MCP1612

更新时间： 2024-09-28 04:40:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		稳压器
页数	文件大小	规格书
22页	301K
描述
Single 1A, 1.4 MHz Synchronous Buck Regulator

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MCP1612 数据手册

MCP1612

Single 1A, 1.4 MHz Synchronous Buck Regulator

Features

Description

• Fixed Switching Frequency: 1.4 MHz

The MCP1612 is a 1A, 1.4 MHz, fully-integrated,

current mode-controlled, synchronous buck regulator.

The MCP1612 is packaged in the 8-pin MSOP and

space-saving, 3x3 DFN packages. The DFN package

also provides a lower thermal resistance package

option for high-power, high ambient temperature

applications. With an input operating range from 2.7V

to 5.5V, the MCP1612 is ideal for applications that are

NiCd or alkaline sources.

• Input Operating Voltage Range: 2.7V to 5.5V

• Integrated Buck and Synchronous Switches

• Adjustable-Output Voltage Range: 0.8V to 5.0V

• 100% Duty Cycle Capable for Low Input Voltage

• Continuous Output Current Capability: 1A

• Shutdown Control with I_Q< 0.01 µA (Typ.)

• Integrated Soft-Start Feature

• Integrated Undervoltage Lockout (UVLO)

Protection

The output voltage of the MCP1612 is easily set over

the range of 0.8V to 5.0V by using an external resistor

divider. The external inductor and output capacitor size

are minimized due to an internally-fixed, 1.4 MHz clock

being used to set the switching frequency. The fixed

clock allows for continuous, fixed-frequency PWM

operation over the full load range.

• Integrated Overtemperature Protection

• Fast Dynamic Response to Line and Load Steps

• Small, 8-Pin DFN and MSOP Packages

• Operating Temperature Range: -40°C to +85°C

Applications

The MCP1612 is designed to provide fast dynamic

response to sudden changes in input voltage and load

current to minimize the necessary amount of external

output capacitance.

• Network Interface Cards

• Portable Computers

• Set-Top Boxes

• DSL Modems and Routers

• USB-Powered Devices

• GBIC Modules

The MCP1612 can be used with ceramic, tantalum or

aluminum electrolytic output capacitors. Ceramic

capacitors with values as low as 4.7 µF can be used to

keep the output ripple voltage low. For applications that

require better load step performance, the value of the

output capacitor can be increased to 47 µF.

• High-Speed Data System Bus Termination

• Medical Instruments

• Cellular/GSM/PHS Phones

• +5V or +3.3V Distributed Voltages

Additional features integrated into the MCP1612

include shutdown capability, soft-start, UVLO,

overcurrent and overtemperature protection.

Package Types

8-Lead DFN

8-Lead MSOP

GND

SHDN 3

COMP

GND

COMP

DS21921B-page 1

12 3 4 5 6 7...22

中文翻译

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与MCP1612相关器件

型号	品牌	获取价格	描述	数据表
MCP1612_13	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612-ADJI/MS	MICROCHIP	获取价格	2.3 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MO-187, MSOP-8
MCP1612-ADJIMF	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612-ADJIMS	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612-I/MF	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612-I/MS	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612T	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612T-ADJI	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator
MCP1612T-ADJI/MF	MICROCHIP	获取价格	2.3 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, DSO8, 3 X 3 MM, 0.90 MM HEIGHT, MO
MCP1612T-ADJIMF	MICROCHIP	获取价格	Single 1A, 1.4 MHz Synchronous Buck Regulator

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