New Industry Products

ON Semi Introduces Dual Output LDO for Power Regulation In Portable Devices

September 24, 2007 by Jeff Shepard

ON Semiconductor introduced the NCP590 family of what are described as very high precision, dual-output CMOS Low Dropout Regulators (LDO). Offered in a ultra-small, low profile package, these devices are suitable 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 300mA per output. Voltages from 0.8 to 5V 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 5.5V 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 retain regulation longer and extend 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 suitable 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 described as 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.