Pending
LDO Regulators in Thin SOT-23 Packages
Catalyst Semiconductor has announced two new additions to its recently released low dropout regulator product line. The CAT6217 and CAT6218 LDO regulators source 150mA and 300mA output currents, respectively, in a tiny, five-lead, 1mm profile thin SOT-23 package. Alternatives to LDO regulators from National Semiconductor, Micrel, Maxim and others, the CAT6217 and CAT6218 offer a low quiescent current combined with a low typical dropout voltage of 90mV at a 150mA load for the CAT6217 and 180mV at a 300mA load for the CAT6218.
Additionally, an external bypass capacitor reduces overall output noise making the devices ideal for low noise applications. Many LDOs incorporating a bypass capacitor pay the penalty of slow “start up.” However, Catalyst’s LDO products are designed with a “quick start” feature to ensure a fast turn-on time of less than 150us, further optimizing the devices for low-power applications. The CAT6217 and CAT6218 eliminate battery drain when not in use by entering a “zero” current shutdown mode. They also offer a low typical quiescent current of 55uA and protection against short-circuit and thermal overload fault conditions.
The CAT6217 is available in output voltages of: 1.5V, 1.8V, 2.5V, 2.8V, 2.85V and 3.3V. The CAT6218 offers output voltages of: 1.8V, 2.4V, 2.7V, 2.85V, 3.0V, 3.2V and 3.3V.
The CAT6217 LDO regulator is priced at $0.20 each and the CAT6218 is priced at $0.23 each, both in 10,000 piece quantities. Samples are available now. Projected lead-time for production quantities is currently 6 to 8 weeks ARO.
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