ON Semiconductor intros LDO for portable devices

CIOL Bureau
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PHOENIX: ON Semiconductor, a leader in power semiconductor solutions,introduced the NCP590 family of a very high precision, dual-output CMOS Low Dropout Regulators (LDO).Offered in a ultra-small, low profile package, these devices are ideal for battery powered consumer and microprocessor-controlled portable applications such as cell phones, PDAs, GPS and Portable Media Players.


The NCP590 family of LDOs is capable of delivering up to 300 milliamps (mA) per output. A special combination of process and architecture is employed to offer fast customer response and outstanding flexibility. Voltages from 0.8 volts (V) to 5 V are available to accommodate the varied needs of customers. The NCP590 is stable with any type of capacitor and under no-load conditions. The set point output voltage of the NCP590 is accurate to within +/- 0.9% with an operating voltage input up to 5.5 V meeting very tight overall error budget requirements of high-performance applications.

With its ultra low dropout characteristics (150mV@Iout=300mA) and low ground current consumption, the devices retains regulation longer and extends battery usage. These performance features, and the compact 2 mm x 2 mm x 0.9 mm DFN-8 package they are offered in, make the NCP590 family ideal for all battery operated consumer and microprocessor applications.

Two independent ENABLE pins with sub-1V thresholds allow increased flexibility, supporting the latest ASIC chipset and Power Management Unit platforms. Protected against short circuit, undervoltage lockout and thermal overload conditions, the NCP590 is a robust solution that helps maintain high system level performance. During transient events, the NCP590 maintains accurate regulation due to its internally compensated regulator. When disabled, the internal active discharge circuitry accelerates desired output response. The NCP590 is offered in a DFN-8 package and priced at $0.37 per unit in 10,000 unit quantities. For additional