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San
Jose, Calif. - March 29, 2005
- Summit
Microelectronics has
announced two new devices in a
growing family of award-winning
Programmable Power Manager (PPM)
integrated circuits (ICs). The
SMB111
and SMB112
continue to expand Summit's
system-level power supply
offerings, delivering
unparalleled flexibility and ease
of implementation to system
design engineers. Using Summit's
PPM IC's, system designers can
digitally program the entire
multiple output power supply and
associated power management
functions with a few clicks of a
mouse compared to the tedious
iterative hardware design of
conventional analog power
solutions.
Incorporating a level of
programmability, integration and
precision previously missing in
power management offerings, the
SMB111 and SMB112 integrate
precise power delivery and power
control in a single device. In
addition to simplifying the power
supply design, Summit's
configurable technology creates a
"power system platform" that
allows a significant degree of
hardware re-use. Original
equipment and original design
manufacturers (OEMs and ODMs) can
reduce their development time and
engineering investment and bring
consumer products to market
faster and more reliably.
The SMB111 four-channel and
SMB112 five-channel PPM IC's are
optimized for increasingly
complex consumer electronics
applications such as LCD/TFT
TVs/monitors, digital
cameras/camcorders (DSC/DCC),
DVD/MP3 portable media
players/recorders, global
positioning (GPS) receivers,
personal digital assistants
(PDAs), digital set-top boxes
(STB) and digital video recorders
(DVRs) as well as 3G "smart"
mobile phones.
"The SMB111 and SMB112, based on
the award winning SMB120, further
expand Summit's Programmable
Power Manager family," stated
Abid Hussain, Summit director of
marketing. "These new products
demonstrate Summit's continued
commitment to easing the burden
on today's power supply
designers, allowing them to
choose from a range of standard
products to address virtually any
complex power supply
challenge."
The SMB111 comprises four
channels of power conversion:
three pulse-width modulated (PWM)
DC-DC step-down (buck)
converters, and one PWM DC-DC
step-up (boost) converter. The
SMB112 offers five channels: two
PWM DC-DC step-up (boost)
converters, one PWM DC-DC
step-down (buck) converter, one
PWM DC-DC inverting step-up/down
(buck/boost) converter, and one
low-dropout (LDO) linear
regulator. The PWM channels on
both devices are digitally
programmable for output
characteristics and monitoring,
including voltage output levels
to +/- 0.5% accuracy. Each array
of converters is well suited to
powering components commonly
found in digital consumer
electronics such as LCD-TFT
displays, LED backlighting, DSPs,
Codecs, embedded CPUs, CCD
imagers, motor drives and memory
arrays. The outputs are easily
scalable for output current due
to external MOSFET switches,
further enhancing the flexibility
for various system
requirements.
Complementing the precise power
regulation is a suite of advanced
power control features including
static or dynamic output voltage
programming and margining,
independent channel
sequencing/enable, and output
slew rate control. Additionally,
the devices provide complete
power system diagnostics,
including input and output
monitoring for under/over-voltage
(UV/OV), low/missing battery
detection, AC adapter detection
and RESET/HEALTHY output. The
margining function can be
conveniently used as an LED
backlight brightness or
audio-level control. The flexible
control capability also enables
more sophisticated power
management algorithms to boost
power efficiency and battery
lifetime in an increasingly
mobile product mix.
Programming is achieved via the
convenient I2C bus and
configuration data is safely
stored in non-volatile EEPROM
memory of which 96 bytes are
available for user data storage.
The devices can be programmed
during development and then used
in a "fixed" configuration or
they may be re-programmed
in-system via the I2C
interface.
Packaging, Pricing, and
Availability
The SMB111 and SMB112 operate
directly from +2.7V to +6.0V
input, making it ideally suited
for one-cell Li-Ion battery
applications. Higher input
voltages (two-cell Li-Ion or
+12V) can be accommodated in many
cases with simple applications
configuration. The operating
temperature range is +0C to +70C
and packaging is the 5mm X 5mm
32-pad QFN-32 that is lead-free
and RoHS-standard compliant.
Available now in production
quantities, the SMB111 and SMB112
are both priced at $2.60 each in
quantities of 1,000 units.
Design Software and Programmer
for Prototype Development
To speed user product
development, Summit offers
customers the SMB111EV
and
SBM112EV
companion evaluation boards
providing a graphic user
interface (GUI) software so
designers can quickly see the
features and benefits and design
a prototype power supply with the
SMB111 or SMB112. This is a
complete development tool that
lets designers easily manipulate
the characteristics of their
systems. The SMB111EV and
SMB112EV design kits includes
menu-driven Microsoft
Windows® graphic user
interface (GUI) software to
automate programming tasks and
also includes all necessary
hardware to interface to the
parallel or USB port of a laptop
or PC.
Once a user completes design and
prototyping, the SMB111EV and
SMB112EV kits automatically
generate a HEX data file that can
be transmitted to Summit for
review and approval. Summit then
assigns a unique customer
identification code to the HEX
file and programs the customer's
production devices prior to final
electrical test operations. This
ensures that the device will
operate properly in the end
application. The design kit
software can be downloaded today
from Summit's website
(www.summitmicro.com).
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About
Summit Microelectronics --
"Programmable analog for a
digital world".
Summit
Microelectronics supplies
semiconductors that manage and
provide power functions in
networking/communications,
storage/computing, industrial,
military, and consumer products.
Customers can very rapidly tailor
Summit's programmable analog
technology to multiple
applications by programming the
same part.
Founded in 1997, Summit is
headquartered in San Jose,
California. The Company is ISO
9001 certified.
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