Step-down supply reduces switching noise by 99 percent
April 04, 2012 // Paul Buckley
Texas Instruments Incorporated (TI) has introduced a new class of voltage regulators designed to deliver the industry’s lowest-noise 1-A switching power supply without sacrificing efficiency and power performance.
The TPS54120, the first in the company’s family of QuietSupply regulators, reduces switching noise by up to 99 percent, compared to other power conversion devices, and helps maximize the performance of precision data converters and amplifiers and sensitive clock distribution circuits used in applications, such as telecommunications, test equipment, and high-end audio and video equipment.
The TPS54120 offers 99-percent noise reduction: 9 µVRMS at 100 Hz to 100 kHz, and 17 µVRMS at 100 Hz to 1 MHz.
The device features a high power supply rejection ratio (PSRR) of 83 db at 10 kHz, 70 dB at 100 kHz and is synchronizable to an external clock from 200 kHz to 1.2 MHz. The TPS54120 has a wide input voltage range of 4.5 V to 17 V, adjustable output of 0.8 V to 6.0 V.
The TPS54120 is available in volume now from TI and its authorized distributors in a thermally enhanced 4-mm x 4-mm, 20-pin QFN or TSSOP package, and has a suggested resale price of $1.95 each in 1,000-unit quantities. The easy-to-use TPS54120EVM-103 contains all of the external components required for a low noise, 1-A solution with internal thermal and current limit shutdowns, power good output monitor, tracking and enabling/disabling circuitry.
Xray sensor startup raises funds
May 27, 2015
MultiX SA (Paris, France), a company developing sensors for spectroscopic Xray imaging for airport security and non-destructive ...
IoT is driving an analog opportunity
Implanted biosensor can be wirelessly charged
Pushing emulation beyond functional tests
Sensor choices power industrial Internet innovation
Software collaboration enables software quality compliance
May 26, 2015
Lauterbach's TRACE32 debug solution has been integrated with test automation platform VectorCAST to enable development, test, ...
Why NOW is the time to invest in security
eDP: the next rung on display control's evolutionary ladder
Daimler, Qualcomm announce strategic partnership
- Integrating GPS into consumer products
- Controlling LED Lighting Using Triacs and Quadracs
- Automotive Designs Demand Low EMI Synchronous Buck Converters
- Smart Capacitive Design Tips
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.