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MP1482 PDF预览

MP1482

更新时间: 2024-01-26 22:08:39
品牌 Logo 应用领域
芯源 - MPS 转换器
页数 文件大小 规格书
12页 291K
描述
2A, 18V Synchronous Rectified Step-Down Converter

MP1482 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:SOIC
包装说明:SOIC-8针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.18
其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 0.923 TO 15V模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE最大输入电压:18 V
最小输入电压:4.75 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8长度:4.9 mm
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:3.4 A封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1.75 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:340 kHz温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

MP1482 数据手册

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MP1482 – 2A, 18V SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER  
PIN FUNCTIONS  
SOIC8  
Pin #  
Name Description  
High-Side Gate Drive Boost Input. BS supplies the drive for the high-side N-Channel MOSFET  
switch. Connect a 0.01μF or greater capacitor from SW to BS to power the high side switch.  
1
BS  
IN  
Power Input. IN supplies the power to the IC, as well as the step-down converter switches.  
Drive IN with a 4.75V to 18V power source. Bypass IN to GND with a suitably large capacitor to  
eliminate noise on the input to the IC. See Input Capacitor.  
2
Power Switching Output. SW is the switching node that supplies power to the output. Connect  
3
4
5
SW the output LC filter from SW to the output load. Note that a capacitor is required from SW to BS  
to power the high-side switch.  
GND Ground.  
Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB with a resistive  
FB  
voltage divider from the output voltage. The feedback threshold is 0.923V. See Setting the  
Output Voltage.  
Compensation Node. COMP is used to compensate the regulation control loop. Connect a  
series RC network from COMP to GND to compensate the regulation control loop. In some  
cases, an additional capacitor from COMP to GND is required. See Compensation  
Components.  
6
COMP  
Enable Input. EN is a digital input that turns the regulator on or off. Drive EN high to turn on the  
regulator, drive it low to turn it off. Pull up with 100kresistor for automatic startup.  
7
8
EN  
SS  
Soft-Start Control Input. SS controls the soft start period. Connect a capacitor from SS to GND  
to set the soft-start period. A 0.1μF capacitor sets the soft-start period to 15ms. To disable the  
soft-start feature, leave SS unconnected.  
MP1482 Rev. 1.31  
7/9/2012  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2012 MPS. All Rights Reserved.  
4

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