MAX38913AANC+集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

MAX38913AANC+屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由亞德諾半導體技術(shù)有限公司制造生產(chǎn)的MAX38913AANC+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(zhuǎn)換為熱量。對于大多數(shù)應用而言，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用。

General Description

The MAX38913/MAX38914 is a low-noise linear regulator that delivers up to 1A of load current with as low as 4μVRMS of output noise. The MAX38913/MAX38914 can dynamically change its output voltage between two separate levels. The MAX38913/MAX38914 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/MAX38914 consumes very little quiescent current. The MAX38913/MAX38914 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 MAX38914 has pre-programmed output voltage levels of 2.3V and 2V.

The MAX38913/MAX38914 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 (MAX38913)

? 2V, 2.3V Pre-Programmed Voltage Levels (MAX38914)

? 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