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FAN2560 Fiches technique(PDF) 9 Page - Fairchild Semiconductor |
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FAN2560 Fiches technique(HTML) 9 Page - Fairchild Semiconductor |
9 / 11 page © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN2560 • Rev. 1.0.1 9 Application Example: Post Regulator for a Switching Converter The FAN2560 is an ideal choice for battery-powered equipment. The low quiescent bias current can be supplied directly from the battery, while the input voltage can come from a high-efficiency buck regulator, like FAN5350. This combination provides both best efficiency and low noise output. As can be seen in the scope pictures below the schematic, the already-low output voltage ripple, inherent to a switching regulator, is significantly attenuated by the FAN2560 at any frequency within the switching operating range. Figure 23. Post Regulator for a Switching Converter Figure 24. PFM Mode (100mA Load) Buck Ripple Rejection, Horizontal Scale: 500ns/div. Figure 25. PWM, 3MHz (300mA Load) Buck Ripple Rejection, Horizontal Scale: 200ns/div. |
Numéro de pièce similaire - FAN2560 |
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Description similaire - FAN2560 |
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