MP29296 Datasheet: Step-Down Converter





MP29296 Step-Down Converter Datasheet

Part Number MP29296
Description Step-Down Converter
Manufacture MPS
Total Page 10 Pages
PDF Download Download MP29296 Datasheet PDF

Features: The Future of Analog IC Technology DESC RIPTION The MP29296 is a monolithic syn chronous buck regulator. The device int egrates 130mΩ MOSFETS that provide 2A continuous load current over a wide op erating input voltage of 4.75V to 23V. Current mode control provides fast tran sient response and cycle-by-cycle curre nt limit. An adjustable soft-start pre vents inrush current at turn-on. Shutdo wn mode drops the supply current to 1µ A. This device, available in an 8-pin S OIC package, provides a very compact sy stem solution with minimal reliance on external components. EVALUATION BOARD REFERENCE Board Number EV29296DS-00A Dimensions 2.0”X x 1.5”Y x 0.5”Z MP29296 2A, 23V Synchronous Rectified Step-Down Converter FEATURES • 2A Out put Current • Wide 4.75V to 23V Opera ting Input Range • Integrated 130mΩ Power MOSFET Switches • Output Adjus table from 0.923V to 20V • Up to 93% Efficiency • Programmable Soft-Start • Stable with Low ESR Ceramic Output Capacitors • Fixed 340KHz Frequency • Cycle-by-Cy.

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The Future of Analog IC Technology
DESCRIPTION
The MP29296 is a monolithic synchronous buck
regulator. The device integrates 130m
MOSFETS that provide 2A continuous load
current over a wide operating input voltage of
4.75V to 23V. Current mode control provides
fast transient response and cycle-by-cycle
current limit.
An adjustable soft-start prevents inrush current
at turn-on. Shutdown mode drops the supply
current to 1µA.
This device, available in an 8-pin SOIC
package, provides a very compact system
solution with minimal reliance on external
components.
EVALUATION BOARD REFERENCE
Board Number
EV29296DS-00A
Dimensions
2.0”X x 1.5”Y x 0.5”Z
MP29296
2A, 23V Synchronous Rectified
Step-Down Converter
FEATURES
2A Output Current
Wide 4.75V to 23V Operating Input Range
Integrated 130mPower MOSFET Switches
Output Adjustable from 0.923V to 20V
Up to 93% Efficiency
Programmable Soft-Start
Stable with Low ESR Ceramic Output Capacitors
Fixed 340KHz Frequency
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
APPLICATIONS
Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/ Appliances
Notebook Computers
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
INPUT
4.75V to 23V
C5
10nF
21
7 IN
EN
BS 3
SW
8
SS
MP29296
5
FB
GND
COMP
46
C3
3.3nF
OUTPUT
3.3V
2A
Efficiency vs
Load Current
100
95 VOUT = 3.3V
90
85 VOUT = 2.5V
80
75
70
65
60
55
50
0
0.5 1.0 1.5 2.0
LOAD CURRENT (A)
2.5
MP29296 Rev. 1.7
2/5/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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