Product category:
Power Supply ICs and Controllers
News Release from: Analog Devices | Subject: ADP1864
Edited by the Electronicstalk Editorial
Team on 24 October 2005
DC/DC controller supports cost-conscious
design
A new constant-frequency current-mode step-down DC/DC controller in a TSOT package promises 40% cost reduction over competing ICs.
The ADP1864 is Analog Devices' first constant-frequency current-mode step-down DC/DC controller in a TSOT (thin-small-outline-transistor) package, offering 40% cost reduction over competing ICs The device is well-suited for cost-conscious designers of 5A distributed power systems - including set-top boxes, wireless basestations and medical instrumentation - who are looking to reduce the cost of their power supplies without sacrificing the performance of the integrated circuits they are using
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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Using Analog Devices' in-package trim techniques, the onboard reference accuracy is three times better than the closest competing devices, reducing the overall system regulation error budget to 5% over temperature.
The load line regulation of 1mV/A is twice that of competing devices.
The ADP1864's additional features include internal soft-start, short-circuit protection, output over-voltage protection, input under-voltage protection, and programmable current limit.
Current-mode control provides fast and stable load transient performance, while the 580kHz operating frequency reduces the size of the onboard inductor required, freeing up valuable board space.
The ADP1864 works particularly well for point-of-load systems that supply digital signal processors and embedded floating-point processors' I/Os, such as processors offered by Analog Devices.
Available in full production quantities, the ADP1864 is housed in a 6-lead TSOT and priced at $1.05 in 1,000-unit quantities.
The ADP1864 is specified over the extended industrial temperature range (-40 to +85C).
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