Automotive LDO voltage regulator portfolio features five energy efficient integrated devices
July 21, 2011 // Paul Buckley
ON Semiconductor has launched five new low and ultra low-dropout (LDO) linear voltage regulators to address a wide range of automotive applications such as rear camera modules, instrument clusters, and body and chassis applications. The new devices deliver 150 mA of output current, in space saving integrated solutions that meet the latest requirements from car manufacturers for low quiescent currents when the ignition is switched off.
The ultra low Iq NCV8768 and NCV8769 regulators feature typical quiescent currents of 31 microamperes (µA) and 25 µA respectively, making them suitable for applications permanently connected to the battery. The NCV8768 features an Enable function that further decreases the quiescent current to 1 µA, and reverse output current protection. Both devices include current limit and thermal shutdown features.
The low Iq NCV8668 features quiescent current of 38 µA, and an integrated window watchdog (dual sided detection) that allows the detection of microprocessor malfunctions – an important requirement for automotive modules that have an impact on safety. The device features quiescent current of 38 µA, delivers extremely stable performance, and requires a minimal number of external components to reduce overall solution costs and save board space. Other features of the NCV8668 include reset, a programmable delay time, and an enable function.
The low Iq NCV8667 and NCV8669 are identical, except the NCV8667 includes an Enable pin. With a user adjustable early warning threshold option, the Iq of the devices is lowered to 28 µA typical. The devices provide replacements for ON Semiconductor’s NCV4269(A) in applications where low quiescent current is a requirement; both specify a quiescent current of 42 µA typical. With built-in reset, delay and early warning functions, the NCV8667 and NCV8669 offer the ideal integrated solution for a range of voltage monitoring tasks.
All five new parts are AEC Q100 qualified and Production Part Approval Process (PPAP) capable. NCV8768 and NCV8769 are offered in Pb-free, RoHS-compliant SOIC-14 packages; they are priced between $1.16 and $1.32 per unit in 2,500 unit quantities. NCV8667, NCV8668, and NCV8669 are offered in Pb-free, RoHS-compliant SOIC-8 and SOIC-14 packages; they are priced between $0.82 and $1.20 per unit in 2,500 unit quantities.
Visit ON Semiconductor at www.onsemi.com.
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