Datasheet

SLUU189 − July 2004
16
TPS40009-Based 5-A Converter in Less Than One Square Inch
8 List of Material
Table 1 lists the components used in this design. With minor component tweaks this design could be modified
to meet a wide range of applications.
Reference Qty Description Manufacturer Part Number
Capacitor
C1, C2, C5, C6 4 Ceramic, 22 µF, 6.3 V, X5R, 20%, 1210 Panasonic ECJ−4YB0J226M
Capacitor
C10 1 Ceramic, 0.001 µF, 10 V, X5R, 10%, 805 Panasonic ECJ−2YB1A105K
C11 1 Ceramic, 0.0047 µF, 50 V, X7R, 10% Vishay VJ0603Y472KXAAT
C12 1 Ceramic, 470 pF, 50 V, X7R, 10% Vishay VJ0603Y471KXAAT
C3 1 Ceramic, 0.1 µF, 50 V, X5R, 10% Vishay VJ0805Y104KXAAT
C4 1 Ceramic, 0.001 µF, 50 V, X7R, 10% Vishay VJ0603Y102KXAAT
C8 1 Ceramic, 68 pF, 50 V, NPO, 10% Vishay VJ0603A680KXAAT
C9 1 Ceramic, 0.0033 µF, 50 V, X7R, 10% Vishay VJ0805Y332KXAAT
Terminal Block J1, J2 2 2 pin, 15 A, 5.1 mm OST ED1609
Inductor L1 1 SMT, 1.0 µH, 8.5 A, 10 mΩ Vishay IHLP−2525CZ−01
MOSFET Q1 1 Dual N−channel, 20 V, 9.4 A, 18 mΩ Fairchild FDS6898A
Resistor
R1 1 Chip, 15 kΩ, 1/16W, 1% Std Std
Resistor
R2 1 Chip, 8.66 kΩ, 1/16 W, 1% Std Std
R3 1 Chip, 2.2 Ω, 1/10 W, 5% Std Std
R4 1 Chip, 12.1 kΩ, 1/16 W, 1% Std Std
R5 1 Chip, 1 kΩ, 1/16 W, 1% Std Std
R6 1 Chip, 16.9 Ω, 1/16 W, 1% Std Std
JACK TP1, TP3, TP4, 5 Test point, red Farnell 240−345
JACK TP2, TP6 2 Test point, black Farnell 240−333
Adaptor TP5 1 3.5-mm probe clip (or 131−5031−00) Tektronix 131−4244−00
Device U1 1 Syncronous buck controller, 600 kHz TI TPS40009DGQ