ISL6420BMAEP中文資料Intersil數(shù)據(jù)手冊PDF規(guī)格書

Enhanced Product (EP) Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

The ISL6420BMAEP simplifies the implementation of a complete control and protection scheme for a highperformance DC/DC buck converter. It is designed to drive N-Channel MOSFETs in a synchronous rectified buck topology, the ISL6420BMAEP integrates control, output adjustment, monitoring and protection functions into a single package. Additionally, the IC features an external reference voltage tracking mode for externally referenced buck converter applications and DDR termination supplies, as well as a voltage margining mode for system testing in networking DC/DC converter applications.

Features

? Specifications per DSCC VID V62/07640

? Full Mil-Temp Electrical Performance from -55°C to +125°C

? Controlled Baseline with One Wafer Fabrication Site and One Assembly/Test Site

? Full Homogeneous Lot Processing in Wafer Fab

? No Combination of Wafer Fabrication Lots in Assembly

? Full Traceability Through Assembly and Test by Date/Trace Code Assignment

? Enhanced Process Change Notification

? Enhanced Obsolescence Management

? Eliminates Need for Up-Screening a COTS Component

? Operates from 4.5V thru 5.5V and 5.6V thru 28V Inputs

? Excellent Output Voltage Regulation

- 0.6V Internal Reference

- ±2.0 Reference Accuracy Over Line and Temperature

? Resistor-Selectable Switching Frequency

- 100kHz to 1.4MHz

? Voltage Margining and External Reference Tracking Modes

? Output Can Sink or Source Current

? Lossless, Programmable Overcurrent Protection

- Uses Upper MOSFET’s rDS(ON)

? Programmable Soft-Start

? Drives N-Channel MOSFETs

? Simple Single-Loop Control Design

- Voltage-Mode PWM Control

? Fast Transient Response

- High-Bandwidth Error Amplifier

- Full 0 to 100 Duty Cycle

? Extensive Circuit Protection Functions

- PGOOD, Overvoltage, Overcurrent, Shutdown

? Diode Emulation during Startup for Pre-Biased Load Applications

Applications

? Power Supplies for Microprocessors/ASICs

- DSP and Core Processors

- DDR SDRAM Bus Termination

? Distributed Power Systems

? Externally Referenced Buck Converters