SNVA869 November   2020 LP875761-Q1

 

  1.   Trademarks
  2. 1Design Parameters
  3. 2Power Solution
  4. 3Schematic
  5. 4Layout
    1. 4.1 Layout Considerations
    2. 4.2 Example Layout
  6. 5Recommended External Components
  7. 6Measurements
  8. 7Conclusion
  9. 8References

Recommended External Components

See Table 5-1 for the recommended external components to use in this solution with the LP875761-Q1. It also shows the total solution size including the PMIC device and the external components.

Table 5-1 Bill of Materials
SYSTEM COMPONENT COUNT VALUE SIZE PART NUMBER MANUFACTURER BOARD SIZE(1)
PMIC 1 - 4.5 x 4 mm LP875761ARNFRQ1 TI 27.5 mm2
Buck input capacitor 4 10 µF 0805 GCM21BR71A106KE22L Murata 27 mm2
Buck output inductor 4 0.33 µH 1008 DFE252012PD-R33M Murata 42 mm2
Buck output capacitor 26 22 µF 1206 GCM31CR71A226KE02 Murata 283.9 mm2
Buck output capacitor 4 100 nF 0402 GCM155R71C104JA55D Murata 12 mm2
Buck output capacitor 4 10 nF 0402 GCM155R71H103KA55D Murata 12 mm2
VANA supply capacitor 1 100 nF 0402 GCM155R71C104JA55D Murata 3 mm2
Snubber resistor 4 3.9 Ω 0402 CRCW04023R90JNED Vishay-Dale 12 mm2
Snubber capacitor 4 390 pF 0402 CGA2B2C0G1H391J050BA TDK 12 mm2
TOTAL 52 - - - - 431.4 mm2
Assuming 1 mm keep-out around each component, and multiplying by component count.