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MMPF0200Z Datasheet(PDF) 111 Page - NXP Semiconductors |
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MMPF0200Z Datasheet(HTML) 111 Page - NXP Semiconductors |
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111 / 118 page  Analog Integrated Circuit Device Data Freescale Semiconductor 111 PF0200Z Typical Applications PF0200Z Layout Guidelines 7.2.5 Switching Regulator Layout Recommendations 1. Per design, the switching regulators in PF0200Z are designed to operate with only one input bulk capacitor. However, it is recommended to add a high-frequency filter input capacitor (CIN_hf), to filter out any noise at the regulator input. This capacitor should be in the range of 100 nF and should be placed right next to or under the IC, closest to the IC pins. 2. Make high-current ripple traces low-inductance (short, high W/L ratio). 3. Make high-current traces wide or copper islands. Figure 26. Generic Buck Regulator Architecture Figure 27. Recommended Layout for Buck Regulators Driver Controller SWxIN SWxLX SWxFB COUT CIN L SWx VIN Compensation CIN_HF |
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