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DC-DC芯片MP2145规格书
资料介绍
MP2145规格书
DC-DC芯片,比较主流的芯片,封装小,供电压范围大,易懂。
部分文件列表
文件名 | 大小 |
MP2145.pdf | 1M |
部分页面预览
(完整内容请下载后查看)MP2145
5.5V, 6A, 1.2MHz, High-Efficiency, 40μA IQ
Constant On-Time
Synchronous, Step-Down Switcher
DESCRIPTION
FEATURES
The MP2145 is a monolithic, step-down, switch-
mode converter with internal power MOSFETs. It
can achieve up to 6A continuous output current
from a 2.8V-to-5.5V input voltage with excellent
load and line regulation. The output voltage can
be regulated to as low as 0.6V.
Up to 6A Output Current
Wide 2.8V-to-5.5V Operating Input Range
20mΩ and 12mΩ Internal Power MOSFETs
40µA Quiescent Current
1.2MHz Fixed Switching Frequency
100% Duty Cycle in Dropout
1% Feedback Accuracy
Constant-on-time control provides a fast transient
response and eases loop stabilization. Fault
condition protections include cycle-by-cycle
current limiting and thermal shutdown.
External Mode Control
External VCON Control
Adjustable Output from 0.6V
1.5ms Internal SS Time with Pre-Bias Startup
Cycle-by-Cycle Over Current Protection
Short Circuit Protection with Hiccup Mode
Stable with Low-ESR Output Ceramic
Capacitors
Thermal Shutdown
Available in a 2mm×3mm QFN Package
Output Discharge Function
The MP2145 is available in a small QFN2×3mm
package and requires only a minimal number of
readily-available, standard, external components.
The MP2145 is ideal for a wide range of
applications, including storage (SSD, HDD), high-
performance DSPs, FPGAs, and distributed
power systems.
APPLICATIONS
Storage (SSD, HDD)
Portable Instruments
Battery-Powered Devices
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
L1
VIN
VOUT
0.47uH
2.8V to 5.5V
1.2V/6A
SW
VIN
C2
C3
22uF 22uF
OUT
C1
22uF
R1
200k
MP2145
EN
EN
PG
FB
R2
PG
200k
Ramp
Ramp
MODE/
VCON
MODE/
VCON
GND
MP2145 Rev. 1.11
12/20/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
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