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
Porsche connects infotainment to cloud with HTML5
April 16, 2014
For some time, HTML5 is regarded as a kind of Swiss Army knife for automotive infotainment developers. Car manufacturer Porsche ...
Anglia signs with DEM Manufacturing
RFMW Ltd to distribute Aviacommís transceivers
Sensors, actuators market on 11% CAGR to 2018
Additional conference complements Sensor + Test trade fair
End of Windows XP boosted 1Q14 PC sales, says Gartner
April 15, 2014
The long-running decline of the desktop and notebook PC market, as consumers tend to buy and use lighter, more mobile, tablet ...
Global HB LED market set to shine by 2018
Chinese smartphone maker undercuts western companies
Materials interfaces pave way to solar cell gains
- USB 5V 2.5A Output, 42V Input Synchronous Buck with Cable Drop Compensation
- Measurement applications across multiple test platforms
- Supplying DC input power to string inverters
- Supplying DC input power for HEV testing
InterviewHeartbleed challenges the Internet of Thing
The Heartbleed security bug is a key example of the fundamental security challenge for the Internet of Things says Green Hills Software as it launches a new security group.
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
This month, Arrow Electronics is giving away ten XMC1200 lighting application kits, worth 100 Euros each, for EETimes Europe's readers to win.
Each kit combines Infineon’s brightness and colour control XMC1200 CPU board to drive flicker free LED dimming and colour changing, together with a colour LED card and a white LED card.
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.