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SP7661 数据表(PDF) 14 Page - Sipex Corporation |
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SP7661 数据表(HTML) 14 Page - Sipex Corporation |
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14 / 20 page ![]() 14 Mar -07 Rev N SP766 Wide Input Voltage Range 3A, 600kHz Buck Regulator © 2007 Sipex Corporation APPLICATIONS INFORMATION Evaluation Board Schematic Parts shown for 9.6V-22V input, 3.3V Output 12V (9.6V-22V) SD101AWS 3.30V, 0-3A 1 1 PGND 1 PGND 2 PGND 3 PGND 4 GND 5 VFB 6 COMP 7 SS 8 GND 9 ISN 10 ISP 11 SWN 12 VIN 13 LX 14 LX 15 LX 16 BST 17 VIN 18 GND 19 GND 20 UVIN 21 VCC 22 LX 23 LX 24 LX 25 LX 26 1 1 LX R6 NP GND 2 C5 100uF C7 NP VOUT 3 U1 SP7661 Rs1 NP CZ2 6800pF C9 6.8nF Rs2 1 Ohm CP1 56pF RBST 0 Ohm C1 22uF C3 NP R7 NP C8 NP R1 10k CBST 22nF R8 NP R11 0 Ohm Cs1 NP Cs2 2.2nF C2 22uF GND 4 CVCC 4.7uF RZ3 400 R3 5.11K R9 61.9k DBST RZ2 4.02k L1,Wurth -744311220 2.2uH, 14 mOhm, 7x7mm, 9A R2 3160 R12 NP R14 NP VIN 1 C6 NP CSS 47nF R4 5.11K CZ3 1500pF C4 47nF CF1 100pF ISP ISN ISN LX LX ISP |
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