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TPS61097-18DBVT Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61097-18DBVT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page 1 FEATURES APPLICATIONS DESCRIPTION TPS61097-33 V 0.9 V to 3.3 V IN VOUT EN L GND VIN V 3.3 V OUT C1 C2 L1 TPS61097 www.ti.com .............................................................................................................................................................. SLVS872A – JUNE 2009 – REVISED JULY 2009 LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH LOW QUIESCENT CURRENT • Up to 95% Efficiency at Typical Operating • Overtemperature Protection Conditions • Small 2.8-mm x 2.9-mm 5-Pin SOT-23 Package • Connection from Battery to Load via Bypass Switch in Shutdown Mode • MSP430 Applications • Typical Shutdown Current Less Than 5 nA • All Single-Cell, Two-Cell, and Three-Cell • Typical Quiescent Current Less Than 5 µA Alkaline, NiCd, NiMH, or Single-Cell Li-Battery • Operating Input Voltage Range Powered Products From 0.9 V to 5.5 V • Personal Medical Products • Fixed Output Voltage Options • Fuel Cell and Solar Cell Powered Products From 1.8 V to 5.0 V • PDAs • Power-Save Mode for Improved Efficiency at • Mobile Applications Low Output Power • White LEDs The TPS61097 provide a power supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd, or NiMH, or one-cell Li-Ion or Li-polymer battery. They can also be used in fuel cell or solar cell powered devices where the capability of handling low input voltages is essential. Possible output currents depend on the input-to-output voltage ratio. The devices provides output currents up to 100 mA at a 3.3-V output while using a single-cell Li-Ion or Li-Polymer battery. The boost converter is based on a current-mode controller using synchronous rectification to obtain maximum efficiency. The maximum average input current is limited to a value of 350 mA. The output voltage can be programmed by an external resistor divider, or it is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the battery is connected to the load to enable battery backup of critical functions on the load. The device is packaged in a 5-pin SOT-23 package (DBV) measuring 2.8 mm × 2.9 mm. 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 © 2009, 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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