Datasheet

LM2742
www.ti.com SNVS266C –MARCH 2004–REVISED MARCH 2013
Table 8. Bill of Materials for Circuit of Figure 36
ID Part Number Type Size Parameters Qty. Vendor
U1 LM2742 Synchronous TSSOP-14 1 NSC
Controller
U2 LM78L05 Voltage Regulator SO-8 1 NSC
Q1/Q2 Si4826DY Assymetric Dual N- SO-8 30V, 24mΩ/ 8nC 1 Vishay
MOSFET Top 16.5mΩ/ 15nC
D1 BAT-54 Schottky Diode SOT-23 30V 1 Vishay
Lin RLF7030T-1R0N64 Inductor 6.8x7.1x3.2mm 1µH, 6.4A, 7.3mΩ 1 TDK
L1 SLF12565T-4R2N5R5 Inductor 12.5x12.5x6.5mm 4.2µH, 5.5A, 15mΩ 1 TDK
Cin1 16MV680WG Al-E D: 10mm L: 12.5mm 680µF 16V 3.4Arms 1 Sanyo
Cinx C3216X5R1C106M MLCC 1210 10µF 16V 3.4Arms 1 TDK
Co1 Co2 16MV680WG MLCC 1812 15µF 25V 3.3Arms 1 Sanyo
Cox C3216X5R10J06M MLCC 1206 10µF 6.3V 2.7A TDK
Cboot VJ1206X104XXA Capacitor 1206 0.1µF, 25V 1 Vishay
Cin C3216X7R1E225K Capacitor 1206 2.2µF, 25V 1 TDK
Css VJ1206X123KXX Capacitor 1206 12nF, 25V 1 Vishay
Cc1 VJ1206A8R2KXX Capacitor 1206 8.2pF 10% 1 Vishay
Cc2 VJ1206X102KXX Capacitor 1206 1nF 10% 1 Vishay
Cc3 VJ1206X472KXX Capacitor 1206 4.7nF 10% 1 Vishay
Rfadj CRCW12063252F Resistor 1206 32.5kΩ 1% 1 Vishay
Rc1 CRCW12065232F Resistor 1206 52.3kΩ 1% 1 Vishay
Rc2 CRCW120662371F Resistor 1206 2.37Ω 1% 1 Vishay
Rfb1 CRCW12062211F Resistor 1206 2.21kΩ 1% 1 Vishay
Rfb2 CRCW12061002F Resistor 1206 10kΩ 1% 1 Vishay
Rcs CRCW1206202J Resistor 1206 2kΩ 5% 1 Vishay
Table 9. Bill of Materials for Circuit of Figure 37
ID Part Number Type Size Parameters Qty. Vendor
U1 LM2742 Synchronous Controller TSSOP-14 1 NSC
Q1 Si4894DY N-MOSFET SO-8 30V, 15mΩ, 11.5nC 1 Vishay
D2 MBRS330T3 Schottky Diode SO-8 30V, 3A 1 ON
L1 SLF12565T-470M2R4 Inductor 12.5x12.8x 4.7mm 47µH, 2.7A 53mΩ 1 TDK
D1 MBR0520 Schottky Diode 1812 20V 0.5A 1 ON
Cin1 16MV680WG Al-E 1206 680µF, 16V, 1.54Arms 1 Sanyo
Cinx C3216X5R1C106M MLCC 1206 10µF, 16V, 3.4Arms 1 TDK
Co1, Co2 16MV680WG Al-E D: 10mm L: 12.5mm 680µF 16V 26mΩ 2 Sanyo
Cox C3216X5R10J06M MLCC 1206 10µF, 6.3V 2.7A 1 TDK
Cboot VJ1206X104XXA Capacitor 1206 0.1µF, 25V 1 Vishay
Cin C3216X7R1E225K Capacitor 1206 2.2µF, 25V 1 TDK
Css VJ1206X123KXX Capacitor 1206 12nF, 25V 1 Vishay
Cc1 VJ1206A561KXX Capacitor 1206 56pF 10% 1 Vishay
Cc2 VJ1206X392KXX Capacitor 1206 3.9nF 10% 1 Vishay
Cc3 VJ1206X223KXX Capacitor 1206 22nF 10% 1 Vishay
Rfadj CRCW12062673F Resistor 1206 267kΩ 1% 1 Vishay
Rc1 CRCW12066192F Resistor 1206 61.9kΩ 1% 1 Vishay
Rc2 CRCW12067503F Resistor 1206 750kΩ 1% 1 Vishay
Rfb1 CRCW12061371F Resistor 1206 1.37kΩ 1% 1 Vishay
Rfb2 CRCW12061002F Resistor 1206 10kΩ 1% 1 Vishay
Rcs CRCW1206122F Resistor 1206 1.2kΩ 5% 1 Vishay
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