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ISL65426MREP PDF预览

ISL65426MREP

更新时间: 2024-10-26 03:48:27
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英特矽尔 - INTERSIL 稳压器开关
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3页 67K
描述
Enhanced Product (EP) 6.0A Dual Synchronous Buck Regulator with Integrated MOSFETs

ISL65426MREP 数据手册

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ISL65426MREP  
®
Data Sheet  
October 29, 2007  
FN6575.0  
Enhanced Product (EP) 6.0A Dual  
Synchronous Buck Regulator with  
Integrated MOSFETs  
Features  
• Specifications per DSCC VID V62/07639  
• Full Mil-Temp Electrical Performance from -55°C to +125°C  
The ISL65426MREP is a high efficiency dual output  
• Controlled Baseline with One Wafer Fabrication Site and  
One Assembly/Test Site  
monolithic synchronous buck converter operating over an  
input voltage range of 2.5V to 5.5V. This single chip power  
solution provides two output voltages which are selectable or  
externally adjustable from 1.2V to 80% of the supply voltage  
while delivering up to 6.0A of total combined output current  
• Full Homogeneous Lot Processing in Wafer Fab  
• Current Density Validated per MIL-PRF-38535  
• Full Traceability Through Assembly and Test by  
Date/Trace Code Assignment  
when used at T of +125°C or less. The two PWMs are  
J
synchronized 180° out of phase reducing the RMS input  
current and ripple voltage.  
• Enhanced Process Change Notification  
• Enhanced Obsolescence Management  
• Eliminates Need for Up-Screening a COTS Component  
• High Efficiency of up to 90%  
The ISL65426MREP switches at a fixed frequency of 1MHz  
and utilizes current-mode control with integrated  
compensation to minimize the size and number of external  
components. The internal synchronous power switches are  
optimized for good thermal performance, high efficiency,  
and eliminate the need for an external Schottky diode.  
• Fixed Frequency: 1MHz  
• Operates From 2.5V to 5.5V Supply  
• ±2.0% Reference  
A unique power block architecture allows partitioning to  
support one of four configuration options. One master  
power block is associated with each synchronous converter  
channel. Four floating slave power blocks allow the user to  
assign them to either channel. Proper external  
configuration of the power blocks is verified internally prior  
to soft-start initialization.  
• Flexible Output Voltage Options  
- Programmable 2-Bit VID Input  
- Adjustable Output From 1.2V to 4.0V  
• Power Blocks are Rated at:  
- 1A typ for T < +125°C and VIN Range 4.0V to 5.5V  
J
- 0.7A typ for T < +125°C and VIN Range 2.5V to 5.5V  
J
Independent enable inputs allow for synchronization or  
sequencing soft-start intervals of the two converter  
channels. A third enable input allows additional sequencing  
for multi-input bias supply designs. Individual power good  
indicators (PG1, PG2) signal when output voltage is within  
regulation window.  
• Ultra-Compact DC/DC Converter Design  
• PWMs Synchronized 180° Out of Phase  
• Independent Enable Inputs and System Enable  
• Independent Output Digital Soft-Start  
• Power Good Output Voltage Monitor  
The ISL65426MREP integrates protection for both  
• Short-Circuit and Thermal-Overload Protection  
• Overcurrent and Undervoltage Protection  
synchronous buck regulator channels. The fault conditions  
include overcurrent, undervoltage, and IC thermal monitor.  
High integration contained in a thin Quad Flat No-lead  
(QFN) package makes the ISL65426MREP an ideal choice  
to power many of today’s small form factor applications. A  
single chip solution for large scale digital ICs, like field  
programmable gate arrays (FPGA), requiring separate core  
and I/O voltages.  
Applications  
• FPGA, CPLD, DSP, and CPU Core and I/O Voltages  
• Point-of-Load Regulation in Distributed Power Systems  
Ordering Information  
VENDOR PART  
NUMBER  
(Notes 1, 2)  
TEMP.  
RANGE  
(°C)  
Device Information  
VENDOR ITEM  
DRAWING  
PKG.  
PACKAGE DWG. #  
The specifications for an Enhanced Product (EP) device are  
defined in a Vendor Item Drawing (VID), which is controlled  
by the Defense Supply Center in Columbus (DSCC). “Hot-  
links” to the applicable VID and other supporting application  
information are provided on our website.  
ISL65426MREP V62/07639-01XB -55 to +125 50 Ld 5x10 L50.5x10  
QFN  
NOTES:  
1. Add -TK suffix for 1000 piece tape and reel. Please refer to TB347 for  
details on reel specifications.  
2. Devices must be procured to the VENDOR PART NUMBER.  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2007. All Rights Reserved  
All other trademarks mentioned are the property of their respective owners.  

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