DSCC-qualified linear voltage regulators deliver 0.4-0.66 V (typ.) dropout voltage
DSCC-qualified linear voltage regulators deliver 0.4-0.66 V (typ.) dropout voltage
Keywords: Voltage regulation, Aircraft
International Rectifier (IR) has introduced a series of high current,ultra-low dropout (ULDO) linear voltage regulators in high density, hermetic packages for military and aerospace applications. The new regulators feature a typical dropout voltage of 0.4-0.66 V. Low dropout voltage means low power consumption, a requirement for power- restricted applications such as military and commercial aircraft, ground-based vehicles, radar and electronic warfare suites.
The ULDO DC-DC post regulator devices are said to have low ripple and low noise, with 1 per cent regulation tolerance. This makes them ideal for low-voltage point-of-load digital bus applications requiring fast transient response and output voltages from 20 to 1.8 V and an output current range of 3-10 A. Advanced PC processors can demand high jumps of current very quickly. Current steps of 300 mA to 4 A in 20 ns are not uncommon. When properly biased,IR's new regulators can provide the transient response necessary to handle this current demand.
All devices in this series are adjustable from 20 to 1.8 V and have an output current range of 3-10 A. The dropout voltage range is 0.4-0.60 V at full rated current. Input voltage range is 2.7-20 V.
The new regulators are Defense Supply Center Columbus (DSCC) certified, with standard microcircuit drawing (SMD) models available. IR's new regulators provide circuit designers with DSCC-qualified, components built to comply with military standards per MIL-PRF-38535/MIL- STD-883 specifications. “B”level screening per monolithic MIL-PRF-38535 is available.
The new regulators are available in a wide array of through-hole and surface-mount packages for design flexibility. Data sheets for the devices are posted on the IR Web site at www.irf.com
Details available from: International Rectifier Co. Ltd. Tel: +44 (0) 20 8645 8003; Fax: +44 (0) 20 8645 8077; E-mail: mwiggl@irf.com
