Micrel Offers New Family Of Micro-Power Dual LDOs For Battery-Powered Applications
Micrel Inc. launched the MIC5331/32/33 – a new dual channel micro-power LDO regulator family that is said to be well suited for today’s power-hungry, battery-powered electronics including mobile phones, PDAs, MP3 players, personal navigation devices (PND), digital still cameras and handheld instruments. This MIC533x family integrates two low quiescent current 300mA LDO regulators and up to two Power On Resets (POR) circuits into a 2 x 2mm Thin MLF® package, allowing hand-held customers to power up and still save battery time.
"Today’s portable applications continue to increase functionality while demanding equal or improved operating times from a single battery charge," noted Andy Khayat, Micrel’s Director of Marketing for Portable Power Products. "Micrel’s new MIC533x family of LDO regulators gives customers the ability to power up the most advanced features and the integration to reduce the solution size while using the absolute minimum amount of power. This gives designers the space savings and flexibility they need to create the latest and most feature-rich hand-held products possible."
The MIC533x family provides two 300mA LDO regulators with fast transient response to any load change condition and up to two POR circuits with adjustable delay time. The MIC533x family achieves this in spite of only consuming 40µA total while both outputs are enabled. Micrel claims that this combination of integration, high performance and low power consumption makes the MIC533x family suitable for all applications in portable electronics. The MIC5331/32/33 is a µCap design, operating with small ceramic output capacitors, which is said to reduce required board space and component cost; and it is available in fixed output voltages. In addition, this family offers high PSRR and full protection circuitry including current limit and thermal shutdown protection, with an operating junction temperature range of -40 to 125°C.
The MIC5331/2/3 family is currently available in volume quantities with pricing starting at $0.66 for 1K quantities.
