LX8213中文資料300mA Low Noise CMOS LDO Regulator數(shù)據(jù)手冊Microchip規(guī)格書

描述 Description

The LX8213 LDO regulator is a positive voltage regulator ICs using CMOS technology. The device provides a compact and cost effective solution featuring low power consumption over a wide supply voltage range, high output voltage accuracy, low dropout, excellent line and load regulation, fast transient response, and low noise. The LX8213 operates over a wide input voltage range of 2.5V to 6V, and consumes only 60uA typical quiescent current at no load and a low 0.1uA shutdown current. Output voltage options include fixed 1.2V, 3.3V, or an adjustable output voltage which may be set from 1.2V to 5.5V. The LDO delivers up to 300mA of output current, with a foldback current limit of approximately 400mA. At 300mA load, dropout voltage measures only 170mV for a 3.3V output. Tight load and line regulation is achieved over the full output current and supply range. The high bandwidth control loop provides fast transient response to reduce output voltage deviation using low cost external ceramic capacitors in the 1uF range.The LX8213 also exhibits low output noise with only 60uVRMS over a 100kHz bandwidth. Power supply rejection exceeds 65dB at 100Hz. Other features of LX8213 include an active low shutdown input with a 3M? internal pull-down for low cost power sequencing, internal soft-start circuitry to prevent inrush current, short circuit current limit, and thermal overload protection. The LX8213 operates over -40?C to +85?C ambient temperature range and is available in a tiny 5 pin SOT-23 ROHS compliant package.

特性 Features

2.5V to 6V Wide Input Voltage Range
Fixed Output at 1.2V or 3.3V
Adjustable Output Voltage Range from 1.2V to 5.5V
Low Quiescent Current of Typical 60uA
Low Dropout Voltage of Typical 170mV at 3.3V 300mA
Stable with Low ESR 1uF Input/Output Bypass Ceramic Capacitors
Ultra Low Shutdown Current of Typical 0.1uA
Low Output Noise of Typical 60uVRMS at VOUT=1.2V
Fast Transient Response
Shutdown Control Input ? Foldback Current Limit
50mA Short Circuit Limit
Over Temperature Protection
Standard Package SOT-23
RoHS Compliant

簡介

LX8213屬于集成電路（IC）的穩(wěn)壓器-線性。由Microchip制造生產(chǎn)的LX8213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。