SNVAAA2 March   2025 LP87523-Q1 , LP87565-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Design Parameters
  6. 3 Power Design
  7. 4 Sequencing
    1. 4.1 Start-up
    2. 4.2 Shutdown
  8. 5 Schematics
  9. 6 Compatibility with G9V/Q/X
  10. 7 Software Drivers
  11. 8 Recommended External Components
  12. 9 Measurements
  13. 10Summary
  14. 11References

8 Recommended External Components

Table 8-1 shows the recommended external components to use in this design with the LP87565V-Q1, LP875230C-Q1, LP873248-Q1, TPS6281120-Q1, TLV76733-Q1, and TPS74501-Q1. The Bill of Materials also shows the total design size, including the PMIC device and the external components.

Table 8-1 Bill of Materials
COUNT VENDOR PART NUMBER SYSTEM COMPONENT W (mm) L (mm) H (mm) UNIT AREA(1) TOTAL BOARD AREA(1)
2 TI LP875x-Q1 Configurable 4-phase Buck 4.00 4.50 0.90 27.50 55.00
8 Murata DFE252012PD-R47M LP875x Inductor 0.47µH, Imax 4.0A, Rdc typ 21mΩ 2.50 2.00 1.20 10.50 84.00
8 Murata GCM21BR71A106KE22 LP875x SMPS Input Capacitor 10µF, 10V, 10% 2.00 1.25 1.25 6.75 54.00
16 Murata GCM21BD70J226ME35 LP875x SMPS Output Capacitor 22µF, 10V, 10% 2.00 1.25 1.25 6.75 108.00
2 Murata GCM155R71C104KA55D LP875x Input Capacitor 0.1µF, 16V, 10% 1.00 0.50 0.50 3.00 6.00
1 TI TPS74501-Q1 Low Dropout Regulator 2.00 2.00 0.80 9.00 9.00
1 Murata GCM188R71C105KA64D Input Capacitor 1µF 1.00 0.50 0.50 3.00 3.00
1 Murata GRT155C71A225KE13 Output Capacitor 2.2µF 1.00 0.50 0.50 3.00 3.00
1 TI TPS6281120-Q1 Buck Converter 3.00 2.00 0.80 12.00 12.00
1 Murata DFE252012PD-R47M Inductor 0.47µH, Imax 4.0A, Rdc typ 21mΩ 2.50 2.00 1.20 10.50 10.50
1 Murata GCM21BD70J226ME35 Input Capacitor 22µF, 10V, 10% 2.00 1.25 1.25 6.75 6.75
2 Murata GCM21BD70J226ME35 Output Capacitor 22µF, 10V, 10% 2.00 1.25 1.25 6.75 13.50
1 Murata GRT155R71H472KE01 CSS capacitors 1.00 0.50 0.50 3.00 3.00
1 Frequency set resistor, 10kΩ 1.00 0.50 0.50 3.00 3.00
1 Murata GCM21BR71A106KE22 Output Capacitor 10µF, 10V, 10% 2.00 1.25 1.25 6.75 6.75

1

TI

LP8732-Q1

Configurable 2 Bucks and 2 LDOs

5.00

5.00

1.00

36.00

36.00
2 Murata DFE252012PD-R47M LP8732 Inductor 0.47 µH, Imax 4.0A, Rdc typ 21mΩ 2.50 2.00 1.20 10.50 21.00
2 Murata GCM21BR71A106KE22 LP8732 Input Capacitor 10µF, 10V, 10% 2.00 1.25 1.25 6.75 13.50
4 Murata GCM21BD70J226ME35 LP8732 Output Capacitor 22µF, 10V, 10% 2.00 1.25 1.25 6.75 27.00
2 Murata GRT155C71A225KE13 LP8732 Input Capacitor 2.2µF, 6.3V, 10% 1.00 0.50 0.50 3.00 6.00
2 Murata GCM155C71A105KE38 LP8732 Output Capacitor 1µF, 16V, 10% 1.00 0.50 0.50 3.00 6.00
3 Murata GCM155R71C104KA55D LP8732 Input Capacitor 0.1µF, 16V, 10% 1.00 0.50 0.50 3.00 9.00
TOTAL 496.00mm2
Routing area calculated with 0.3 routing factor 212.57mm2
Total area 708.57mm2
(1) Assuming 1mm keep-out around each component, and multiplying by component count