Linear regulator suits MCU sleep modes

17 September 2008 Power Electronics / Power Management

Maxim’s new MAX16999 is a low-output-voltage linear regulator capable of delivering up to 100 mA for always-on applications. Designed as a parallel supply for powering the core or interrupt section of a microcontroller during sleep mode, this device consumes a mere 13 μA of quiescent current. To further reduce power consumption, it provides an enable input for placing the regulator in shutdown, in which it consumes only 0,3 μA.

Available in 13 factory-preset output voltages ranging from 0,5 V to 3,3 V, the device eliminates the need for external feedback resistors. It is ideally suited to always-on automotive and industrial applications that require high reliability and low power consumption.

Designed for harsh operating environments, the MAX16999 features over-current and over-temperature protection, as well as power-on-reset circuitry with adjustable timing. It is fully specified over the -40°C to +125°C automotive temperature range, and is available in a thermally enhanced, 8-pin microMAX package.

For more information contact Larry Gordon, CST Electronics, +27 (0)11 608 0070.

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