M5291P 데이터 시트보기 (PDF) - Renesas Electronics
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M5291P Datasheet PDF : 10 Pages
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M5291P/FP
Application Circuits
1. Step-up Circuit
VIN = 5 V
VOUT = 12 V
IO = 20 mA
f = 50 kHz
1
2
D
3
CT
820 pF
4
VOUT
12 V/20 mA
+
COUT
100 µF
2. Step-up Circuit with Transistor
VIN = 5 V
VOUT = 12 V
IO = 1 A
f = 50 kHz
1
NPN
Tr
2
R4
D
680 Ω
3
CT
820 pF
4
VOUT
12 V/1 A
+
COUT
100 µF
L
510 µH
QS
R
Oscillator
1.17 V
Comparator
+
−
8
R3
240 Ω
7
RSC
3Ω
6
+
CIN
VIN
5V
100 µF
5
R1
9.1 kΩ
R2
1 kΩ
L
10 µH
QS
R
Oscillator
1.17 V
Comparator
+
−
8
R3
1 kΩ
7
RSC
60 mΩ
6
+
VIN
5V
CIN
100 µF
5
R1
9.1 kΩ
R2
1 kΩ
REJ03D0841-0300 Rev.3.00 Jun 15, 2007
Page 4 of 9
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