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Low-Power, High-Efficiency Boost Regulator

The TS3300 is an ultra-low-power, load-independent, high-efficiency boost regulator. It operates from supply voltages as low as 0.6 up to 4.5 V and can deliver at least 75 mA of continuous output current.

The TS3300 can be powered from a variety of power sources including single- or multiple-cell alkaline or single Li-chemistry batteries. The boost regulator’s output voltage range can be user-specified from 1.8 to 5.25 V to simultaneously power a range of low-power analog circuits, microcontrollers, and low-energy Bluetooth radios. The TS3300 produces a 3-V output from a 1.2-V input source. Its efficiency performance is constant over a 100:1 span in output current. To power low-energy radios, the TS3300’s internal, low-dropout linear regulator can deliver up to 100 mA output current while reducing boost-converter-generated output voltage ripple.

Drawing only 3.5 µA no-load supply current, the TS3300 is ideal for “always on” and other battery-powered or portable applications where an extended battery run-time is required. The TS3300 operates from low power sources (e.g., photovoltaic cells to three alkaline cells) and is ideally suited for handheld/portable applications (e.g., wireless remote sensors, RFID tags, wireless microphones, solar cell post-regulator/chargers, post-regulators for energy harvesting, blood glucose meters, and personal health-monitoring devices).

The TS3300 is fully specified over the –40°C-to-85°C temperature range and is available in a low-profile, thermally-enhanced 16-pin 3mm × 3mm TQFN package with an exposed backside paddle. The TS3300 costs $0.85 in 1,000-unit quantities.

Touchstone Semiconductor
http://touchstonesemi.com

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Low-Power, High-Efficiency Boost Regulator

by Circuit Cellar Staff time to read: 1 min