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L5972 Datasheet(PDF) 8 Page - STMicroelectronics |
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L5972 Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 10 page L5972D 8/10 APPLICATION IDEAS Figure 15. Positive Buck-Boost regulator Figure 16. Buck-Boost regulator Figure 17. 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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