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MPQ4432-AEC1

更新时间： 2024-10-01 17:01:35
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
38页 2936K
描述
汽车级.36V,2.2A低静态电流同步降压变换器，采用侧面镀锡封装

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MPQ4432-AEC1 数据手册

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MPQ4432  
36V, 2.2A, Low Quiescent Current,  
Synchronous, Step-Down Converter  
AEC-Q100 Qualified  
DESCRIPTION  
FEATURES  
The MPQ4432 is a synchronous, step-down,  
Wide 3.3V to 36V Operating Input Range  
2.2A Continuous Output Current  
1μA Low Shutdown Mode Current  
10μA Sleep Mode Quiescent Current  
Internal 90mΩ High-Side and 40mΩ Low-  
Side MOSFETs  
switching  
regulator  
with  
programmable  
frequency (350kHz to 2.5MHz) and integrated,  
internal, high-side and low-side power  
MOSFETs. The MPQ4432 provides up to 2.2A  
of highly efficient output current with current  
mode control for fast loop response.  
350kHz to 2.5MHz Programmable Switching  
Frequency  
The wide 3.3V to 36V input range  
Fixed Output Options: 3.3V, 3.8V, 5V  
Synchronize to External Clock, Selectable  
In-Phase or 180° Out-of-Phase  
Power Good Indicator  
Programmable Soft-Start Time  
80ns Minimum On Time  
Selectable Forced CCM or AAM  
Low Dropout Mode  
Over-Current Protection (OCP) with Valley-  
Current Detection and Hiccup  
Available in a QFN-16 (3mmx4mm)  
Package  
accommodates  
a
variety of step-down  
applications in automotive input environments.  
The MPQ4432 is ideal for battery-powered  
applications due to its extremely low quiescent  
current.  
The  
MPQ4432  
employs  
advanced  
asynchronous mode (AAM) to achieve high  
efficiency in light-load condition by scaling down  
the switching frequency to reduce switching and  
gate driving losses.  
Standard features include soft start, external  
clock synchronization, enable control, and power  
good indication. High-duty cycle and low dropout  
mode are provided for automotive cold-crank.  
Available in Wettable Flank  
Available in AEC-Q100 Grade 1  
APPLICATIONS  
Over-current protection (OCP) with valley-  
current detection is employed to prevent the  
inductor current from running away. Hiccup  
mode reduces the average current greatly in  
short-circuit condition. Thermal shutdown  
provides reliable and fault-tolerant operation.  
Automotive Systems  
Industrial Power Systems  
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.  
The MPQ4432 is available in a QFN-16  
(3mmx4mm) package.  
TYPICAL APPLICATION  
VIN  
VIN  
VIN  
VIN  
BST  
EN  
SYNC  
BST  
EN  
SYNC  
VOUT  
VOUT  
SW  
SW  
MPQ4432  
MPQ4432  
PHASE  
PHASE  
GND  
GND  
FREQ  
FREQ  
FB  
FB  
PG  
SS  
PG  
SS  
VCC  
BIAS  
VCC  
BIAS  
Output Adjustable Version  
Output Fixed Version  
MPQ4432 Rev. 1.1  
5/28/2020  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2020 MPS. All Rights Reserved.  
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