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MP2454

更新时间： 2024-11-11 01:14:15
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芯源 - MPS /
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19页 677K
描述
36V, 0.6A Step-Down Converter

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MP2454 数据手册

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MP2454  
36V, 0.6A  
Step-Down Converter  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2454 is a frequency-programmable  
(350kHz to 2.3MHz), step-down switching  
regulator with an integrated internal high-side,  
high-voltage power MOSFET. It outputs  
efficiently up to 0.6A and has current-mode  
control for fast loop response.  
60μA Operating Quiescent Current  
Wide 3.3V to 36V Operating Input Range  
200mΩ Internal Power MOSFET  
Up to 2.3MHz Programmable Switching  
Frequency  
Stable with Ceramic Output Capacitors  
Internal Compensation  
The wide 3.3V to 36V input range accommodates a  
variety of step-down applications in automotive-  
input environments. A 3.5μA shutdown mode  
quiescent current allows for use in battery-  
powered applications. Also, the device has a high  
duty cycle and low drop-out mode for automotive  
cold-crank conditions.  
External Soft Start  
> 90% Efficiency  
Low Dropout Operation for Cold Crank  
3.5μA Low Shutdown Supply Current  
Synchronization to External Clock  
Power Good Output  
Programmable Power Good Delay Time  
MSOP-10 EP and QFN-10 (3mm x 3mm)  
Packages  
The MP2454 achieves high-power conversion  
efficiency over a wide load range by scaling  
down the switching frequency at light-load  
conditions to reduce both switching and gate  
driving losses.  
APPLICATIONS  
High-Voltage Power Conversion  
Automotive Systems  
Industrial Power Systems  
Distributed Power Systems  
Battery Powered Systems  
Frequency foldback prevents inductor current  
runaway during start-up and short circuit.  
Thermal shutdown provides reliable, fault-tolerant  
operation. An open-drain power good (PG) signal  
indicates when the output is within its nominal  
voltage.  
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For  
MPS green status, please visit the MPS website under Quality Assurance.  
The MP2454 is available in MSOP-10 EP and  
QFN-10 (3mm x 3mm) packages.  
“MPS” and “The Future of Analog IC Technology” are registered trademarks of  
Monolithic Power Systems, Inc.  
TYPICAL APPLICATION  
Efficiency vs.  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
10  
100  
1000  
MP2454 Rev. 1.01  
9/18/2015  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2015 MPS. All Rights Reserved.  
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