MIC5166集成电路（IC）的电源管理-专用规格书PDF中文资料

MIC5166属于集成电路（IC）的电源管理-专用。由美国微芯科技公司制造生产的MIC5166电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。

特性 Features

• Operating Voltage Range:

- VDDQ Supply: 0.9V to 3.6V

- Bias Supply: 2.5V to 5.5V

• High Bandwidth: Very Fast Transient Response

• Stable with Two 10 µF Ceramic Output Capacitors

• Two 10 µF Output Capacitors used in Most

Applications

• High Output Voltage Accuracy:

- 0.015% Line Regulation

- 1.5% Load Regulation

• Logic Level Enable Input

• Power Good (PG)

• Thermally Enhanced 3 mm x 3 mm DFN

• Junction Temperature Range –40°C to +125°C

• This Device Meets DDR4 Requirements

Applications

• Desktop Computers

• Notebook Computers

• Datacom Systems

• Servers

• Video Cards

General Description

The MIC5166 is a 3A, high-speed, linear, low VIN,

double data rate (DDR), memory terminator power

supply. The part is small and requires small output

capacitors, making it a tiny overall solution. This allows

it to be conveniently placed close to the DDR memory,

minimizing circuit board layout inductance that may

cause excessive voltage ripple at the DDR memory.

The MIC5166 contains a precision voltage divider

network in order to take in the VDDQ voltage as a

reference voltage and conveniently output the

terminator voltage (VTT) at one half of the VDDQ input

voltage.

The MIC5166 is capable of sinking and sourcing up to

3A. It is stable with only two 10 µF ceramic output

capacitors. The part is available in a small 3 mm x

3 mm DFN thermally-enhanced package.

The MIC5166 has a high-side NMOS output stage

offering very low output impedance, and very high

bandwidth. The NMOS output stage offers a unique

ability to respond very quickly to sudden load changes

such as is required for DDR memory termination power

supply applications.