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LTC1643AL Datasheet(PDF) 10 Page - Linear Technology |
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LTC1643AL Datasheet(HTML) 10 Page - Linear Technology |
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10 / 16 page  10 LTC1643AL LTC1643AL-1/LTC1643AH 1643afb Figure 2. Normal Power-Up Sequence Figure 3. Normal Power-Down Sequence ON 10V/DIV TIMER 10V/DIV GATE 10V/DIV 12VOUT 5V/DIV 5VOUT 5V/DIV 3VOUT 5V/DIV VEEOUT 5V/DIV FAULT 10V/DIV PWRGD 10V/DIV 10ms/DIV 1643A F02 ON 10V/DIV TIMER 10V/DIV GATE 10V/DIV 12VOUT 5V/DIV 5VOUT 5V/DIV 3VOUT 5V/DIV VEEOUT 5V/DIV FAULT 10V/DIV PWRGD 10V/DIV 10ms/DIV 1643A F03 R2 0.005 Ω Q2 IRF7413 Q1 IRF7413 R1 0.007 Ω R5 10 Ω R6 10 Ω R7 100 Ω C1 0.047 µF 5V 5A 3.3V 7.6A GND –12V 100mA 12V 500mA R3 10k R4 10k 11 3 13 12 14 16 15 4 10 9 8 1 2 5 6 7 3VIN GND 12VIN VEEIN ON FAULT PWRGD 3VSENSE 5VSENSE 3VOUT LTC1643AH 5VOUT 12VOUT VEEOUT TIMER 5VIN GATE 1643A F01 SYSTEM POWER SUPPLY PCI POWER SYSTEM CONTROLLER C2 0.1 µF RESET LOGIC RESET 4 3 2 1 4 3 2 1 Figure 1. Typical PCI Application APPLICATIONS INFORMATION |
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