The TPS61099x device is a synchronous boost converter with 1µA ultra-low quiescent current. The device is designed for products powered by an alkaline battery, NiMH rechargeable battery, Li-Mn battery, or rechargeable Li-Ion battery where high efficiency under light-load condition is critical to achieve long battery life operation.
The TPS61099x boost converter uses a hysteretic control topology to obtain maximal efficiency at minimal quiescent current. The device only consumes 1µA quiescent current under light-load condition and can achieve up to 75% efficiency at 10µA load with fixed output voltage version. The device can also support up to 300mA output current from 3.3V to 5V conversion, and achieve up to 93% at 200mA load.
The TPS61099x also offers both Down mode and Pass-Through operations for different applications. In Down mode, the output voltage can still be regulated at target value even when input voltage is higher than the output voltage. In Pass-Through mode, the output voltage follows input voltage. The TPS61099x exits Down mode and enters into Pass-Through mode when VIN > VOUT + 0.5V.
The TPS61099x supports true shutdown function when disabled, which disconnects the load from the input supply to reduce the current consumption.
The TPS61099x offers both adjustable output voltage version and fixed output voltage versions. The device is available in a 6-ball 1.23mm × 0.88mm WCSP Package and a 6-pin 2mm × 2mm WSON package.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| Application brief | Three Steps to Quickly Decide Your Boost Converter's Max Output Current | PDF | HTML | Mar 10, 2022 | |
| Technical article | 3 quiescent-current (Iq) specifications you need to understand | PDF | HTML | Nov 12, 2021 | |
| Technical article | How to design an infrared thermometer quickly | PDF | HTML | Apr 7, 2020 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | Dec 11, 2018 | ||
| Technical article | No strings attached: Creating next-generation wireless patient monitors | PDF | HTML | Jun 29, 2018 | |
| Application note | Calculating and Measuring the No Load Input Current of the Boost Converter | Sep 23, 2016 | ||
| Analog design Journal | Accurately measuring efficiency of ultralow-IQ devices | Jan 22, 2014 | ||
| Analog design Journal | IQ: What it is, what it isn’t, and how to use it | Jun 17, 2011 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFF) | 6 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
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