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STK740-490 数据表(PDF) 8 Page - Sanyo Semicon Device

部件名 STK740-490
功能描述  3.3V/5A Single Output Separate Excitation Chopper Regulator
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制造商  SANYO [Sanyo Semicon Device]
网页  https://www.sanyo-av.com/us/
标志 SANYO - Sanyo Semicon Device

STK740-490 数据表(HTML) 8 Page - Sanyo Semicon Device

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STK740-441
No.6106–8/10
Eveluation Board
The evaluation board is provided to evaluate this hybrid IC
♦ Equivalent Circuit
1
2
3
4
5
6
7
8
9
10
11
12
VIN
GND
Vs
GND
L1
C2
C1
FB1
IC1
Vo
ON/O FF
R2
♦ Parts Table
Part name
Requirements
Number
Manufacturer
Notes
C1
Electrolytic capacitor
220
µF/10V
2200
µF/6.3V
1
Sanyo Electronic component co., ltd.
OS capacitor
C2
Electrolytic capacitor
1
Sanyo Electronic component co., ltd.
Low impedance (CG)
R2
Resistor
100
1
R3
Jumper
1
R6
Jumper
1
Use a fuse resistor (20 to 30
Ω) when needed
FB1
Ferrite-bead core
BL02RN1-R62
1
Murata manufacturing co., ltd.
L1
Choke coil
HK-10S100-4500
1
Toho zinc co., ltd.
45
µH, 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 (+).


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