Micrel Launches Low Input Voltage Dual LDO Family for High-efficiency Apps

(Product News, 1 Aug 2008)

Micrel Inc. has launched the MIC5313/4/5/6, a new family of low input voltage capable, low dropout regulators (LDOs) that integrate two LDOs capable of operating from an input voltage as low as 1.7V, while consuming only 37µA total quiescent current.

The MIC531x family is designed with very low dropout voltage to regulate from low voltage rails and provide the highest conversion efficiency possible. Each one of the dual regulator can supply up to 0.3A of output current, while only consuming 37µA total quiescent current when both channels are enabled. The combination of low quiescent, low input voltage capability and low quiescent current allow the MIC531x family to be used in demanding applications that need to be powered up at all times. The MIC5313/4/5/6 product family allows use of very small ceramic output capacitors, which reduces required board space and component cost. The product family is available in fixed output voltages. In addition, this family offers high PSRR, POR, voltage scaling, fast turn-on time, current limit and thermal shutdown protection, and can operate from -40°C to 125°C. The MIC5313/15 is offered in a 2x2mm Thin MLF 10-lead, and the full featured MIC5314/16 is offered in a 2.5x2.5mm Thin MLF 12-lead package.

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