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DC/DC regulator supports 4.5-20V input-voltage

28 Nov 2012

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Analog Devices Inc. (ADI) introduced 20V DC/DC regulators featuring ultra-high conversion efficiency of greater than 95 per cent in a compact 168mm2 solution size. The ADP2384ACPZN-R7 and ADP2386ACPZN-R7offer 4.5-20V input-voltage and an output range from as low as 0.6V up to 18V with one per cent voltage accuracy.

The accurate current limit protection of the devices allows the use of smaller inductors that helps to minimise board space. The ADP2384/86 regulators provide a precision-enable input and a power-good output to allow a simple and reliable start-up sequence, noted ADI.

The DC/DC regulators claim to offer excellent stability and transient response to minimise the output voltage ripple, boasted the company. The switching frequency of the regulators can be synchronised to an external clock to eliminate beat frequencies between regulators. The ADP2384/86 operate over the -40°C to 125°C junction temperature range and are available in compact 4 by 4mm 24-lead LFCSP packages.

The ADP2384/86 features peak efficiency up to 95 per cent with efficiency profile optimised for low duty-cycle operation. It also boasts accurate current limit protection that reduce the size of external inductor and overall solution size, and synchronisation input to minimise input ripple current and reduce input filter design. The switching regulator also enables input and power-good output to provide a simple and reliable start-up sequence. The ADP2384 and ADP2386 are pin-to-pin compatible with each other, and comes in a compact solution size: 168mm2 (14 by 12mm).

The ADP2384ACPZN-R7 and ADP2386ACPZN-R7 are available for $1.74 and $2.04, respectively, in 1000 units.

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