Product category:
Power Supply ICs and Controllers
News Release from: Analog Devices | Subject: ADP1822
Edited by the Electronicstalk Editorial
Team on 05 October 2005
Switching controller handles high
current tasks
A new single-phase high-current switching controller is ideal for applications that demand regulated precision and reliability, such as wireless basestations and network computing systems.
Analog Devices is introducing a new single-phase high-current switching controller ideal for applications that demand regulated precision and reliability, such as wireless basestations and network computing systems The ADP1822 is a synchronous, fixed-frequency switching controller well suited for high current applications - such as communications infrastructure systems and high performance servers
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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A critical need for designing to meet power management requirements is how best to manage multiple power sources.
The ADP1822 output voltage can track an input voltage when multiple power rails sequencing is required.
This regulated output can be dynamically adjusted up or down with the regulator's margining-control inputs.
Margining offers the capability to offset the regulated output voltage by a few percent when the system reliability is being checked.
The ADP1822 drives an all N-channel power stage to regulate an output voltage as low as 0.6V with 20A load current.
The controller features a +/-1% 0.6V onboard voltage reference, making it ideal for next generation DSPs, FPGAs, core supplies and microprocessors, which require a low and accurate power supply voltage under 1V.
The ADP1822 works particularly well with Analog Devices' embedded processors.
The device operates from a 3.0 to 5.5V supply, and its wide voltage range of 1.0 to 24V provides flexibility for designers developing higher voltage applications.
Additional features include programmable soft-start, power good indicator, shutdown, thermal overload protection, overvoltage protection and undervoltage lockout.
The ADP1822 is available now in a 24-lead QSOP (small outline package) at $1.80 per unit in 1000-unit quantities, and is offered over the extended industrial temperature range of -40 to +85C.
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