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LM2733 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM2733 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 22 page LM2733 ³;´ SW FB GND VIN SHDN U1 R3 51K SHDN GND 5 VIN C1 2.2PF R2 13.3K CF 120pF D1 MBR0530 R1/205K L1/10PH C2 4.7PF 20V OUT 170mA (TYP) LM2733 ³;´ SW FB GND VIN SHDN U1 R3 51K SHDN GND 5 VIN C1 2.2PF R2 13.3K CF 220pF D1 MBR0520 R1/117K L1/10PH C2 4.7PF 12V OUT 330mA (TYP) LM2733 www.ti.com SNVS209E – NOVEMBER 2002 – REVISED APRIL 2013 LM2733 0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23 Check for Samples: LM2733 1 FEATURES DESCRIPTION The LM2733 switching regulators are current-mode 2 • 40V DMOS FET Switch boost converters operating fixed frequency of 1.6 • 1.6 MHz (“X”), 0.6 MHz (“Y”) Switching MHz (“X” option) and 600 kHz (“Y” option). Frequency The use of SOT-23 package, made possible by the • Low RDS(ON) DMOS FET minimal power loss of the internal 1A switch, and use • Switch Current up to 1A of small inductors and capacitors result in the industry's highest power density. The 40V internal • Wide Input Voltage Range (2.7V–14V) switch makes these solutions perfect for boosting to • Low Shutdown Current (<1 µA) voltages of 16V or greater. • 5-Lead SOT-23 Package These parts have a logic-level shutdown pin that can • Uses Tiny Capacitors and Inductors be used to reduce quiescent current and extend • Cycle-by-Cycle Current Limiting battery life. • Internally Compensated Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation APPLICATIONS simplifies design and reduces component count. • White LED Current Source Table 1. Switch Frequency • PDA’s and Palm-Top Computers X Y • Digital Cameras 1.6 MHz 0.6 MHz • Portable Phones and Games • Local Boost Regulator Typical Application Circuit 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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