Catalyst Semiconductor's low dropout (LDO) regulator integrates two 300mA regulators in a 6-lead, 0.8mm height TSOT-23 package, providing a smaller, cost-effective option for cell phones, battery-powered devices and other portable consumer products requiring two LDOs.
Each LDO in the CAT6221 has an independent enable pins. Combined, they offer low quiescent current, 1 percent initial accuracy, and a very low typical dropout voltage of 210mV at a 300mA load.
Zero shutdown current, a low quiescent current of 100ÎĽA reduce power, and small, 1ÎĽF ceramic output capacitors provide stable operation, and minimize board space and component costs. Other features include fold-back current limit and protection against short-circuit and thermal overload fault conditions.
Available in standard output voltage combinations of 2.8V/1.8V and 3.3V/1.8V the CAT6221 accommodates additional output voltage combinations as special orders.
Product features include:
- Low drop out voltage of 210mV typical at 300mA
- Quick-start feature for fast turn-on time (<150ÎĽs)
- Under-voltage lockout
- No-load ground current: 100ÎĽA typical
- 1.0% output voltage initial accuracy, ±2.0% accuracy over temperature
- Fold-back current limit and thermal protection
- Packaging: 6-lead TSOT-23, 0.8mm height
CAT6221 LDO regulators are priced at $0.37 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 6 to 8 weeks ARO.
More information is available at www.catsemi.com.
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