)
VIN-IO max
1.2
Tj = 120°C (20% derating of 150°C)
1.0
0.8
θ j-a=100°C/W
0.6
0.4
Ta=25°C
The inner frame stage, on which the PTr is mounted,
is directly connected to the VOUT pin.
Therefore, enlarging the copper laminate area
around the VOUT pin is really effective for a heat
radiation.
0.2
Ta=85°C
0
1
2
3
4
VIN-VOUT Voltage Difference (V)
ICs 71
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