Datasheet > XAL1010-152MEB

XAL1010-152MEB

更新时间： 2024-09-16 12:01:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		控制器
页数	文件大小	规格书
44页	899K
描述
High-Speed Synchronous Buck Controller

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XAL1010-152MEB 数据手册

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. 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. Further more, 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.

• Fixed Switching Frequency (f_SW): 300 kHz

• Integrated Synchronous MOSFET Drivers

• Multiple Dead-Time Options

• Internal Blocking Device for Bootstrap Circuit

• Integrated Current Sense Capability for Short

Circuit Protection

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.

• Internal Overtemperature Protection

• Under Voltage Lockout (UVLO)

• Integrated Linear Voltage Regulator

• 10-LD 3 X 3 mm DFN Package

The SHDN input is used to turn the device on and off.

While turned off, the current consumption is minimized.

The MCP19035 offers

a Power Good feature

(PWRGD), enabling fault detection and simplifying

sequencing.

Applications

• Point of Loads

Package Types

• Set-Top Boxes

• DSL Cable Modems

• FPGA’s/DSP’s Power Supply

• PC’s Graphic/Audio Cards

MCP19035

3x3 DFN*

SHDN

HDRV

PHASE

COMP

V_IN

BOOT

LDRV

+V_CC

PWRGD

* Includes Exposed Thermal Pad (EP); see Table 3-1.

 2012 Microchip Technology Inc.

DS22326A-page 1

12 3 4 5 6 7...44

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