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
Catcher drones to geo-fence industrial sites
November 27, 2014
Once more last October, drones were making the headlines in France, with unidentified units reportedly flying over the country's ...
Industry embraces 48V supply in the aim of bringing down emissions
ST, InvenSense X-Fab amongst MEMS award winners
Chip market for wireless sensor networks on 23% CAGR
Biometric credit card ready for mass production, says Card Tech
New class of layered materials drive PV innovations
November 27, 2014
Physicists at the University of Kansas have fabricated a substance from two different atomic sheets of a layer of graphene ...
Lauterbach, Symtavision intermesh software for better safety
Mouser launch design contest around NXP's dual PCB configurable logic
UHF could usher in 'super-Wi-Fi'
- Common Mode Rejection in Wide Input Range Op Amps
- Power Systems Design eBook
- Halogen-free options and increased performance for terminal blocks
- Wireless Power User Guide
InterviewCEO interview: Vicor powers after higher volume applications
Patrizio Vinciarelli, is one of the longest serving CEOs in electronics, having founded Vicor in 1981 and led the company ever since. At Electronica he told EE Times Europe that his company is investing ...
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, Cherry is giving away five of its Energy Harvesting Evaluation kits, worth over 266 Euros each, for EETimes Europe's readers to win. Cherry's energy harvesting technology benefit mostly applications where a complex wire assembly and/or batteries would be inappropriate.
The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted...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.