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MP28310

更新时间： 2024-04-09 19:02:35
品牌 Logo 应用领域
芯源 - MPS 稳压器
页数 文件大小 规格书
22页 1635K
描述
集成 300nA 静态电流（IQ）、2V 至 5.5V、100mA 低压差线性稳压器的 300mA、2V 至 5.5V、500nA静态电流（IQ）降压变换器，采用 CSP-12（1.2mmx1.6mm）封装

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MP28310 数据手册

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MP28310  
DESCRIPTION  
FEATURES  
The MP28310 is  
a
monolithic power  
300mA Buck Converter  
management unit containing a 300mA, high-  
efficiency, switching step-down converter and a  
100mA low-dropout (LDO) regulator. The ultra-  
low 500nA quiescent current (IQ) provides  
extremely high efficiency when the load current  
is within the µA range. The MP28310’s low 2V  
minimum input voltage allows the system to  
operate directly from the battery.  
o Ultra-Low 500nA Quiescent Current (IQ)  
o Wide 2V to 5.5V Operating Input Range  
o 7 Selectable Output Voltages  
o Up to 300mA of Output Current  
o 1.5MHz Switching Frequency in  
Continuous Conduction Mode (CCM)  
o 100% Duty Cycle in Low-Dropout Mode  
o 0.25Ω and 0.25Ω Internal Power  
MOSFET Switches  
o Cycle-by-Cycle Over-Current Protection  
(OCP)  
o Short-Circuit Protection (SCP) with  
Hiccup Mode  
Constant-on-time (COT) control provides fast  
transient response and high light-load efficiency,  
and requires minimal capacitance. Good  
regulation is achieved by integrating an error  
amplifier (EA) to correct the output voltage  
(VOUT).  
100mA LDO  
o Ultra-Low 300nA IQ  
The 100mA LDO regulator provides easy system  
configuration and a clean VOUT. The control  
(CTRL) pins control the on/off and VOUT selection  
functions.  
o 2V to 5.5V Operating Input Range  
o 3 Selectable Output Voltages  
o Over-Temperature Protection (OTP)  
Available in a CSP-12 (1.2mmx1.6mm)  
Package  
Fault protection features include under-voltage  
lockout (UVLO), over-current protection (OCP),  
and thermal shutdown.  
APPLICATIONS  
Wearables  
The MP28310 requires a minimal number of  
readily available, standard external components,  
Internet of Things (IoT)  
Portable Instruments  
Battery-Powered Devices  
and is available in  
(1.2mmx1.6mm) package.  
a
small CSP-12  
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”, the MPS logo, and “Simple, Easy Solutions” are  
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.  
TYPICAL APPLICATION  
VOUT1  
1.8V/300mA  
=
Efficiency vs. Load Current  
VOUT = 1.8V  
VIN1 = 3.6V  
L1  
2.2µH  
VIN1  
SW1  
CIN1  
COUT1  
10µF  
10µF  
OUT1  
CTRL1  
CTRL2  
CTRL3  
PG1  
MP28310GC  
VOUT2  
1.8V/100mA  
=
VIN2 = 3.6V  
VIN2  
OUT2  
CIN2  
1µF  
COUT2  
1µF  
CTRL4  
CTRL5  
GND  
MP28310 Rev. 1.0  
12/23/2020  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2020 MPS. All Rights Reserved.  
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