SNVA100B February 2005 – December 2021 LM2734 , LM2734-Q1
2 Operating Conditions
- VIN = 5 V
- VO = 1.8 V
- IO = 1 A
Figure 2-1 LM2734 Demo Board Schematic
Figure 2-2 Efficiency vs Load CurrentTable 2-1 Bill of Materials
X-Version
| Part ID | Part Value | Manufacturer | Part Number | Package Type |
|---|---|---|---|---|
| C1, Input Cap | 4.7 µF, 10 V, X5R | Murata | GRM42-6X5R475K10 | 1206 |
| C2, Output Cap | 10 µF, 6.3 V, X5R | Murata | GRM42-6X5R106K6.3 | 1206 |
| C3, Boost Cap | 0.01 µF | Vishay | VJ0805Y103KXXA | 0805 |
| D2, Boost Diode | 1 Vf at 50-mA Diode | Diodes, Inc. | 1N4148W | SOD-123 |
| R2 | 10 kΩ, 1% | Vishay | CRCW12061002F | 1206 |
| U1 | 1-A Buck Regulator | Texas Instruments | LM2734 | Thin SOT23-6 |
| D1, Catch Diode | 0.34-Vf Schottky, 1 A, 20VR | International Rectifier | MBRA120 | SMA |
| L1 | 2.7 µH, 1.8 A, 22 mΩ | TDK | SLF6028T-2R7M1R8 | 6028 |
| R1 | 12.4 kΩ, 1% | Vishay | CRCW12061242F | 1206 |
| R3 | 0 Ω | Vishay | CRCW12060R00F | 1206 |
| D3, C4, R4, R5 | Open |
Table 2-2 Bill of Materials
Y-Version
| Part ID | Part Value | Manufacturer | Part Number | Package Type |
|---|---|---|---|---|
| C1, Input Cap | 10 µF, 10 V, X5R | Murata | GRM42-6X5R106K10 | 1206 |
| C2, Output Cap | 10 µF, 6.3 V, X5R | Murata | GRM42-6X5R106K6.3 | 1206 |
| C3, Boost Cap | 0.01 µF | Vishay | VJ0805Y103KXXA | 0805 |
| D2, Boost Diode | 1 Vf at 50-mA Diode | Diodes, Inc. | 1N4148W | SOD-123 |
| R2 | 10 kΩ, 1% | Vishay | CRCW12061002F | 1206 |
| U1 | 1-A Buck Regulator | Texas Instruments | LM2734 | Thin SOT23-6 |
| D1, Catch Diode | 0.34-Vf Schottky, 1 A, 20VR | International Rectifier | MBRA120 | SMA |
| L1 | 6.8 µH, 1.5 A, 35 mΩ | TDK | SLF6028T-6R8M1R5 | 6028 |
| R1 | 12.4 kΩ, 1% | Vishay | CRCW12061242F | 1206 |
| R3 | 0 Ω | Vishay | CRCW12060R00F | 1206 |
| D3, C4, R4, R5 | Open |