Datasheet

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TPS40322

www.ti.com

SLUSAF8D –JUNE 2011–REVISED JANUARY 2014

Table 7. TPS40322 Design Example 2, Two-Phase, Single Output Bill of Materials

REFERENCE

QTY DESCRIPTION PART NUMBER MFR

DESIGNATOR

C1, C2, C3, C31,

6 Capacitor, Ceramic, 22 µF, 25V, X5R, ±20%, 1210 Std Std

C32, C33

C4, C18, C28, C30 4 Capacitor, Ceramic, 1 µF, 50V, X7R, ±10%, 0603 Std Std

C5, C6, C7, C22, C29 5 Capacitor, Ceramic, 0.1 uF, 50V, X7R, ±10%, 0603 Std Std

C8, C21 2 Capacitor, Ceramic, 6.8 nF, 50V, X7R, ±10%, 0805 Std Std

C9 1 Capacitor, Ceramic, 2.2 nF, 16V, X7R, ±10%, 0603 Std Std

C10, C11, C12, C13, Capacitor, Polymer Aluminum, 220 µF, 4V, ±20%,

8 EEFSE0G221R Panasonic - ECG

C23, C24, C25, C26 5mM ESR

C14, C27 2 Capacitor, Ceramic, 22 µF, 6.3 V, X5R, ±10%, 0805 Std Std

C15 1 Capacitor, Ceramic, 8.2 nF, 16 V, X7R, ±10%, 0603 Std Std

C16 1 Capacitor, Ceramic, 330 pF, 16 V, X7R, ±10%, 0603 Std Std

C17 1 Capacitor, Ceramic, 22 nF, 50 V, X7R, ±10%, 0603 Std Std

C19, C20 2 Capacitor, Ceramic, 4.7 µF, 16 V, X7R, ±10%, 0805 Std Std

C38, C39 2 Capacitor, Aluminum, 100 µF, 25 V, ± 20%, F8 ECE-V1EA101XP Panasonic - ECG

Inductor, SMT, 0.47 µH, ±20%, 1.2 mΩ, 0.512 x

L1, L2 2 IHLP5050FDERR47M01 Vishay/Dale

0.571"

Q1, Q4 2 MOSFET, N-channel, 30 V, 30 A, 8mΩ, 5-LFPAK RJK0305 Renesas Electronics

Q2, Q3 2 MOSFET, N-channel, 30 V, 60 A, 2.1 mΩ, 5-LFPAK RJK0328 Renesas Electronics

R1 1 Resistor, Chip, 42 kΩ, 1/10W, ±1%, 0603 Std Std

R2 1 Resistor, Chip, 100 kΩ, 1/10W, ±1%, 0603 Std Std

R3, R19 2 Resistor, Chip, 4.7 kΩ, 1/10W, ±1%, 0603 Std Std

R4 1 Resistor, Chip, 38.5 kΩ, 1/10W, ±1%, 0603 Std Std

R5 1 Resistor, Chip, 49.9 Ω, 1/10W, ±1%, 0603 Std Std

R6, R8, R16 3 Resistor, Chip, 10 kΩ, 1/10W, ±1%, 0603 Std Std

R7, R27, R28, R29,

5 Resistor, Chip, 0 Ω, 1/10W, ±1%, 0603 Std Std

R30

R9 1 Resistor, Chip, 511 Ω, 1/10W, ±1% Std Std

R10, R17 1 Resistor, Chip, 1.00 Ω, 1/8W, ±1%, 0805 Std Std

R11, R18 2 Resistor, Chip, 5.11 Ω, 1/10W, ±1% 0603 603 Std

R12, R13 2 Resistor, Chip, 51 Ω, 1/10W, ±1%, 0603 Std Std

R14 1 Resistor, Chip, 3.32 kΩ, 1/10W, ±1%, 0603 Std Std

R15 1 Resistor, Chip, 40 kΩ, 1/10W, ±1%, 0603 Std Std

R26, R31 2 Resistor, Chip, 2 Ω, 1/10W, ±1%, 0603 Std Std

R20, R21, R22, R23,

0 not used Std Std

R24, R25,

U1 1 Dual synchronous buck controller, QFN-32 TPS40322RHB Texas Instruments