Integrated, single-chip step-down converter and load switch delivers power with protection
August 02, 2011 // Paul Buckley
Advanced Analogic Technologies, Inc., has introduced a 2.5 A output current synchronous DC/DC converter with an integrated, ±10 percent precision current limit load switch designed to safely and efficiently regulate the power in USB peripherals. Capable of supporting power levels beyond the USB 3.0 standard, the AAT2138 offers an ideal solution for a broad range of USB-powered devices including wireless modem data cards, portable hard drives or RAID systems, and card readers.
Hensen Wong, Product Marketing Manager at AnalogicTech, said: “Consequently, peripheral system designers must take great care to make sure they safely maximize the power they receive from the USB host. By offering the safety of a precision current limit switch and the 95 percent efficiency of a DC/DC converter together in a single package, the AAT2138 enables system designers to develop small form-factor, energy efficient products that never exceed the compliance of the USB power supply, even under harsh transient conditions.”
The AAT2138 delivers maximum flexibility in one of the smallest single chip solutions in the marketplace. Its broad feature set includes selectable PFM/PWM modes, an external synch clock up to 3 MHz, independent enable pins for the DC/DC converter and load switch, and adjustable output voltage and current limit. Additionally, the part is optimized for a 1 µH inductor with no external compensation required and comes in a miniature, lead-free, low profile 3 mm x 3 mm 14-pin TDFN package, making it ideal for space constrained applications.
The AAT2138 is currently shipping and is priced at $1.19 for 1K units.
Visit Advanced Analogic Technologies at www.analogictech.com
Oscilloscope engine plugs into portable Apple products
September 30, 2014
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with ...
BMW joins forces with Baidu for automated driving
Self-tuning acoustic-ready chip increases audio focus
16nm FinFETs boost ARM's 64-bit big.LITTLE
X-ray imaging reveals path to extending battery lifetimes
Electron innovation prolongs power in mobile devices
September 30, 2014
Researchers from The University of Texas at Dallas have created technology that could be the first step toward wearable computers ...
What Is Digital Power System Management?
Qualcomm increases share of smartphone processor market
Aggregating disparate data protocols from IoT
- Solutions for Millimeter Wave Wireless Backhaul
- Enter Linduino
- A Novel Approach to Industrial Rectifier Systems
- Putting FPGAs to Work in Software Radio Systems Handbook
InterviewCEO interview: AMS' Laney on driving a sensor-driven business
Kirk Laney, CEO of Austrian mixed-signal chip and sensor company AMS, wants to leverage the opportunity that technology affords to create new markets for sensors and sensor interfaces.
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, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...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.