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LM27341 数据表(PDF) 28 Page - Texas Instruments |
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LM27341 数据表(HTML) 28 Page - Texas Instruments |
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28 / 44 page  LM27341/2 VIN PVIN EN BOOST SW FB GND / DAP VOUT C2 L1 C1 C3 R1 R2 D1 SYNC AVIN CLK 1 MHz ON OFF C5 C4 LM27341, LM27342, LM27341-Q1, LM27342-Q1 SNVS497E – NOVEMBER 2008 – REVISED APRIL 2013 www.ti.com Figure 43. VIN = 7 - 16V, VOUT = 5V, fSW = 1 MHz, IOUT = Full Load Figure 44. LM27342 Efficiency vs. Load Current Figure 45. Transient Response IOUT = 100 mA - 2A @ slewrate = 2A / µs Table 3. Bill of Materials for Figure 43 Part Name Part ID Part Value Part Number Manufacturer Buck Regulator U1 1.5 or 2A Buck Regulator LM27341 / LM27342 TI CPVIN C1 10 µF GRM32DR71E106KA12L Murata CBOOST C2 0.1 µF GRM188R71C104KA01D Murata COUT C3 47 µF GRM32ER61A476KE20L Murata COUT C4 22 µF C3225X7R1C226K TDK CFF C5 0. 27 µF C0603C274K4RACTU Kemet Catch Diode D1 Schottky Diode Vf = 0.32V CMS06 Toshiba Inductor L1 3.3 µH CDRH6D26HPNP Sumida Feedback Resistor R1 560 Ω CRCW0603560RFKEA Vishay Feedback Resistor R2 140 Ω CRCW0603140RFKEA Vishay 28 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LM27341 LM27342 LM27341-Q1 LM27342-Q1 |
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