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RT9911PQV Datasheet(PDF) 2 Page - Richtek Technology Corporation |
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RT9911PQV Datasheet(HTML) 2 Page - Richtek Technology Corporation |
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2 / 32 page  RT9911 2 DS9911-04 August 2007 www.richtek.com Typical Application Circuit Figure 1. Application Circuit for 2-Cells Battery Supply Note : Bottom pad is GND pad, can be short to pin 6 (GND). Please remove Q2 when use Async Boost and remove D5 when use Sync Boost. PVDD1 FB2 OK2 FB1 LX2 PVDD2 LX1 DRN3 GND GND CS3 VREF PVDD5 FB4 EXT4 9 11 10 7 26 2 30 25 19 23 22 20 33 31 4 13 14 18 5 RT9911 PGND1 10uF VBAT 2.2M 10uF VBAT 10uF 1M 10uFx2 125k 4.7uF 10uF VBAT FB5 EXT5 EXT6 VFB6 CFB6 1uF VBAT 100pF 470k 150k 510k 300k 240k 10uF VCORE 1.8V 300mA 10uF VBAT 10uFx2 10uFx2 10uFx4 470k VS 3.3V DRP3 FB3 90.9k Motor 5V 500mA PVDD3 28 24 EN1 EN1 EN3 EN4 EN5 EN6 EN1 EN2 EN3 EN4 EN5 EN6 RT VS 3.3V CCD 12V 20mA CCD -8V/40mA VS 3.3V I/O 3.3V 500mA 832 27 16 12 21 40 39 38 37 36 35 6 3 1 15 17 34 29 PGND2 C1 to C2 C7 C9 C11 C12 to C13 C15 to C18 C19 C20 C21 C24 C26 to C27 4.7uF C28 C29 C30 C31 to C36 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 10 R14 R15 to R21 L1 L4 L5 L6 L2 L3 SS0520 SS0520 SS0520 D1 D2 D3 Q1 Q3 Q4 Q5 Q6 4.7uH 10uFx4 C3 to C6 0.1uF C8 4.7uH 100pF C10 4.7uH 100pF C14 4.7uH 100pF C22 205k 3.3uH 100pF C25 4.7uH 300k D4 3.3V 1uF C23 Q2 D5 D6 D7 D8 Bottom PAD 1.8V to 3.2V D9 1M 20k R22 |
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