MIC5365-1.8YMT屬于集成電路（IC）的線性+開關穩(wěn)壓器。由微芯科技股份有限公司制造生產的MIC5365-1.8YMT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換為熱量。對于大多數應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

General Description

The MIC5365/6 is an advanced general purpose linear regulator offering high power supply rejection (PSRR) in an ultra-small 1mm x 1mm package. The MIC5366 includes an auto-discharge feature that is activated when the enable pin is low. The MIC5365/6 is capable of sourcing 150mA output current and offers high PSRR making it an ideal solution for any portable electronic application.

Ideal for battery-powered applications, the MIC5365/6 offers 2% initial accuracy, low dropout voltage (155mV @ 150mA), and low ground current (typically 29μA). The MIC5365/6 can also be put into a zero-off-mode current state, drawing virtually no current when disabled.

The MIC5365/6 is available in several advanced packages including a lead-free (RoHS-compliant) 1mm x 1mm Thin MLF? occupying only 1mm2 of PCB area, a 75% reduction in board area compared to SC-70 and 2mm x 2mm MLF? packages. It is also available in a thin SOT23-5 package.

The MIC5365/6 has an operating junction temperature range of –40°C to 125°C.

Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com.

特性 Features

? Tiny 1mm x 1mm thin MLF?, SC-70-5, and thin SOT23-5 packages

? Input voltage range: 2.5V to 5.5V

? 150mA guaranteed output current

? Stable with 1μF ceramic output capacitors

? Low dropout voltage – 155mV @ 150mA

? Excellent load/line transient response

? Low quiescent current – 29μA

? High PSRR – 70dB

? Output discharge circuit – MIC5366

? High output accuracy

– ±2% initial accuracy

? Thermal-shutdown and current-limit protection

Applications

? Mobile phones

? Digital cameras

? GPS, PDAs, PMP, handhelds

? Portable electronics