M5291P Datasheet, PDF (5/10 Pages) Mitsubishi Electric Semiconductor – DC-DC CONVERTER

M5291P/FP
3. Step-down Circuit
V_IN = 24 V
V_OUT = 5 V
I_O = 0.1 A
f = 50 kHz
1
2
D
L
440 µH
C_T
3
330 pF
4
V_OUT
5 V/0.1 A
+
C_OUT
100 µF
QS
R
Oscillator
1.17 V
Comparator
+
−
8
R₃
1.2 kΩ
7
R_SC
2Ω
6
+
V_IN
24 V
C_IN
100 µF
5
R₁
3.6 kΩ
R₂
1.2 kΩ
4. Step-down Circuit with Transistor
V_IN = 24 V
V_OUT = 5 V
I_O = 1 A
f = 50 kHz
R₃
100 Ω
PNP
Tr
1
R₄
300 Ω
D
2
L
47 µH
3
C_T
330 pF
4
V_OUT
5 V/1 A
+
C_OUT
100 µF
QS
R
Oscillator
1.17 V
Comparator
+
−
8
7
R_SC
0.16 Ω
6
+
V_IN
24 V
C_IN
5
R₁
3.6 kΩ
R₂
1.2 kΩ
REJ03D0841-0300 Rev.3.00 Jun 15, 2007
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