MAX8654ETX集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

General Description

The MAX8654 high-efficiency switching regulator delivers up to 8A of load current at output voltages from 0.6V to 0.85 x VIN. The IC operates from 4.5V to 14V, making it ideal for on-board point-of-load and postregulation applications, with total output error less than ±1 over load, line, and temperature ranges.

The MAX8654 is a fixed-frequency PWM mode regulator with a switching frequency range of 250kHz to 1.2MHz set by an external resistor or SYNC input. High-frequency operation allows for an all-ceramic-capacitor solution. A SYNCOUT output is provided to synchronize a second regulator switching 180° out-of-phase with the first to reduce the input ripple current and consequently reduce the required input capacitance. The high operating frequency minimizes the size of external components.

The on-board low RDS(ON) dual-nMOS design keeps the board cooler at heavy loads while minimizing the critical inductances, making the layout a much simpler task with respect to the discrete solutions.

Features

? Internal 26m? RDS(ON) MOSFETs

? Guaranteed 8A Output Current

? Adjustable Overcurrent Protection

? 1 Output Accuracy Over Temperature

? Operates from 4.5V to 14V Supply

? Adjustable Output from 0.6V to 0.85 x VIN

? Soft-Start Reduces Inrush Supply Current

? 250kHz to 1.2MHz Adjustable Switching or SYNC Input

? Compatible with Ceramic, Polymer, and

?? Electrolytic Output Capacitors

? SYNCOUT Synchronizes 2nd Regulator 180° Out-of-Phase

? 36-Pin, Lead-Free, 6mm x 6mm TQFN Package

Applications

?? POL Power Supplies

?? Servers

?? DDR Memory

?? RAID Power Supplies

?? Network Power Supplies

?? Graphic Cards