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| MP28313 Datasheet, PDF (1/11 Pages) Monolithic Power Systems – 2A, 16V, 340KHz Synchronous Rectified Step-Down Converter | |||
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The Future of Analog IC Technology
MP28313
2A, 16V, 340KHz Synchronous Rectified
Step-Down Converter
DESCRIPTION
The MP28313 is a monolithic synchronous buck
regulator. The device integrates 130mâ¦
MOSFETS that provide 2A continuous load
current over a wide operating input voltage of
5V to 16V. 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.
FEATURES
⢠2A Output Current
⢠Wide 5V to 16V Operating Input Range
⢠Integrated 130m⦠Power MOSFET Switches
⢠Output Adjustable from 0.923V to 13V
⢠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
âMPSâ and âThe Future of Analog IC Technologyâ are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
INPUT
5V to 16V
C5
10nF
2
1
7
IN
EN
BS 3
SW
MP28313
8 SS
FB 5
GND
COMP
4
6
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 2.5
LOAD CURRENT (A)
MP28313_EC01
MP28313 Rev. 1.5
www.MonolithicPower.com
1
9/27/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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