SANTA CLARA, Calif.,
Aug. 2, 2011 /PRNewswire/ -- Advanced
Analogic Technologies, Inc. (AnalogicTech™) (Nasdaq: AATI), an
analog semiconductor company focused on powering innovative
solutions in consumer, industrial, and communications markets,
today introduced the AAT2138, a 2.5A 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.
(Logo:
http://photos.prnewswire.com/prnh/20050829/SFTU089LOGO)
"USB 3.0, with its higher power capability, is enabling a host
of peripheral devices that can run off USB power and do not require
an AC/DC adapter," said Hensen Wong,
Product Marketing Manager at AnalogicTech. "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
3MHz, 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 tiny 1uH inductor with no
external compensation required and comes in a miniature, lead-free,
low profile 3mm x 3mm 14-pin TDFN package, making it ideal for
space constrained applications.
The AAT2138 is currently shipping and is priced at US$1.19 @1K units. For other quantities, contact
AnalogicTech or its distributors.
Key Features:
- Input Voltage Range: 2.7V to 5.5 V
- Output Voltage Range: Down to 3.0V
- Low Quiescent Current:Iq=90uA (typ.)
- Current-Limited System Load Switch
- Adjustable Current Limit Range: 500mA to 3A
- 1.5ms (typ.) Soft Start
- +/-10% High Precision Current Limit
- High-Current Step-Down Regulator
- Efficiency up to 95%
- 85mOhm High-Side/50mOhm Low-Side FETs
- 2.8MHz (typ.) Switching Frequency
- 100% Low Dropout Operation.
- No External Compensation Required
- PFM/PWM or forced PWM Operation Mode
- Supports a 1MHz to 3MHz External Clock
- Optimized for small 1uH inductor
- 1ms (typ.)Soft Start
- Independent Enable Pins
- Over-Temperature and Over Load Protection
- -40 degrees C to +85 degrees C Temperature Range
- Pb-Free, Low-Profile, 3mmx3mm 14-pin TDFN Package
Related Links:
SuperSpeed USB from the USB-IF
USB SuperSpeed-Enabled Device Shipments to Approach 80 Million in
2011
AnalogicTech's DC/DC Converters (Switching Regulators)
AnalogicTech's Step Down Converters
About Advanced Analogic Technologies, Inc.:
Advanced Analogic Technologies, Inc. (AnalogicTech™) (NASDAQ:
AATI) develops advanced semiconductor system solutions that play a
key role in the continuing evolution of feature-rich, energy
efficient electronic devices. The company focuses on addressing the
application-specific power management needs of consumer devices
such as mobile handsets, digital cameras, and netbooks/notebooks,
as well as devices in a broad range of industrial, medical and
telecom applications. AnalogicTech also licenses device, process,
package, and application-related technologies. Headquartered in
Silicon Valley, AnalogicTech has design centers in Santa Clara and Shanghai, and Asia-based operations and logistics. For more
information, please visit www.analogictech.com (AnalogicTech -
G).
The AnalogicTech logo is a registered trademark of Advanced
Analogic Technologies, Inc. AnalogicTech is a trademark of Advanced
Analogic Technologies, Inc. All other brand and product names
appearing in this document are registered trademarks or trademarks
of their respective holders.
SOURCE Advanced Analogic Technologies, Inc.