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FEATURES
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Digital
programming
of all
major
parameters
via
I2C
interface
and
non-volatile
memory |
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- Output voltage set point |
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- Output power-up/down sequencing |
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- Input/Battery voltage monitoring |
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- Digital soft-start and output slew rate |
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- Output voltage margining |
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- UV/OV monitoring of all outputs |
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- Enable/Disable outputs independently |
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Five output channels |
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- Two synchronous step-down (buck) channels |
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- One step-up (boost) channel |
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- One inverting (buck-boost) channel |
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- One fixed output +3.3V LDO |
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User friendly Graphical User Interface (GUI) |
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+2.7V
to
+6.0V
Input
Range
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Highly
accurate
reference
and
output
voltage
(<0.5%)
with
Active
DC
Output
Control
(ADOC™)
technology |
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Undervoltage
Lockout
(UVLO)
with
hysteresis |
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800
kHz
operating
frequency |
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96
bytes
of
user
configurable
nonvolatile
memory |
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APPLICATIONS
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Digital
camcorders/still
cameras
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Portable
DVD/MP3/GPS
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Camera/smart
phones
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TFT
Displays/Monitors/TV's
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Mobile
Computing/PDA's
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Consumer
battery-operated
equipment
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• SMB113A/SMB117-High-power, Four-channel Programmable DC-DC System Power Managers |
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SMB110-
Five
Channel Programmable DC-DC System Power
Manager
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INTRODUCTION
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The
SMB110 is a
highly
integrated and
flexible
five-channel
power manager
designed for
use in a wide
range of
portable
applications.
The built-in
digital
programmability
allows system
designers to
custom tailor
the device to
suit almost any
multichannel
power supply
application
from digital
camcorders to
mobile phones.
Complete with a
user friendly
GUI, all
programmable
settings
including
output voltages
and
input/output
voltage
monitoring can
be customized
with ease.
The SMB110
integrates all
the essential
blocks required
to implement a
complete
five-channel
power subsystem
including two
synchronous
step-down
"buck"
controllers,
one step-up
"boost"
controller, one
inverting
"buck-boost"
controller and
one fixed
output +3.3V
LDO.
Additionally
sophisticated
power
control/monitoring
functions
required by
complex systems
are built-in.
These include
digitally
programmable
output voltage
set point,
power-up/down
sequencing,
enable/disable,
margining and
UV/OV/input/output
monitoring on
all channels.
The integration
of features and
built-in
flexibility of
the SMB110
allows the
system designer
to create a
"platform
solution" that
can be easily
modified via
software
without major
hardware
changes.
Combined with
the
re-programmability
of the SMB110
this
facilitates
rapid design
cycles and
proliferation
from a base
design to
future
generations of
product.
The SMB110 is
suited to
battery-powered
applications
with an input
range of +2.7V
to +6.0V.
Output voltages
are extremely
accurate
(<0.5%)
employing
proprietary
ADOCTM
technology.
Communication
is via the
industry
standard I 2C
bus. All
userprogrammed
settings are
stored in
non-volatile
EEPROM of which
96 bytes may be
used for
general-purpose
memory
applications.
The operating
temperature
range is +0C to
+70C and the
available
package is a
lead-free,
Green, RoHS
compliant,
32-pad
QFN-32.
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Figure
1 - Applications
diagram featuring the
SMB110 five-channel,
programmable DC-DC
converter
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Note:
This is an applications
example only. Some pins,
components and values
are not shown.
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