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L6722 数据表(PDF) 4 Page - STMicroelectronics |
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L6722 数据表(HTML) 4 Page - STMicroelectronics |
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4 / 34 page ![]() 1 Typical application circuit and block diagram L6722 4/34 1 Typical application circuit and block diagram 1.1 Application circuit Figure 1. Typical application circuit L1 7 8 9 BOOT1 UGATE1 PHASE1 LGATE1 3 ISEN1 31 RISEN HS1 LS1 L2 10 11 12 BOOT2 UGATE2 PHASE2 LGATE2 5 ISEN2 30 HS2 LS2 L3 13 14 15 BOOT3 UGATE3 PHASE3 LGATE3 6 ISEN3 29 RISEN HS3 LS3 PGOOD 16 COUT Vcc_core LOAD VSEN 34 FB 35 RFB COMP 36 RF CF REF_IN 19 1, 26 OSC/INH/FLT 18 PGND 4 SGND VCC 2 LIN PGOOD VIN GNDIN CIN L6722 REFERENCE SCHEMATIC RISEN REF_OUT 20 CS+ 32 CS- 33 FBG FBR 28 27 to BOOT1 to BOOT2 to BOOT3 ROSC R1 R2 R2 R1 |
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