Product category:
Power Supply ICs and Controllers
News Release from: Microchip Technology | Subject: TC1303/TC1304 and TC1313 series
Edited by the Electronicstalk Editorial
Team on 09 August 2005
Power management ICs combine three
functions
A new series of power management ICs combine a synchronous buck switching regulator, low dropout regulator and power-good function into single-chip solutions.
New from Microchip, the TC1303/TC1304 and TC1313 series of power management ICs combine a synchronous buck switching regulator, low dropout (LDO) regulator and power-good function into single-chip solutions All five device options include a 500mA buck regulator and a 300mA LDO
This article was originally published on Electronicstalk on 10 Apr 2001 at 8.00am (UK)
Related stories
World's first serial EEPROM supporting ACR SIG
Microchip has announced the world's first serial EEPROM supporting the Advanced Communications Riser Special Interest Group (ACR SIG) specification.
Easy interfacing to faster microcontrollers
Microchip has added two new devices to its PIC16C92X family of 8bit one-time-programmable microcontrollers with integrated liquid-crystal display controller.
The differences between the devices relate to the power-good function.
These devices provide a low-power, low-cost, minimal board space solution for a variety of battery-operated and dual output voltage systems.
The synchronous buck regulator is a very efficient switching DC/DC convertor.
Under heavier loads, the convertor operates in PWM mode at a fixed 2.0MHz switching frequency.
For lighter loads, such as in a standby mode, the convertor switches to a power-saving pulse frequency modulation (PFM) mode.
The regulator has adjustable and fixed output voltage options.
The low-noise linear LDO regulator supports up to a 300mA load with a very low dropout voltage (137mV at 200mA typical), and is stable with a single, 1.0uF ceramic capacitor on the output.
All the devices offer a number of protection features, including undervoltage lockout (UVLO), overtemperature protection and output short circuit protection.
The TC1303/TC1313 devices offer individual shutdown controls for the two regulators, whereas the TC1304 uses the power-good function together with the SHDN pin to provide a power-sequencing function (where, during power-up, the LDO must be operating within specification before the buck regulator is activated, and, during power-down, the buck regulator output is disabled prior to the LDO output).
To help demonstrate the effectiveness of these power management solutions, Microchip is offering the TC1303BDM-DDBK1 demonstration board.
All five devices are available today for sampling and volume production.
Lead (Pb) free package options include a 10-pin MSOP package and a tiny 10-pin 3 x 3mm DFN package.
• Microchip Technology: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
