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L5973D Datasheet(PDF) 8 Page - STMicroelectronics

Part # L5973D
Description  2.5A SWITCH STEP DOWN SWITCHING REGULATOR
PDF  10 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5973D Datasheet(HTML) 8 Page - STMicroelectronics

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APPLICATION IDEAS
Figure 14. Positive Buck-Boost regulator
Figure 15. Buck-Boost regulator
Figure 16. Dual output voltage with auxiliary winding
VIN=5V
C1
10uF
10V
Ceramic
D1
STPS2L25U
Vcc
COMP
GND
OUT
FB
INH
SYNC
VREF
L5973D
1
3
7
5
6
4
8
2
R3
4.7k
L1
15uH
24k
2.7k
C3
22nF
3.3V
C4
100uF
16V
VOUT=12V/0.6A
C2
220pF
D2
STPS2L25U
M1
STN4NE03L
VIN=5V
C1
10uF
10V
Ceramic
D1
STPS2L25U
Vcc
COMP
GND
OUT
FB
INH
SYNC VREF
L5973D
1
3
7
5
6
4
8
2
R3
4.7k
L1
15uH
2.7k
24k
C4
22nF
3.3V
C5
100uF
16V
VOUT=-12V/0.6A
C3
220pF
C2
10uF
25V
Ceramic
VIN=12V
C1
10uF
25V
Ceramic
D1
STPS25L25U
VCC
COMP
GND
OUT
FB
INH
SYNC VREF
L5973D
1
3
7
5
6
4
8
2
R3
4.7k
C3
22nF
3.3V
VOUT=3.3V
0.5A
C2
220pF
VOUT1=5V
50mA
C5
47uF
10V
Lp=22uH
D2
1N4148
C4
100uF
10V
N1/N2=2



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