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SPSA068 Datasheet(PDF) 39 Page - STMicroelectronics |
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SPSA068 Datasheet(HTML) 39 Page - STMicroelectronics |
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39 / 49 page  9 Application information In the below picture, the SPSA068 typical application circuit is shown. The same application circuit is used for both 400 kHz and 2.4 MHz switching frequencies: only the BUCK inductor must be changed in according to the chosen switching frequency (see the Table 11). Figure 22. Typical application circuit µC µC µC µC VIO VIO VIO Cbatt 100uF L_Buck C_Buck C_VREF C_in µC µC D1 D2 VBAT R1 R2 R3 R4 R5 R6 R7 Ls 100uF VIO µC µC R8 Voltage Refrences Watchdog & Reset Buck Converter VREF Input Control Safety Management SPI PH PGND FB VS_SW VREF VS SGND AGND DGND WKUP DBUG WK_LPM FAULT WDI NRST CSN CLK DI DO SPSA068 Application information DS14755 - Rev 1 page 39/49 |
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