Datasheet

TPS40195
www.ti.com SLUS720E –FEBRUARY 2007–REVISED JULY 2012
Table 4. Design Example 2 Bill of Materials
QTY RefDes Value Description Size Part Number MFR
1 C1 25 μF Capacitor, Aluminun, 25V, SM ±20% 0.406 in × EEVFK1E471P Panasonic
0.457 in
2 C2 22 μF Capacitor, Ceramic, 16V, XR5, 20% 0603 Std Std
1 C4 8.2 nF Capacitor, Ceramic, 16V, X7R, 10% 0603 Std Std
1 C5 220 pF Capacitor, Ceramic, 16V, X7R, 10% 0603 Std Std
3 C6, C7, 100 nF Capacitor, Ceramic, 16V, X7R, 10% 0603 Std Std
C13
1 C8 1 nF Capacitor, Ceramic, 50V, X7R,10% 0805 Std Std
1 C9 47 μF Capacitor, Ceramic, 6.3V, X5R, 20% 1210 C3225X5R0J476M TDK
1 C12 4.7 μF Capacitor, Ceramic, 10V, X5R, 10% Std Std
1 C14 1 nF Capacitor, Ceramic, 16V, X7R, 10% 0603 Std Std
1 L1 800 nH Inductor, SMT, 31A 0.512 × 0.571 PG0077.801 Pulse
inch
1- Q1 Si7860DP MOSFET, N-Ch, 30V, 15A, 11mΩ SOT-8 Si7860DP Vishay
PWRPAK
1 Q2 Si7868DP MOSFET, N-Ch, 20V, 2.75 mΩ, 25 A SOT-8 Si7868DP Vishay
PWRPAK
3 R2, R3, 2.32 kΩ Resistor, Chip, 1/16W, 5% 0603 Std Std
R6
1 R5 2.2 kΩ Resistor, Chip, 1/16W, 5% 0603 Std Std
1 R7 7.5 kΩ Resistor, Chip, 1/16W, 1% 0603 Std Std
1 R9 100 kΩ Resistor, Chip, 1/16W, 1% 0603 Std Std
1 R10 49.9 kΩ Resistor, Chip, 1/16W, 1% 0603 Std Std
1 R11 10 kΩ Resistor, Chip, 1/16W, 1% 0603 Std Std
1 U1 TPS40195PW 4.5-V to 20-V Synchronous Buck TSSOP-16 TPS40195PW TI
Controller
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