MCP1603-120I/MC

更新时间： 2024-02-16 19:00:09

品牌	Logo	应用领域
美国微芯 - MICROCHIP		稳压器
页数	文件大小	规格书
26页	758K
描述
2.0 MHz, 500 mA Synchronous Buck Regulator

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数据手册
替代型号

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MCP1603-120I/MC 数据手册

MCP1603

2.0 MHz, 500 mA Synchronous Buck Regulator

Features

General Description

• Over 90% Typical Efficiency

• Output Current Up To 500 mA

• Low Quiescent Current = 45 µA, typical

• Low Shutdown Current = 0.1 µA, typical

• Adjustable Output Voltage:

- 0.8V to 4.5V

The MCP1603 is a high efficient, fully integrated

500 mA synchronous buck regulator whose 2.7V to

5.5V input voltage range makes it ideally suited for

applications powered from 1-cell Li-Ion or 2-cell/3-cell

NiMH/NiCd batteries.

At heavy loads, the MCP1603 operates in the 2.0 MHz

fixed frequency PWM mode which provides a low

noise, low output ripple, small-size solution. When the

load is reduced to light levels, the MCP1603

automatically changes operation to a PFM mode to

minimize quiescent current draw from the battery. No

intervention is necessary for a smooth transition from

one mode to another. These two modes of operation

allow the MCP1603 to achieve the highest efficiency

over the entire operating current range.

• Fixed Output Voltage:

- 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V

• 2.0 MHz Fixed-Frequency PWM (Heavy Load)

• Automatic PWM to PFM Mode Transition

• 100% Duty Cycle Operation

• Internally Compensated

• Undervoltage Lockout (UVLO)

• Overtemperature Protection

• Space Saving Packages:

The MCP1603 is available with either an adjustable or

fixed output voltage. The available fixed output voltage

options are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. When a

fixed option is used, only three additional small external

components are needed to form a complete solution.

Couple this with the low profile, small-foot print

packages and the entire system solution is achieved

with minimal size.

- 5-Lead TSOT

- 8-Lead 2X3 DFN

Applications

• Cellular Telephones

• Portable Computers

• Organizers / PDAs

Additional protection features include: UVLO,

overtemperature, and overcurrent protection.

• USB Powered Devices

• Digital Cameras

• Portable Equipment

• +5V or +3.3V Distributed Systems

Package Types

5-Lead TSOT

8-Lead 2x3 DFN

L_X

GND

V_IN

V_FB/V_OUT

V_IN

L_X

SHDN

GND

L_X

SHDN

GND

V_IN

SHDN

V_FB/V_OUT

MCP1603

MCP1603L

DS22042A-page 1

12 3 4 5 6 7...26

中文翻译

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MCP1603-120I/MC 替代型号

型号	品牌	替代类型	描述	数据表
MCP1603T-120I/MC	MICROCHIP	完全替代	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603T-120I/OS	MICROCHIP	完全替代	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-180I/MC	MICROCHIP	类似代替	2.0 MHz, 500 mA Synchronous Buck Regulator

与MCP1603-120I/MC相关器件

型号	品牌	获取价格	描述	数据表
MCP1603-120I/OS	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-150I/MC	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-150I/OS	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-180I/MC	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-180I/OS	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-250I/MC	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-250I/OS	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-330I/MC	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-330I/OS	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603-ADJI/MC	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator

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