STK740-450 View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
STK740-450 Datasheet PDF : 10 Pages
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STK740-441
Eveluation Board
The evaluation board is provided to evaluate this hybrid IC
♦ Equivalent Circuit
12 11 10 9 8 7 6 5 4 3 2 1 IC1
ON/O FF
Vs
R2
VIN
Vo
L1
C1
FB1
C2
GND
GND
♦ Parts Table
Part name
Requirements Number
Manufacturer
Notes
C1 Electrolytic capacitor 220µF/10V
C2 Electrolytic capacitor 2200µF/6.3V
R2 Resistor
100Ω
R3 Jumper
R6 Jumper
FB1 Ferrite-bead core BL02RN1-R62
L1 Choke coil
HK-10S100-4500
1 Sanyo Electronic component co., ltd. OS capacitor
1 Sanyo Electronic component co., ltd. Low impedance (CG)
1
1
1 Use a fuse resistor (20 to 30Ω) when needed
1 Murata manufacturing co., ltd.
1 Toho zinc co., ltd.
45µH, 5A
♦ Notes on pattern designing
1 Place VCC pin (pin 6) and VIN pins (pin 11 and 12) lines separately and use an input capacitor (+) for connection.
2 Place GND pin (pin 5) and A pin (pins 7 and 8) lines separately.
3 Connect A pin (pins 7 and 8) with the input capacitor (–) through a Ferrite-bead core.
4 Connect GND pin (pin 5) with the input capacitor (–) or the output capacitor (–). However, connect with the
output capacitor (–) unless otherwise specified.
5 Shorten the length of the line between the input capacitor (–) and the output capacitor (–) as well as possible.
6 Connect VS pin (pin 2) with the output capacitor (+).
No.6106–8/10
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