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SP6652EU Datasheet(PDF) 3 Page - Sipex Corporation |
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SP6652EU Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 16 page 3 May25-07 RevH SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator © 2007 Sipex Corporation pin Description SP6652 10 Pin MSOP 10 9 8 7 6 LX P SVIN SYNC MODE PGND SGND FB COMP SD 1 2 3 4 5 VIN SP6652 10 Pin DFN 10 9 8 7 6 1 2 3 4 5 P GND SGND FB COMP SD LX P VIN S VIN SYNC MODE Pin Number pin NAME Description PGND Power Ground Pin. Synchronous rectifier current returns through this pin. SGND Internal Ground Pin. Control circuitry returns current to this pin. 3 FB External feedback network input connection. Connect a resistor from FB to ground and from FB to VOUT to control the output voltage. Regulation point at FB = 0.8V Typical. 4 COMP Compensation pin for error loop. Connect an R and C in series to ground to control open loop pole and zero. 5 SD Shutdown control input. Tie pin to VIN for normal operation, tie to ground for shutdown. TTL input threshold. 6 MODE Connect this pin to VIN. 7 SYNC An external clock signal can be connected to this pin to synchronize the switching frequency. 8 SVIN Internal supply voltage. Control circuitry is powered from from this pin. Use an RC filter close to the pin to cut down supply noise. 9 PVIN Supply voltage for the output driver stage. Inductor charging current passes through this pin. 0 LX Inductor switching node. Inductor tied between this pin and the output capacitor to create regulated output voltage. |
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