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MP2321

更新时间： 2024-11-05 01:18:59
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页数 文件大小 规格书
24页 4203K
描述
19V, 2A, 40uA IQ, High-Efficiency, Constant-On-Time, Step-Down Converter in a QFN (2mmx3mm) Package

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MP2321  
19V, 2A, 40µA IQ, High-Efficiency,  
Constant-On-Time, Step-Down Converter  
in a QFN (2mmx3mm) Package  
The Future of Analog IC Technology  
DESCRIPTIONꢀ  
FEATURES  
The MP2321 is a fully-integrated, high-efficiency,  
synchronous, step-down, switch-mode converter  
with 40μA of quiescent current. The MP2321  
achieves 2A of continuous output current over a  
wide input supply range with excellent load and line  
regulation and can operate with high efficiency over  
a wide output current load range. The MP2321 is  
optimized for battery-operated applications and  
applications requiring high light-load efficiency.  
4V to 19V Operating Input Range  
2A Output Current  
40μA Quiescent Current  
Output Adjustable from 0.6V  
110mΩ/40mΩ High-Side/Low-Side RDS(ON)  
for Internal Power MOSFETs  
Power Good Indicator  
Programmable Soft-Start Time  
Forced PWM or Auto PFM/PWM Mode  
Selectable  
With constant-on-time (COT) control, the MP2321  
provides very fast transient response, easy loop  
design, and very tight output regulation.  
Programmable Switching Frequency  
Thermal Shutdown  
Short-Circuit Protection: Hiccup Mode  
Available in  
Package  
Full protection features include short-circuit  
protection (SCP), over-current protection (OCP),  
under-voltage protection (UVP), and thermal  
shutdown.  
a
QFN-14 (2mmx3mm)  
The MP2321 requires a minimal number of readily  
available, standard, external components and is  
available in a space-saving QFN-14 (2mmx3mm)  
package.  
APPLICATIONS  
Tablet PCs  
Solid State Drives  
Gaming  
Battery-Operated Applications  
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.  
“MPS” and “The Future of Analog IC Technology” are registered trademarks of  
Monolithic Power Systems, Inc.  
ꢀ
TYPICAL APPLICATION  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
0.001 0.01  
0.1  
1
10  
MP2321 Rev. 1.0  
10/26/2016  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2016 MPS. All Rights Reserved.  
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