MP2308 Datasheet: Synchronous Step-Down Converter





MP2308 Synchronous Step-Down Converter Datasheet

Part Number MP2308
Description Synchronous Step-Down Converter
Manufacture MPS
Total Page 15 Pages
PDF Download Download MP2308 Datasheet PDF

Features: The Future of Analog IC Technology DESCR IPTION The MP2308 is a synchronous rect ified stepdown switch mode converter wi th built in internal power MOSFETs. It offers a very compact solution to achie ve 4A continuous output current over a wide input supply range with excellent load and line regulation. The MP2308 ha s synchronous mode operation for higher efficiency over output current load ra nge. Current mode operation provides fa st transient response and eases loop st abilization. Full protection features i nclude OCP and thermal shut down. The M P2308 requires a minimum number of read ily available standard external compone nts and is available in a space saving 2mm x 3mm 14-pin QFN package. MP2308 1 8V, 4A Synchronous Step-Down Coverter F EATURES  Wide 4.75V to 18V Operating Input Range  4A Output Current  Low Rds(ON) Internal Power MOSFETs  300kHz-2MHz Programmable Switching Freq uency  EN ON/OFF Control  Light L oad Mode Selectable  External Soft Start  OCP and Thermal Shutdown  Avai.

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The Future of Analog IC Technology
DESCRIPTION
The MP2308 is a synchronous rectified step-
down switch mode converter with built in
internal power MOSFETs. It offers a very
compact solution to achieve 4A continuous
output current over a wide input supply range
with excellent load and line regulation. The
MP2308 has synchronous mode operation for
higher efficiency over output current load range.
Current mode operation provides fast transient
response and eases loop stabilization. Full
protection features include OCP and thermal
shut down.
The MP2308 requires a minimum number of
readily available standard external components
and is available in a space saving 2mm x 3mm
14-pin QFN package.
MP2308
18V, 4A Synchronous
Step-Down Coverter
FEATURES
Wide 4.75V to 18V Operating Input Range
4A Output Current
Low Rds(ON) Internal Power MOSFETs
300kHz-2MHz Programmable Switching
Frequency
EN ON/OFF Control
Light Load Mode Selectable
External Soft Start
OCP and Thermal Shutdown
Available in 14-pin QFN2x3 Package
APPLICATIONS
DSL Modems
Cable Modems
Set Top Boxes
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN
4.75V to 18V
VCC
EN
FREQ
Rfreq
18.7k
U1
R5
10
IN
VCC
BST
SW
EN MP2308
AAM
FB
FREQ
GND
SS
CSS
22nF
VOUT
3.3V
100
95
R1
31.6k
90
85
80
R2 7 5
10k
70
0.001 0.01
0.1
1 10
MP2308 Rev. 1.0
7/9/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
1

                    
                    






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