Datasheet > MIC94355

MIC94355

更新时间： 2024-11-22 14:54:11

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
20页	1588K
描述
The MIC943x5 Ripple Blocker? is a monolithic integrated circuit that provides low-frequency ripple

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MIC94355 数据手册

MIC94325/45/55

500 mA LDO with Ripple Blocker Technology

Features

General Description

• 1.8V to 3.6V Input Voltage Range

The MIC94325, MIC94345, and MIC94355 Ripple

Blocker™ devices are monolithic integrated circuits

that provide low-frequency ripple attenuation

(switching noise rejection) to a regulated output

voltage. This is important for applications where a

DC/DC switching converter is required to lower or raise

a battery voltage, but where switching noise cannot be

tolerated by sensitive downstream circuits such as in

RF applications. The MIC94325/45/55 maintain high

power supply ripple rejection (PSRR) with input

voltages operating near the output voltage level to

improve overall system efficiency. A low-voltage logic

enable pin facilitates ON/OFF control at typical GPIO

voltage levels.

• Active Noise Rejection over a Wide Frequency

Band

- >50dB from 10 Hz to 5 MHz at 500 mA Load

• Rated to 500 mA Output Current

• Fixed and Adjustable Output Voltages

• Optional Output Auto-Discharge when Disabled

• Current-Limit and Thermal-Limit Protection

• 1.6 mm x 1.6 mm, 6-Pin Thin DFN

• Logic-Controlled Enable Pin

• –40°C to +125°C Junction Temperature Range

Applications

The MIC94325/45/55 operate from an input voltage of

1.8V to 3.6V. Options include fixed (MIC94345/55) or

adjustable (MIC94325) output voltages. The MIC94355

version offers an auto-discharge to discharge the

output capacitor when the part is disabled.

• Smart Phones

• Tablet PC/Notebooks and Webcams

• Digital Still and Video Cameras

• Global Positioning Systems

• Mobile Computing

Packaged in a 6-pin 1.6 mm x 1.6 mm Thin DFN, the

MIC94325/45/55

have

junction

operating

• Automotive and Industrial Applications

temperature range of –40°C to +125°C.

Package Type

MIC94325/45/55

6-Lead TDFN (MT)

(Top View)

VIN

VOUT

VIN

VOUT/ADJ

GND

 2021 Microchip Technology Inc.

DS20006524A-page 1

12 3 4 5 6 7...20

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