Datasheet

LM5642, LM5642X
SNVS219K –JUNE 2003–REVISED APRIL 2013 www.ti.com
Table 2. Bill of Materials for Figure 4 30V to 1.8V, 20A LM5642
ID Part Number Type Size Parameters Qty Vendor
U1 LM5642 Dual TSSOP-28 1 TI
Synchronou
s Controller
Q1, Q4 Si4850EY N-MOSFET SO-8 60V 2 Vishay
Q2, Q3, Q5, Q6 Si4470DY N-MOSFET SO-8 60V 4 Vishay
D3 BAS40-06 Schottky SOT-23 40V 1 Vishay
Diode
L1,L2 RLF12560T-2R7N110 Inductor 12.5x12.5x 6mm 2.7µH,4.5mΩ 11.5A 2 TDK
C1 C3216X7R1H105K Capacitor 1206 1µF, 50V 1 TDK
C10, C24, C27 C2012X5R1C105K Capacitor 0805 1µF, 16V 3 TDK
C6, C16, C28, C5750X5R1H106M Capacitor 2220 10µF 50V, 2.8A 4 TDK
C30
C9, C23 16MV1000WX Capacitor 10mm D20mm H 1000µF, 16V, 22mΩ 2 Sanyo
C2, C13 VJ1206Y103KXXAT Capacitor 1206 10nF, 25V 2 Vishay
C11 VJ1206Y223KXXAT Capacitor 1206 22nF, 25V 1 Vishay
C7,C25, C34 VJ1206Y104KXXAT Capacitor 1206 100nF, 25V 3 Vishay
C19 VJ1206Y273KXXAT Capacitor 1206 27nF 10% 1 Vishay
C26 C3216X7R1C475K Capacitor 1206 4.7µF 25V 1 TDK
R1, R13 CRCW1206123J Resistor 1206 16.9kΩ 1% 1 Vishay
R2, R6, R14, CRCW1206100J Resistor 1206 100Ω 5% 1 Vishay
R16
R7, R15 WSL-2512 .010 1% Resistor 2512 10mΩ 1W 2 Vishay
R8, R9, R12, CRCW1206000Z Resistor 1206 0Ω 8 Vishay
R17, R18, R21,
R31, R32
R10 CRCW12062261F Resistor 1206 2.26kΩ 1% 1 Vishay
R11 CRCW12064991F Resistor 1206 4.99kΩ 1% 1 Vishay
R23 CRCW12061152F Resistor 1206 11.5kΩ 1% 1 Vishay
R27 CRCW12064R7J Resistor 1206 4.7Ω 5% 1 Vishay
R28 CRCW1206224J Resistor 1206 220kΩ 5% 1 Vishay
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