Datasheet

LM2727, LM2737
www.ti.com SNVS205D –AUGUST 2002–REVISED MARCH 2013
Table 8. Bill of Materials for Circuit of Figure 30
ID Part Number Type Size Parameters Qty. Vendor
U1 LM2727 Synchronous Controller TSSOP-14 1 Texas
Instrument
s
U2 LM78L05 Voltage Regulator SO-8 1 Texas
Instrument
s
Q1/Q2 Si4826DY Assymetric Dual N-MOSFET SO-8 30V, 24mΩ/ 8nC 1 Vishay
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 31
ID Part Number Type Size Parameters Qty. Vendor
U1 LM2727 Synchronous TSSOP-14 1 Texas
Controller Instruments
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
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