MP2467 Datasheet, PDF (1/17 Pages) Monolithic Power Systems – 2.5A, 36V, 500kHz Step-Down Converter

The Future of Analog IC Technology
DESCRIPTION
The MP2467 is a high frequency step-down
switching regulator with integrated internal
high-side, high voltage power MOSFET. It
provides 2.5A output with current mode control
for fast loop response and easy compensation.
The wide 6V to 36V input range accommodates
a variety of step-down applications, including
those in automotive systems. A 100µA
operational quiescent current allows use in
battery-powered applications.
High power conversion efficiency over a wide
load range is achieved by scaling down the
switching frequency at light load condition to
reduce the switching and gate driving losses.
The frequency foldback prevents inductor
current runaway during startup and thermal
shutdown provides reliable, fault tolerant
operation.
The MP2467 is available in thermally enhanced
SOIC8 package.
EVALUATION BOARD REFERENCE
Board Number
Dimensions
EV2467DN-00A
1.8”X x 1.8”Y x 0.4”Z
MP2467
2.5A, 36V, 500kHz
Step-Down Converter
FEATURES
• 100µA Quiescent Current
• Wide 6V to 36V Operating Input Range
• 150mΩ Internal Power MOSFET
• 500kHz Fixed Switching Frequency
• Ceramic Capacitor Stable
• Internal Soft-Start
• Precision Current Limit without a Current
Sensing Resistor
• Up to 95% Efficiency
• Output Adjustable from 0.8V to 30V
• Available in SOIC8 with Exposed Pad
Packages
APPLICATIONS
• Game Machines
• Automotive Systems
• Industrial Power Systems
• Distributed Power Systems
• Printer Systems
• Battery Powered Systems
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
C4
100nF
8
VIN
7
VIN
BST
SW ¹
EN
2
EN
FB ⁴
MP2467
6
RSET
COMP ³
GND
5
D1
C3
220pF
C6
NS
VOUT
3.3V
Efficiency vs.
Load Current
100
90
80
70
V_IN=12V _VIN=24V
60
50
40
30
0
V_OUT=3.3V
0.5 1.0 1.5 2.0 2.5
LOAD CURRENT (A)
MP2467 Rev. 1.1
www.MonolithicPower.com
1
1/25/2010
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