Datasheet

LM5642, LM5642X
www.ti.com SNVS219K –JUNE 2003–REVISED APRIL 2013
Table 1. Bill Of Materials for Figure 3 24V to 1.8, 3.3V LM5642
ID Part Number Type Size Parameters Qty Vendor
U1 LM5642 Dual TSSOP-28 1 TI
Synchronous
Controller
Q1, Q4 Si4850EY N-MOSFET SO-8 60V 2 Vishay
Q2, Q5 Si4840DY N-MOSFET SO-8 40V 2 Vishay
D3 BAS40-06 Schottky Diode SOT-23 40V 1 Vishay
L1 RLF12560T-4R2N100 Inductor 12.5x12.5x 6mm 4.2µH, 7mΩ 10A 1 TDK
L2 RLF12545T-100M5R1 Inductor 12.5x12.5x 4.5mm 10µH, 12mΩ 5.1A 1 TDK
C1 C3216X7R1H105K Capacitor 1206 1µF, 50V 1 TDK
C3, C4, C14, VJ1206Y101KXXAT Capacitor 1206 100pF, 25V 3 Vishay
C15
C27 C2012X5R1C105K Capacitor 0805 1µF, 16V 1 TDK
C6, C16 C5750X5R1H106M Capacitor 2220 10µF 50V, 2.8A 2 TDK
C9, C23 6TPD330M Capacitor 7.3x4.3x 3.8mm 330µF, 6.3V, 10mΩ 2 Sanyo
C2, C11, C12, VJ1206Y103KXXAT Capacitor 1206 10nF, 25V 4 Vishay
C13
C7, C25, C34 VJ1206Y104KXXAT Capacitor 1206 100nF, 25V 3 Vishay
C19 VJ1206Y822KXXAT Capacitor 1206 8.2nF 10% 1 Vishay
C20 VJ1206Y153KXXAT Capacitor 1206 15nF 10% 1 Vishay
C26 C3216X7R1C475K Capacitor 1206 4.7µF 25V 1 TDK
R1 CRCW1206123J Resistor 1206 12kΩ 5% 1 Vishay
R2, R6, R14, CRCW1206100J Resistor 1206 100Ω 5% 1 Vishay
R16
R13 CRCW1206682J Resistor 1206 6.8kΩ 12% 1 Vishay
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
R23 CRCW12068451F Resistor 1206 8.45kΩ 1% 1 Vishay
R24 CRCW12061372F Resistor 1206 13.7kΩ 1% 1 Vishay
R11, R20 CRCW12064991F Resistor 1206 4.99kΩ 1% 2 Vishay
R19 CRCW12068251F Resistor 1206 8.25kΩ 1% 1 Vishay
R27 CRCW12064R7J Resistor 1206 4.7Ω 5% 1 Vishay
R28 CRCW1206224J Resistor 1206 220kΩ 5% 1 Vishay
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