Step-down regulators offer highest power density, efficiency in smallest package
March 08, 2011 // Paul Buckley
Texas Instruments Incorporated has introduced at the 2011 Applied Power Electronics Conference (APEC) what the company claims is the industry's smallest, most efficient step-down regulators with integrated FETs to support up to 25 A for telecommunications, networking and other applications.
The easy-to-use, 25-A, 14-V, TPS56221 synchronous SWIFT switcher with integrated NexFET MOSFETs achieves a power density greater than 200 W/in3 with greater than 90-percent efficiency at high loads from a 12-V input to a 1.3-V output, delivering up to 25 A of continuous output current at 500-kHz switching frequency. The new TPS56121 15-A, 14-V synchronous switcher is three percent more efficient at 5-V input to 1.2-V output and switches twice as fast as similar 15-A products in the market.
The TPS56221 and TPS56121 come in a thermally enhanced 5-mm x 6-mm QFN package, and achieve a total solution size of 315 mm2 - 30-percent smaller than other discrete solutions. Both devices are the first switchers to integrate TI's NexFET technology, providing increased thermal performance, protection, efficiency and reliability. The switchers offer three selectable frequencies of 300 kHz, 500 kHz and 1 MHz for design flexibility and support input voltages of 4.5 V to 14 V.
Key features and benefits of the TPS56221 and TPS56121 include:
- High-current performance and efficiency: Provides greater than 90-percent efficiency at 25-A and 15-A peak-load currents from an input voltage range from 4.5 V to 14 V
- Small size and greater power density: Total solution size of 315 mm2 minimizes footprint, while achieving a power density greater than 200W/in3
Availability and Pricing
The TPS56221 and TPS56121 come in an easy-to-solder, 22-pin, 5-mm x 6-mm QFN package with a single PowerPad thermal pad. Samples and evaluation modules are expected at the end of March 2010. Suggested resale pricing for the TPS56221 is $5.25 and the TPS56121 is $4.35 in 1,000-unit quantities.
TI's booth at APEC (#608) is hosting a live demonstration of the new device.
More information about the TPS56221 step-down regulator
Google Rolls Android M, IoT OS
May 29, 2015
Developers were audibly excited by the bevy of improvements and added features on the newest Android release, Android M. ...
Apple buys into augmented reality - for cars?
Avago / Broadcom merger to rank third largest semiconductor supplier, says IHS
Daimler takes on Tesla in the stationary battery market
Touch display provides haptic feedback
Researchers make ICs on wood
May 28, 2015
A research team at the University of Wisconsin-Madison working with the Madison-based U.S. Department of Agriculture Forest ...
Gaelectric introduces Tesla battery storage solution to Irish market
When did analog steal digital's mojo?
Ultra-low power SRAM IP available for FDSOI 28nm foundry processes
- Getting Security Right in Wireless Sensor Networks
- Four factors to avoid damaging wearable brands
- Integrating GPS into consumer products
- Controlling LED Lighting Using Triacs and Quadracs
InterviewCEO interview: What's next after Tower's turn-around?
May 2015 marks the tenth anniversary of Russell Ellwanger taking over as CEO of speciality foundry Tower Semiconductor Ltd. (Migdael Haemek, Israel), which now trades as TowerJazz. And so EE Times Europe ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
In this month's reader offer, Analog Devices is giving away five Blackfin Low-Power Imaging Platform (BLIP) Development Systems (ADZS-BF707-BLIP2), worth 199 dollars each, for EETimes Europe's readers to win.
Targeting demanding ultra-low-power, real-time applications for image sensing and advanced audio, the development platform leverages the company’s ADSP-BF707BBCZ-4 Blackfin processor as...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.