Datasheet > MIC47100

MIC47100

更新时间： 2023-12-06 20:06:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
13页	728K
描述
The MIC47100 is a high speed, low VIN LDO capable of delivering up to 1A and designed to take ad

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MIC47100 数据手册

MIC47100

1A High Speed Low VIN LDO

General Description

Features

The MIC47100 is a high speed, Low V_INLDO capable of

delivering up to 1A and designed to take advantage of

point of load applications that use multiple supply rails to

generate a low voltage, high current power supply. The

MIC47100 is stable with only a 1µF ceramic output

capacitor and is available in a thermally enhanced

2mm × 2mm MLF^®package thus making it an optimal

solution for board-constrained applications.

• Operating voltage range:

- Input Supply: 1.0V to 3.6V

- Bias Supply: 2.3V to 5.5V

• 0.8V to 2.0V output voltage range

• High bandwidth – very fast transient response

• PSRR >50dB at 100kHz

• Stable with a 1µF ceramic output capacitor

• Low dropout voltage of 80mV at 1A

• High output voltage accuracy:

- +/- 1.5% initial accuracy

The MIC47100 has an NMOS output stage offering very

low output impedance. The NMOS output stage offers a

unique ability to respond very quickly to sudden load

changes such as that required by a microprocessor, DSP

or FPGA. The MIC47100 consumes little quiescent

current and therefore can be used for driving the core

voltages of mobile processors, post regulating a core

DC/DC converter in any portable device.

- +/- 2% over temperature

• Logic level enable input

• UVLO on both supply voltages for easy turn-on

• ePad MSOP-8 – small form factor power package

The MIC47100 is available in fixed and adjustable output

voltages in the exposed pad MSOP-8 package and the tiny

2mm × 2mm MLF^®package with an operating junction

temperature range of -40°C to +125°C.

• Thermally enhanced 2mm × 2mm MLF^®– smallest

solution

Applications:

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Point of Load

• PDAs

• DSP, PLD and FPGA Power Supply

• Low Voltage Post Regulation

___________________________________________________________________________________________________________

Typical Application

MicroLead Frame and MLF are registered trademark of Amkor Technology

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-092908-B

September 2008

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