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

5 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
(1) Assuming 1 mm keep-out around each component, and multiplying by component count.