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TPS61040 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61040 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page ![]() 1 FEATURES DESCRIPTION APPLICATIONS 3 2 4 5 DBV PACKAGE (Top View) 1 SW GND FB VIN EN GND SW VIN NC EN FB 3 2 1 4 5 6 DRV PACKAGE (Top View) TYPICAL APPLICATION VIN SW FB EN GND L1 10 µH D1 R1 R2 CFF CO 1 µF VOUT VIN to 28 V VIN 1.8 V to 6.0 V CIN 4.7 µF 70 72 74 76 78 80 82 84 86 88 90 0.10 1 10 100 VI = 5 V VI = 3.6 V VI = 2.4 V EFFICIENCY vs OUTPUT CURRENT IO - Output Current - mA 5 4 2 3 1 VO = 18 V TPS61040 TPS61041 SLVS413C – OCTOBER 2002 – REVISED AUGUST 2007 www.ti.com LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES • 1.8-V to 6-V Input Voltage Range The TPS61040/41 is a high-frequency boost converter dedicated for small to medium LCD bias • Adjustable Output Voltage Range up to 28 V supply and white LED backlight supplies. The device • 400-mA (TPS61040) and 250-mA (TPS61041) is ideal to generate output voltages up to 28 V from a Internal Switch Current dual cell NiMH/NiCd or a single cell Li-Ion battery. • Up to 1-MHz Switching Frequency The part can also be used to generate standard 3.3-V/5-V to 12-V power conversions. • 28-μA Typical No-Load Quiescent Current • 1-μA Typical Shutdown Current The TPS61040/41 operates with a switching frequency up to 1 MHz. This allows the use of small • Internal Soft Start external components using ceramic as well as • Available in SOT23-5 and 2 × 2 × 0.8-mm SON tantalum output capacitors. Together with the thin Packages SON package, the TPS61040/41 gives a very small overall solution size. The TPS61040 has an internal 400 mA switch current limit, while the TPS61041 has • LCD Bias Supply a 250-mA switch current limit, offering lower output voltage ripple and allows the use of a smaller form • White-LED Supply for LCD Backlights factor inductor for lower power applications. The low • Digital Still Camera quiescent current (typically 28 μA) together with an • PDAs, Organizers, and Handheld PCs optimized control scheme, allows device operation at • Cellular Phones very high efficiencies over the entire load current range. • Internet Audio Player • Standard 3.3-V/5-V to 12-V Conversion 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. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2007, 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. |
Similar Part No. - TPS61040_07 |
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Similar Description - TPS61040_07 |
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