Datasheet

PM6641 Application examples

Doc ID 13510 Rev 3 43/47

Note: This applicative solution has been tested and the PM6641EVAL demonstration board is now

available for demonstration.

Please refer also to PM6641 demonstration kit document for test and measurement results.

Table 13. BOM suggested components for DDR2 and chipset power supply

Qty Component Description Package Part number MFR Value

1 C1 Ceramic, 10 V, X5R, 10% SMD 0603 Standard 1 µF

C2, C3, C4,

C12

Ceramic, 10 V, X5R, 10% SMD 0805 GRM21BR61A106KE19 Murata 10 µF

C6, C7, C9,

C10, C15

Ceramic, 4 V, X5R, 20% SMD 1206 AMK316BJ107ML Taiyo Yuden 100 µF

1 C11 Ceramic, 6.3 V, X5R, 10% SMD 1206 GRM31CR60J226KE19 Murata 22 µF

1 C16 Ceramic, 16 V, X7R, 10% SMD 0603 Standard 100 nF

1 C18 Ceramic, 25 V, X7R, 10% SMD 0603 GRM188R71E333KA01 Murata 33 nF

3 C19, C20, C21 SMD 0603 Standard 22 nF

2 C22, C24 Ceramic, 50 V, C0G, 5% SMD 0603 Standard 330 pF

1 C23 Ceramic, 50 V, C0G, 5% SMD 0603 Standard 470 pF

C25, C26, C27,

C28

Ceramic, 50 V, C0G, 5% SMD 0603 Standard 100 pF

1 R1 Chip resistor, 0.1 W, 1% SMD 0603 Standard 3R3

1 R11 Chip resistor, 0.1 W, 1% SMD 0603 Standard 100 kΩ

1 R12 Chip resistor, 0.1 W, 1% SMD 0603 Standard 47 kΩ

R13, R17, R18,

R19, R20, R21,

R22, R23

Chip resistor, 0.1 W, 1% SMD 0603 Standard 68 kΩ

1 R32 Chip resistor, 0.1 W, 1% SMD 0603 Standard 0 Ω

2 L1, L3 SMT 11 Arms, 9.5 mΩ SMD 2827 744312100 /LF Würth 1.0 µ

1 L2 SMT 9 Arms, 10.5 mΩ SMD 2827 744312150 /LF Würth 1.5 µ

1 U1 IC VR - 48 PIN VFQFPN 7x7 PM6641 ST PM6641