MIC94310-4YM5-TR屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由微芯科技股份有限公司制造生產(chǎn)的MIC94310-4YM5-TR穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應(yīng)用。

General Description

The MIC94310 Ripple Blocker? is a monolithic

integrated circuit that provides 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 MIC94310 maintains

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.

The MIC94310 operates from an input voltage of 1.8V

to 3.6V.

Packaged in a 4-pin 1.2 mm × 1.6 mm TDFN, a 5-pin

SOT-23, or a 0.88 mm × 0.88 mm 4-Ball WLCSP, the

MIC94310 has a junction operating temperature range of -40°C to +125°C.

特性 Features

? 1.8V to 3.6V Input Voltage Range

? Active Noise Rejection Over a Wide Frequency

Band: >50 dB from 10 Hz to 10 MHz at 200 mA

Load

? Rated to 200 mA Output Current

? Fixed Output Voltages

? Current-Limit and Thermal-Limit Protected

? 1.2 mm x 1.6 mm 4-Pin TDFN

? 5-Pin SOT-23

? Ultra-Small 0.88 mm x 0.88 mm WLCSP

? Logic-Controlled Enable Pin

? -40°C to +125°C Junction Temperature Range

Applications

? Smartphones/Smart Books

? Tablet PC/Notebooks and Webcams

? Digital Still and Video Cameras

? Global Positioning Systems

? Mobile Computing

? Automotive and Industrial Applications