Datasheet > MCP1602

MCP1602

更新时间： 2024-09-25 11:05:47

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	445K
描述
2.0 MHz, 500 mA Synchronous Buck Regulator with Power-Good

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中文翻译

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MCP1602 数据手册

MCP1602

2.0 MHz, 500 mA Synchronous Buck Regulator

with Power-Good

Features

General Description

• Over 90% Typical Efficiency

• Output Current: Up To 500 mA

• Power-Good Output with 262 ms Delay

• Low Quiescent Current: 45 µA (typical)

• Low Shutdown Current: 0.05 µA (typical)

• Automatic PWM to PFM Mode Transition

• Adjustable Output Voltage:

- 0.8V to 4.5V

The MCP1602 is a high efficient, fully integrated

500 mA synchronous buck regulator with a power-

good monitor. The 2.7V to 5.5V input voltage range and

low quiescent current (45 µA, typical) makes the

MCP1602 ideally suited for applications powered from

1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries.

At heavy loads, the MCP1602 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 MCP1602

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 MCP1602 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)

• Internally Compensated

• Undervoltage Lockout (UVLO)

• Overtemperture Protection

• Overcurrent Protection

The open-drain power-good feature of the MCP1602

monitors the output voltage and provides indication

when the output voltage is within 94% (typical) of the

regulation value. The typical 2% hystereses in the

• Space Saving Packages:

- 8-Lead MSOP

- 8-Lead 3x3 DFN

power-good transition threshold as well as

262 ms (typical) delay time ensures accurate power-

good signaling.

Applications

• Cellular Telephones

• Portable Computers

• Organizers / PDAs

The MCP1602 is available in either the 8-pin DFN or

MSOP package. It is also 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.

• USB Powered Devices

• Digital Cameras

Additional protection features include: UVLO,

overtemperature, and overcurrent protection.

• Portable Equipment

• +5V or +3.3V Distributed Systems

Package Types

MSOP-8

3x3 DFN-8

P_GND

SHDN

V_CC

SHDN

V_CC

P_GND

L_X

V_IN

V_OUT/V_FB

A_GND

A_GNDV_OUT/V_FB

DS22061A-page 1

12 3 4 5 6 7...26

中文翻译

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与MCP1602相关器件

型号	品牌	获取价格	描述	数据表
MCP1602-120I/MS	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
MCP1602-150I/MF	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 3 MM, 0.90 MM HEIGHT, P
MCP1602-150I/MS	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
MCP1602-180I/MF	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 3 MM, 0.90 MM HEIGHT, P
MCP1602-180I/MS	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
MCP1602-250I/MF	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 3 MM, 0.90 MM HEIGHT, P
MCP1602-250I/MS	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
MCP1602-330I/MS	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
MCP1602-ADJI/MS	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8
MCP1603	MICROCHIP	获取价格	2.0 MHz, 500 mA Synchronous Buck Regulator

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