IP33063 查看數據表（PDF） - Semelab - > TT Electronics plc
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IP33063 Datasheet PDF : 5 Pages
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IP35063
IP33063
IP34063
APPLICATIONS INFORMATION
Step–Down Converter
Step–Up Converter
L 170 µH
8
7
R SC
0.33 Ω
V IN
6
25V
100 µF
5
1
SQ
Q2
R
Q1
170
Ω
Ipk
OSCILLATOR
CT
2
1N5822
VCC
COMPARATOR
1.25 V
REFERENCE
REGULATOR
3
CT
470pF
4
L
220 µH
8
1 8 0Ω
7
R SC
0.22 Ω
V IN
6
12V
100 µF
5
1
SQ
Q2
R
Q1
170
Ω
2
Ip k
OSCILLATOR
CT
1N5819
VCC
COMPARATOR
1.25 V
REFERENCE
REGULATOR
3
CT
1500pF
4
R2
R1
3.3K
1.2K
V OUT
5.0V
500mA
CO
470 µF
R2
R1
47K
2.2K
V OUT
28V
175 mA
CO
1500 µF
External Current Boost Connections for IC > 1.5A
Step–Down, External NPN Switch
Step–Up, External NPN Switch
8
7
R SC
V IN
6
5
1
SQ
Q2
R
Q1
170
Ω
2
OSCILLATOR
3
COMPARATOR
1.25 V
REFERENCE
REGULATOR
4
V OUT
Step–Down, External PNP Saturated Switch
R SC
V IN
8
1
SQ
Q2
R
Q1
170
7
Ω
2
OSCILLATOR
6
3
COMPARATOR
1.25 V
REFERENCE
REGULATOR
5
4
V OUT
Step–Up, External NPN Saturated Switch
RS C
VIN
8
1
SQ
Q2
R
Q1
170
7
Ω
2
O S CILLA TO R
6
3
COMPARATOR
1.2 5 V
REFERENCE
REGULATOR
5
4
VO U T
RSC
V IN
8
1
SQ
Q2
R
Q1
170
7
Ω
2
O SC ILL AT O R
6
3
COMPARATOR
1 .25 V
REFERENCE
REGULATO R
5
4
VOUT
R – 0 FOR
CONSTANT VIN
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Prelim. 2/95
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