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AN2808 Datasheet(PDF) 20 Page - STMicroelectronics

Part # AN2808
Description  The PM6670S device is a complete
PDF  40 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2808 Datasheet(HTML) 20 Page - STMicroelectronics

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PM6670S evaluation tests
AN2808
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Figure 19.
VDDQ = 1.8 V, VIN = 12 V, IVDDQ = 0.5 A, pulse-skip mode
10.2.3
VDDQ non-audible pulse-skip mode
To avoid a too low switching frequency, the non-audible pulse-skip mode can be selected
(JP3 in the upper position and JP1 in the middle). The minimum switching frequency
allowed is 33 kHz, as shown in Figure 20.
Figure 20.
VDDQ = 1.8 V, VIN = 12 V, no load, no-audible pulse-skip mode (33 kHz)



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