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EVAL5972D Datenblatt(PDF) 10 Page - STMicroelectronics

Teilenummer EVAL5972D
Bauteilbeschribung  2A switch step down switching regulator
PDF  15 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

EVAL5972D Datenblatt(HTML) 10 Page - STMicroelectronics

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Application ideas
L5972D
10/15
6
Application ideas
Figure 17.
Positive buck-boost regulator
Figure 18.
Buck-boost regulator
Figure 19.
Dual output voltage with auxiliary winding
VIN=5V
C1
10uF
10V
Ceramic
D1
STPS2L25U
Vcc
COMP
GND
OUT
FB
L5972D
1
3
7
5
6
4
8
2
R3
4.7k
L1
33uH
24k
2.7k
C3
22nF
C4
100uF
16V
VOUT=12V/0.45A
C2
220pF
D2
STPS2L25U
M1
STN4NE03L
VIN=5V
C1
10uF
10V
Ceramic
D1
STPS2L25U
Vcc
COMP
GND
OUT
FB
L5972D
1
3
7
5
6
4
8
2
R3
4.7k
L1
33uH
2.7k
24k
C4
22nF
C5
100uF
16V
VOUT=-12V/0.45A
C3
220pF
C2
10uF
25V
Ceramic
VIN=12V
C1
10uF
25V
D1
STPS2L25U
Vcc
COMP
GND
OUT
FB
L5972D
1
3
7
5
6
4
8
2
R3
4.7k
C3
22nF
C4
100uF
10V
VOUT=3.3V
C2
220pF
VOUT1=5V
50mA
D2
STPS2L25U
C5
47uF
10V
N1
N2
n=N1/N2=2



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