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LM2703MFX-ADJ Fiches technique(PDF) 1 Page - Texas Instruments |
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LM2703MFX-ADJ Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 19 page L 10 PH 20V 15 mA R1 510k R2 33k LM2703 SW FB GND VIN SHDN D 1 2 3 4 5 VIN = Li-Ion 4.7 PF CIN CIN: Taiyo Yuden Ceramic COUT: Taiyo Yuden Ceramic L: Coilcraft DT1608C-103 or Murata LQY33PN100M02 (low profile) D: Motorola MBRM130LT3 1 PF COUT LM2703 www.ti.com SNVS172F – FEBRUARY 2002 – REVISED MAY 2013 LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit Check for Samples: LM2703 1 FEATURES DESCRIPTION The LM2703 is a micropower step-up DC/DC in a 2 • 350mA, 0.7 Ω, Internal Switch small 5-lead SOT-23 package. A current limited, fixed • Uses Small Surface Mount Components off-time control scheme conserves operating current • Adjustable Output Voltage up to 21V resulting in high efficiency over a wide range of load conditions. The 22V switch allows for output voltages • 2.2V to 7V Input Range as high as 21V. The low 400ns off-time permits the • Input Undervoltage Lockout use of tiny, low profile inductors and capacitors to • 0.01µA Shutdown Current minimize footprint and cost in space-conscious portable applications. The LM2703 is ideal for LCD • Small 5-Lead SOT-23 Package panels requiring low current and high efficiency as well as white LED applications for cellular phone APPLICATIONS back-lighting. The LM2703 can drive up to 4 white • LCD Bias Supplies LEDs from a single Li-Ion battery. • White LED Back-Lighting • Handheld Devices • Digital Cameras • Portable Applications Typical Application Circuit Figure 1. Typical 20V Application 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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