Touchstone unveils ultra low power, load independent boost regulator
Touchstone Semiconductor's new boost regulator, the TS3300, uses only 3.5µA of supply current and is said to maintain 84% efficiency over a 100:1 output current span.
The regulator can operate from supply voltages from 0.6 up to 4.5V and deliver at least 75mA of continuous output current. According to Touchstone, it 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 set from 1.8 to 5.25V to power a range of low power analogue circuits, microcontrollers and low energy Bluetooth radios simultaneously.
For powering low energy radios, its internal, low dropout linear regulator can deliver up to 100mA output current while reducing boost converter generated output voltage ripple by three times.
Target applications include always on and other battery powered or portable applications where extended battery run time is a major system requirement.
