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ISL9440AIRZ-T7

更新时间： 2024-11-24 14:51:39
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
20页 1097K
描述
SWITCHING CONTROLLER

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ISL9440AIRZ-T7 技术参数

是否Rohs认证：符合生命周期：Transferred
包装说明：,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.72Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLERJESD-609代码：e3
湿度敏感等级：3端子面层：Matte Tin (Sn) - annealed
Base Number Matches：1

ISL9440AIRZ-T7 数据手册

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ISL9440, ISL9440A, ISL9441  
Data Sheet  
February 9, 2015  
FN6383.2  
Triple, 180° Out-of-Phase, Step-Down  
PWM and Single Linear Controller  
Features  
• Three integrated synchronous buck PWM controllers  
- Internal bootstrap diodes  
The ISL9440, ISL9440A and ISL9441 are quad-output  
synchronous buck controllers that integrate 3 PWM  
- Internal compensation  
controllers and 1 low drop-out linear regulator controller, which  
are full featured and designed to provide multi-rail power for  
use in products such as cable and satellite set-top boxes,  
VoIP gateways, cable modems, and other home connectivity  
products as well as a variety of industrial and general purpose  
applications. Each output is adjustable down to 0.8V. The  
PWMs are synchronized at 180° out of phase thus reducing  
the RMS input current and ripple voltage.  
- Internal soft-start  
• Independent control for each regulator and programmable  
output voltages; independent enable/shutdown  
• Fixed Switching Frequency: 300kHz (ISL9440, ISL9441);  
600kHz (ISL9440A)  
• Adaptive shoot through protection on all synchronous  
buck controllers  
The ISL9440, ISL9440A and ISL9441 offer internal soft-start,  
independent enable inputs for ease of supply rail  
• Independently programmable voltage outputs  
• Out-of-phase switching to reduce input capacitance  
(0°/180°/0°)  
sequencing, and integrated UV/OV/OC/OT protections in a  
space conscious 5mmx5mm QFN package. The ISL9440  
and ISL9440A offers an early warning function to output a  
logic signal to warn the system to back up data when the  
input voltage falls below a certain level.  
• No external current sense resistor  
- Uses lower MOSFET’s rDS(ON)  
• Current mode controller with voltage feed forward  
The ISL9440, ISL9440A and ISL9441 are utilize internal loop  
compensation to keep minimum peripheral components for  
compact design and a low total solution cost. These devices  
are implemented with current mode control with feed forward  
to cover various applications even with fixed internal  
compensations.  
• Complete protection  
- Overcurrent, overvoltage, undervoltage lockout,  
over-temperature  
• Cycle-by-cycle current limiting  
• Wide input voltage range  
- Input rail powers VIN Pin: 5.6V to 24V  
The table below shows the difference in terms of the  
ISL9440, ISL9440A and ISL9441 features.  
- Input rail powers VCC_5V Pin (VIN tied to VCC_5V, for  
5V input applications): 4.5V to 5.6V  
PART  
NUMBER  
EARLY  
WARNING  
SWITCHING FREQUENCY  
(kHz)  
• Early warning (ISL9440, ISL9440A) on input voltage  
failure  
ISL9440  
YES  
YES  
NO  
300  
600  
300  
• Integrated reset function (ISL9440, ISL9440A)  
• Pb-free (RoHS compliant)  
ISL9440A  
ISL9441  
Applications  
• Satellite and cable set-top boxes  
• Cable modems  
• VoX gateway devices  
• NAS/SAN devices  
Related Literature  
• Technical Brief TB389 “PCB Land Pattern Design and  
Surface Mount Guidelines for QFN (MLFP) Packages”  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2007, 2015. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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ISL9440CIRZ RENESAS

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 		0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLA

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