SNVAA40 May   2022 LP87523-Q1 , LP87565-Q1

 

  1.   Trademarks
  2. 1Design Parameters
  3. 2Power Solution
  4. 3Sequencing
    1. 3.1 Startup
    2. 3.2 Shutdown
  5. 4Schematic
  6. 5Software Drivers
  7. 6Recommended External Components
  8. 7Measurements
  9. 8Summary
  10. 9References

6 Recommended External Components

Table 6-1 shows the recommended external components to use in this solution with the LP87565V-Q1, LP875230C-Q1, TPS6281120-Q1, TLV76733-Q1, and TPS74518-Q1. It also shows the total solution size, including the PMIC device and the external components.

Table 6-1 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 21mOhm 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 TPS74518-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 21mOhm 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, 10kOhm 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 TLV76733-Q1 Low Dropout Regulator 3.00 3.00 1.00 16.00 16.00
1 Murata GCM188R71C105KA64D Input Capacitor 1µF 1.00 0.50 0.50 3.00 3.00
1 Murata GCM188R71C105KA64D Input Capacitor 1µF 1.00 0.50 0.50 3.00 3.00
TOTAL 399.50 mm2
Routing area calculated with 0.3 routing factor 171.21 mm2
Total area 570.71 mm2
(1) Assuming 1 mm keep-out around each component, and multiplying by component count