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MCP19035T-AAAAE/MF PDF预览

MCP19035T-AAAAE/MF

更新时间: 2024-10-02 00:55:39
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美国微芯 - MICROCHIP /
页数 文件大小 规格书
44页 933K
描述
High-Speed Synchronous Buck Controller

MCP19035T-AAAAE/MF 数据手册

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MCP19035  
High-Speed Synchronous Buck Controller  
Features:  
General Description  
• Input Voltage Range: from 4.5V to 30V  
The MCP19035 is an application-optimized, high-  
speed synchronous buck controller that operates from  
input voltage sources up to 30V. This controller  
implements a voltage-mode control architecture with a  
fixed switching frequency of 300 kHz or 600 kHz. The  
high-switching frequency facilitates the use of smaller  
passive components, including the inductor and  
input/output capacitors, allowing a compact, high-  
performance power supply solution. The MCP19035  
implements an adaptive anti-cross conduction scheme  
to prevent shoot-through in the external power  
MOSFETs. Furthermore, the MCP19035 offers multiple  
dead-time options, enabling an additional degree of  
optimization, allowing a higher efficiency power supply  
design.  
Targeted for Low-Voltage Power Trains with  
Output Current up to 20A  
• High-Speed Voltage Mode, Analog Pulse-Width  
Modulation Control  
• Power Good Output  
• Internal Oscillator, Reference Voltage and  
Overcurrent Limit Threshold for Stand-Alone  
Applications.  
• Multiple Switching Frequency Options (FSW):  
- 300 kHz  
- 600 kHz  
• Integrated Synchronous MOSFET Drivers  
• Multiple Dead-Time Options  
• Internal Blocking Device for Bootstrap Circuit  
The MCP19035 controller is intended to be used for  
applications providing up to 20A of output currents  
across a wide input voltage range, up to 30V.  
• Integrated Current Sense Capability for Short  
Circuit Protection  
The SHDN input is used to turn the device on and off.  
While turned off, the current consumption is minimized.  
• Internal Overtemperature Protection  
• Under Voltage Lockout (UVLO)  
• Integrated Linear Voltage Regulator  
• 10-LD 3 X 3 mm DFN Package  
The MCP19035 offers  
a Power Good feature  
(PWRGD), enabling fault detection and simplifying  
sequencing.  
Applications:  
Package Types  
• Point of Loads  
MCP19035  
3x3 DFN*  
• Set-Top Boxes  
• DSL Cable Modems  
• FPGA’s/DSP’s Power Supply  
• PC’s Graphic/Audio Cards  
SHDN  
FB  
HDRV  
1
2
10  
9
PHASE  
EP  
11  
COMP  
VIN  
BOOT  
LDRV  
+VCC  
3
4
5
8
7
6
PWRGD  
* Includes Exposed Thermal Pad (EP); see Table 3-1.  
2012-2013 Microchip Technology Inc.  
DS22326B-page 1  

MCP19035T-AAAAE/MF 替代型号

型号 品牌 替代类型 描述 数据表
MCP19035-AAAAE/MF MICROCHIP

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High-Speed Synchronous Buck Controller

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