MAX38913集成電路（IC）的線(xiàn)性+開(kāi)關(guān)穩(wěn)壓器規(guī)格書(shū)PDF中文資料

MAX38913屬于集成電路（IC）的線(xiàn)性+開(kāi)關(guān)穩(wěn)壓器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的MAX38913穩(wěn)壓器 - 線(xiàn)性線(xiàn)性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無(wú)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(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開(kāi)關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。

General Description

The MAX38913 is a low-noise linear regulator that

delivers up to 1A of load current with as low as 4μVRMS

of output noise. The MAX38913 can dynamically change

its output voltage between two separate levels. The

MAX38913 has the pass-through mode which, when

enabled, completely bypasses the linear regulator.

This regulator maintains ±1 output accuracy over a

wide input voltage range, temperature, and load

conditions. The no-load quiescent current in the

regulation mode is 1.37mA. During the pass-through

mode, unlike the conventional dropout mode of an LDO,

the MAX38913 consumes very little quiescent current.

The MAX38913 has a 6Ω active discharge feature to

quickly discharge output capacitors of up to 300μF.

The MAX38913 has 33 programmable output-voltage

settings for both voltage selections.

The MAX38913 is packaged in either a space-saving

12-bump WLP or a full-featured 3mm x 3mm, 14-pin

TDFN package. Optional power-OK and power-on-reset

pins are available in the 14-pin TDFN version.

Benefits and Features

? Delivers Flexible Output Range

? 1.8V to 5.5V Input Voltage Range

? 0.6V to 5.0V Output Voltage Range

? 1A Maximum Output Current

? 28mV Dropout at 1A Load Current and 5.0V Supply

? 33mV Dropout at 1A Load Current and 3.6V Supply

? Excellent DC and AC Performance

? 1 Regulation over Line, Load, and Temperature

? 4μVRMS of Output Noise, 10Hz to 100kHz

? 75dB PSRR at 10kHz

? High-Level System Integration

? Integrated Pass-Through Function

? Fast Active Discharge of 6Ω at OUT

? Dynamic Two-Level Voltage Scaling with 33

Levels for Each Option for Flexible Configuration

? Stable with 4μF (Minimum Capacitance)

? Overcurrent and Overtemperature Protection

? Power-OK/Power-on-Reset Output

? Operation Temperature Range from -40°C to +125°C

? Package

? 12-Bump, 0.4mm-Pitch WLP

? 14-Pin, 3mm x 3mm TDFN

Applications

? Image Sensors

? Portable Sensor Applications

? SD Memory Cards