MP2910 Datasheet: Synchronous Buck PWM DC-DC and Linear Power Controller





MP2910 Synchronous Buck PWM DC-DC and Linear Power Controller Datasheet

Part Number MP2910
Description Synchronous Buck PWM DC-DC and Linear Power Controller
Manufacture MPS
Total Page 15 Pages
PDF Download Download MP2910 Datasheet PDF

Features: The Future of Analog IC Technology DESCR IPTION The MP2910 is a dual output with one synchronous buck PWM and one linea r controller. The part is used to gener ate logicsupply voltages for PC based s ystems. MP2910 includes internal soft-s tart, frequencycompensation networks, p ower good signaling with specific seque nce, and it comes all of the logic cont rol, output adjustment, power monitorin g and protection functions into a small footprint package. The part is operate d at fixed 300 kHz frequency providing an optimum compromise between efficienc y, external component size, and cost. T he linear controller is implemented to drive an external MOSFET for regulation and it's adjustable by setting externa l resistors. Moreover the specific inte rnal PG sequence and indicator is also implemented to conform to Intel® new p latform requirement on FSB_VTT power pl ane. An adjustable overcurrent protecti on (OCP) is proposed to monitor the vol tage drop across the RDS(ON) of the lower MOSFET for synchronous.

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The Future of Analog IC Technology
DESCRIPTION
The MP2910 is a dual output with one
synchronous buck PWM and one linear
controller. The part is used to generate logic-
supply voltages for PC based systems. MP2910
includes internal soft-start, frequency-
compensation networks, power good signaling
with specific sequence, and it comes all of the
logic control, output adjustment, power
monitoring and protection functions into a small
footprint package. The part is operated at fixed
300 kHz frequency providing an optimum
compromise between efficiency, external
component size, and cost. The linear controller
is implemented to drive an external MOSFET
for regulation and it's adjustable by setting
external resistors. Moreover the specific internal
PG sequence and indicator is also implemented
to conform to Intel® new platform requirement
on FSB_VTT power plane. An adjustable over-
current protection (OCP) is proposed to monitor
the voltage drop across the RDS(ON) of the lower
MOSFET for synchronous buck PWM DC-DC
controller.
MP2910
Synchronous Buck PWM DC-DC
and Linear Power Controller
FEATURES
Operating with 5V or 12V Supply Voltage
Drives ALL Low Cost N-Channel MOSFETs
Voltage Mode PWM Control
300kHz Fixed Frequency Oscillator
Fast Transient Response:
High speed GM Amplifier
Full 0 to 100% Duty Ratio
Internal Soft-Start
Adaptive Non-Overlapping Gate Driver
Over-Current Fault Monitor on MOSFET, No
Current Sense Resistor Required
Specific Power Good Indicator for Intel®
Grantsdale FSB_VTT Power Sequence
Available in a SOIC-14 Package and a
SOIC8E Package.
APPLICATIONS
Graphic Card
Motherboard, Desktop Servers
IA Equipments
Telecomm Equipments
High Power DC-DC Regulators
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
MP2910 Rev. 1.0
12/14/2011
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
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