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LDO integrates two 300mA regulators

Posted: 30 Oct 2007 ?? ?Print Version ?Bookmark and Share

Keywords:LDO regulators? 300mA dual-output regulator? consumer applications?

Catalyst Semiconductor Inc. has rolled out its newest LDO regulatorthe CAT6221, a 300mA dual-output LDO. The new LDO integrates two 300mA regulators in a 6-lead, 0.8mm-tall TSOT-23 package, providing a smaller, cost-effective option for cellphones, battery-powered devices and other portable consumer products requiring two LDOs.

Each LDO in the CAT6221 has an independent enable pin and, combined, offer low quiescent current, 1-percent initial accuracy and a typical dropout voltage of 210mV at a 300mA load. Zero shutdown current, a low quiescent current of 100?A reduce power, and small, 1?F ceramic output capacitors provide stable operation, and minimize board space and component costs. Additional features include fold-back current limit and protection against short-circuit and thermal overload fault conditions.

CAT6221 LDO regulator is available in standard output voltage combinations of 2.8V/1.8V and 3.3V/1.8V. Additional output voltage combinations are available as special orders.

The CAT6221 LDO regulators are priced at 37 cents each in 10,000-piece quantities for the 2.8V/1.8V and 3.3V/1.8V standard output voltage combinations. Samples are available now. Projected lead-time for production quantities is currently six to eight weeks ARO.

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