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L6730B Fiches technique(PDF) 19 Page - STMicroelectronics

No de pièce L6730B
Description  Adjustable step-down controller with synchronous rectification
PDF  52 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6730B Fiches technique(HTML) 19 Page - STMicroelectronics

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L6730 - L6730B
Device description
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During normal operation, if any under voltage is detected on one of the two supplies (VCC, VIN),
the SS pin is internally shorted to GND by an internal switch so the SS capacitor is rapidly
discharged. Two different turn-on UVLO thresholds can be set: 4.2V for 5V BUS and 8.6V for
12V BUS.
Figure 11. Sink mode disabled: Inductor current during and after soft-start (L6730).
Vout
Vss
Vcc
IL



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