Datasheet > MCP1825

MCP1825

更新时间： 2024-11-23 11:05:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		稳压器
页数	文件大小	规格书
38页	631K
描述
500 mA, Low Voltage, Low Quiescent Current LDO Regulator

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MCP1825 数据手册

MCP1825/MCP1825S

500 mA, Low Voltage, Low Quiescent Current LDO Regulator

Features

Description

• 500 mA Output Current Capability

The MCP1825/MCP1825S is a 500 mA Low Dropout

(LDO) linear regulator that provides high current and

low output voltages. The MCP1825 comes in a fixed or

adjustable output voltage version, with an output

voltage range of 0.8V to 5.0V. The 500 mA output

current capability, combined with the low output voltage

capability, make the MCP1825 a good choice for new

sub-1.8V output voltage LDO applications that have

high current demands. The MCP1825S is a 3-pin fixed

voltage version.

• Input Operating Voltage Range: 2.1V to 6.0V

• Adjustable Output Voltage Range: 0.8V to 5.0V

(MCP1825 only)

• Standard Fixed Output Voltages:

- 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V

• Other Fixed Output Voltage Options Available

Upon Request

• Low Dropout Voltage: 210 mV Typical at 500 mA

• Typical Output Voltage Tolerance: 0.5%

• Stable with 1.0 µF Ceramic Output Capacitor

• Fast response to Load Transients

The MCP1825/MCP1825S is stable using ceramic

output capacitors that inherently provide lower output

noise and reduce the size and cost of the entire

regulator solution. Only 1 µF of output capacitance is

needed to stabilize the LDO.

• Low Supply Current: 120 µA (typical)

• Low Shutdown Supply Current: 0.1 µA (typical)

(MCP1825 only)

Using CMOS construction, the quiescent current

consumed by the MCP1825/MCP1825S is typically

less than 120 µA over the entire input voltage range,

making it attractive for portable computing applications

that demand high output current. The MCP1825

versions have a Shutdown (SHDN) pin. When shut

down, the quiescent current is reduced to less than

0.1 µA.

• Fixed Delay on Power Good Output

(MCP1825 only)

• Short Circuit Current Limiting and

Overtemperature Protection

• TO-263-5 (DDPAK-5), TO-220-5, SOT-223-5

Package Options (MCP1825).

• TO-263-3 (DDPAK-3), TO-220-3, SOT-223-3

Package Options (MCP1825S).

On the MCP1825 fixed output versions, the scaled-

down output voltage is internally monitored and a

power good (PWRGD) output is provided when the

output is within 92% of regulation (typical). The

PWRGD delay is internally fixed at 110 µs (typical).

Applications

• High-Speed Driver Chipset Power

• Networking Backplane Cards

• Notebook Computers

The overtemperature and short circuit current-limiting

provide additional protection for the LDO during system

fault conditions.

• Network Interface Cards

• Palmtop Computers

• 2.5V to 1.XV Regulators

DS22056B-page 1

12 3 4 5 6 7...38

中文翻译

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与MCP1825相关器件

型号	品牌	获取价格	描述	数据表
MCP1825-0802E/AB	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-0802E/AT	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-0802E/DB	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-0802E/DC	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-0802E/EB	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-0802E/ET	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-1202E/AB	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-1202E/AT	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-1202E/DB	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator
MCP1825-1202E/DC	MICROCHIP	获取价格	500 mA, Low Voltage, Low Quiescent Current LDO Regulator

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