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TPS61072 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61072 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page www.ti.com FEATURES DESCRIPTION APPLICATIONS SW C1 10 µF L1 4.7 µH VBAT VOUT FB C2 10 µF EN GND TPS61070 VO 3.3VUp To 100mA R1 R2 0.9-V ToVO TPS61070, TPS61071 TPS61072, TPS61073 SLVS510B – JULY 2006 – REVISED MAY 2007 90% EFFICIENT SYNCHRONOUS BOOST CONVERTER WITH 600-mA SWITCH • 90% Efficient Synchronous Boost Converter The TPS6107x devices provide a power supply solution for products powered by either a one-cell, – 75-mA Output Current at 3.3 V From 0.9-V two-cell, or three-cell alkaline, NiCd or NiMH, or Input one-cell Li-ion or Li-polymer battery. Output currents – 150-mA Output Current at 3.3 V From 1.8-V can go as high as 75 mA while using a single-cell Input alkaline, and discharge it down to 0.9 V. It can also • Device Quiescent Current: 19 µA (Typ) be used for generating 5 V at 200 mA from a 3.3 V rail or a Li-ion battery. The boost converter is based • Input Voltage Range: 0.9 V to 5.5 V on a fixed frequency, pulse-width-modulation (PWM) • Adjustable Output Voltage Up to 5.5 V controller using a synchronous rectifier to obtain • Power-Save Mode Version Available for maximum efficiency. At low load currents the Improved Efficiency at Low Output Power TPS61070 and TPS61073 enter the power-save mode to maintain a high efficiency over a wide load • Load Disconnect During Shutdown current range. The power-save mode is disabled in • Overtemperature Protection the TPS61071 and TPS61072, forcing the converters • Small 6-Pin Thin SOT23 Package to operate at a fixed switching frequency. The maximum peak current in the boost switch is typically limited to a value of 600 mA. • All One-Cell, Two-Cell, and Three-Cell The TPS6107x output voltage is programmed by an Alkaline, NiCd or NiMH or Single-Cell Li external resistor divider. The converter can be Battery-Powered Products disabled to minimize battery drain. During shutdown, • Portable Audio Players the load is completely disconnected from the battery. The device is packaged in a 6-pin thin SOT23 • PDAs package (DDC). • Cellular Phones • Personal Medical Products • White LED Lighting 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 © 2006–2007, 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. |
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