Micrel Semiconductor Debuts New MIC2774 and MIC2777, Supervisor ICs

Micrel Semiconductor (San Jose, CA) has debuted a pair of dual ultra-low-voltage supervisor ICs for monitoring power supplies as low as 300mV. Available in Micrel's IttyBitty SOT23-5 packaging, the new MIC2774 and MIC2777 feature a choice of pre-programmed voltage options and ultra-low quiescent current.

A range of voltage options are available to accommodate standard logic supply voltages. Power supply current is 3.5uA. The MIC2777 features both active-high and active-low reset outputs. Manual reset capability can be achieved by adding an external reset switch. The MIC2774 has an industry-standard pinout with a dedicated manual-reset input and a choice of active-high, active-low, or open-drain active-low reset output.

“Most existing voltage supervisor ICs can monitor voltages only as low as 1.5V to 2.5V," claimed Jim Judkins, product marketing manager. “These devices, however, can monitor two supplies, one of which can be as low as 300mV. This is a unique capability."

In 1,000-piece quantities, the MIC2774 and MIC2777 are priced at $0.78 each. Samples are from stock.