Product category:
Power Supply ICs and Controllers
News Release from: Microchip Technology | Subject: MCP1603
Edited by the Electronicstalk Editorial
Team on 24 May 2007
Switcher chip cuts handheld power drain
A 2MHz, 500mA switching regulator provides adjustable and fixed output voltages with an operating efficiency of up to 90%.
New from Microchip, the MCP1603 is a 2MHz, 500mA switching regulator that provides adjustable and fixed output voltages with an operating efficiency of up to 90% Available in a choice of TSOT-23 and 2 x 3mm DFN packages, the new device is claimed to be ideal for extending battery life and reducing heat dissipation in a variety of portable, handheld electronic devices
This article was originally published on Electronicstalk on 10 Apr 2001 at 8.00am (UK)
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The switcher also features a low quiescent current of 45uA, a standby current of only 100nA, undervoltage lockout, overtemperature and overcurrent protection and auto transition from PWM to PFM modes for lower energy use and heat dissipation, as well as longer battery life.
With an input voltage range of 2.7 to 5.5V and either an adjustable output voltage range of 0.8 to 4.5V, or a fixed output voltage range between 1.2 and 3.3V, the MCP1603 switcher can cover the entire Li-ion, Li-polymer, NiCd and NiMH voltage range.
An evaluation board (part number MCP1603EV) is available to demonstrate the use of the MCP1603 as a buck switcher.
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