Linear Technology Corp. (LTC, Milpitas, CA) announced the LT3023, a dual-100mA, low-dropout (LDO), low-noise micropower regulator, which operates from an input-voltage range of 1.8V to 20V, delivering two 100mA outputs at voltages as low as 1.22V. Its wide 1.8V to 20V input voltage accommodates sources from single-cell lithium-ion or multi-cell alkaline/nickel-metal hydride, as well as higher-voltage fixed rails.
With a 0.01µF bypass capacitor, output noise drops to 20µVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 20µA quiescent current per channel makes it suitable for maximizing run time. Quiescent current in shutdown is less than 1µA per channel and two shutdown pins allow independent control. Dropout voltage is only 300mV (at 100mA), enabling low dropout applications such as 3.6V input to a regulated 3.3V output.
The LT3023 regulator is stable with tiny 1µF output capacitors without the series resistance required by other regulators. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The LT3023 is available with an adjustable output in either a thermally enhanced MSOP-10 package or a 3mm x 3mm DFN.
The LT3023 is available from stock with 1,000-piece pricing starting at $1.70 each for the DFN and $1.60 each for the MSOP.
