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MP2159A

更新时间： 2024-11-15 01:16:07
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芯源 - MPS /
页数 文件大小 规格书
15页 459K
描述
1 A, 6 V, 1.5 MHz, Low IQ, COT Synchronous Step-Down Converter in 8-pin TSOT23

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MP2159A 数据手册

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MP2159A  
1 A, 6 V, 1.5 MHz, Low IQ, COT  
Synchronous Step-Down Converter  
in 8-pin TSOT23  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2159A is a monolithic step-down,  
switch-mode converter with built-in power  
MOSFETs. It achieves a 1 A continuous output  
current from a 2.5 V to 6 V input voltage range  
with excellent load and line regulation. The  
output voltage can be regulated as low as  
0.6 V.  
Very Low IQ: 17 μA  
Default 1.5 MHz Switching Frequency  
1.5% VFB Accuracy  
EN and Power Good for Power Sequencing  
Wide 2.5 V to 6 V Operating Input Range  
Output Adjustable from 0.6 V  
Up to 1 A Output Current  
100% Duty Cycle in Dropout  
120 mΩ and 90 mΩ Internal Power  
MOSFET Switches  
The constant-on-time (COT) control scheme  
provides fast transient response and eases loop  
stabilization. Fault condition protection includes  
cycle-by-cycle current limiting and thermal  
shutdown.  
Cycle-by-Cycle Over-Current Protection  
Short-Circuit Protection with Hiccup Mode  
Stable with Low ESR Output Ceramic  
Capacitors  
The MP2159A is available in a small TSOT23-8  
package and requires a minimum number of  
Available in a TSOT23-8 Package  
readily  
available,  
standard,  
external  
components.  
APPLICATIONS  
The MP2159A is ideal for a wide range of  
applications including high-performance DSPs,  
FPGAs, PDAs, and portable instruments.  
Wireless/Networking Cards  
Portable Instruments  
Battery Powered Devices  
Low Voltage I/O System Power  
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  
1 H  
2.5V to 6V  
1.2V/ 1A  
SW  
VIN  
C1  
10 F  
OUT  
C2  
10 F  
R1  
200k  
MP2159A  
EN  
PG  
EN  
PG  
FB  
R2  
200k  
AGND PGND  
MP2159A Rev. 1.02  
6/30/2016  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2016 MPS. All Rights Reserved.  
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