Product category:
Power Supply ICs and Controllers
News Release from: Fairchild Semiconductor | Subject: FAN5350
Edited by the Electronicstalk Editorial
Team on 21 June 2007
Convertor claims best of both worlds
Synchronous buck convertor has ultrafast architecture designed to simultaneously provide industry-leading quiescent current and transient-response performance.
New from Fairchild Semiconductor, the FAN5350 is billed as a revolutionary 3MHz/600mA DC/DC synchronous buck convertor It combines 16uA quiescent current, 20mV transient response and low voltage ripple
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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Designed to power DSP core processors, application processors and I/O interfaces, the FAN5350 uses Fairchild's proprietary new ultrafast architecture that is specifically designed to simultaneously provide industry-leading quiescent current and transient-response performance.
The FAN5350's 3MHz switching allows the device to employ small chip inductors (1uH) and still maintain low ripple.
Package options include both 1.00 x 1.37mm WLCSPs and 3 x 3mm MLPs, making it the smallest buck convertor on the market.
This high-performance, compact convertor enables designers to meet next-generation load requirements while preserving battery life and saving board space in cellphones, media players, GPS devices, Bluetooth headsets and other single-cell 2.7 to 5.5V lithium-ion-powered portable applications.
"The FAN5350 is the smallest-footprint 3MHz solution and can operate with low-profile 1uH chip inductors while maintaining greater than 90% efficiency", says Peter Khairolomour, Technical Marketing Manager at Fairchild.
"Typically, ultralow quiescent current translates into poor transient response; however, during a load transient swing of 0 to 300mA, the FAN5350's output sustains a fluctuation of less than 20mV".
"Transient response is becoming more and more critical as processor voltages continue dropping and load regulation requirements are tightening".
"This product shatters the age-old myth that quiescent current and transient response performance are mutually exclusive".
"The FAN5350 with 1.82V output voltage is the first voltage option offering in a growing portfolio of DC/DC synchronous buck convertors".
Available now, the FAN5350 is a lead (Pb)-free product that meets or exceeds the requirements of the joint IPC/JEDEC standard J-STD-020C and is compliant with European Union regulations now in effect.
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