MP2305DS-LF-Z Datasheet, PDF (1/11 Pages) MPS Industries, Inc. – 2A, 23V Synchronous Rectified Step-Down Converter

The Future of Analog IC Technology
DESCRIPTION
The MP2305 is a monolithic synchronous buck
regulator. The device integrates 130mΩ
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
EV2305DS-00A
Dimensions
2.0”X x 1.5”Y x 0.5”Z
MP2305
2A, 23V Synchronous Rectified
Step-Down Converter
FEATURES
• 2A Output Current
• Wide 4.75V to 23V Operating Input Range
• Integrated 130mΩ Power 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
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
C5
10nF
2
1
IN
7
EN
BS ₃
SW
MP2305
8 _SS
FB ⁵
GND
COMP
4
6
Efficiency vs
Load Current
100
95
V_OUT = 3.3V
90
85
V_OUT = 2.5V
80
75
70
65
60
55
50
0 0.5 1.0 1.5 2.0 2.5
LOAD CURRENT (A)
MP2305-EC01
MP2305 Rev. 1.83
www.MonolithicPower.com
1
12/24/2013
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© 2013 MPS. All Rights Reserved.