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| 型号： | ISL6326CRZ |
| 厂商： | Intersil |
| 文件页数： | 1/30页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 40-QFN |
| 标准包装： | 50 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 275kHz |
| 占空比： | 25% |
| 电源电压： | 4.75 V ~ 5.25 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 40-VFQFN 裸露焊盘 |
| 包装： | 管件 |
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ISL6326
Data Sheet
May 5, 2008
FN9262.1
4-Phase PWM Controller with 8-Bit DAC
Code Capable of Precision DCR
Differential Current Sensing
The ISL6326 controls microprocessor core voltage regulation
by driving up to 4 synchronous-rectified buck channels in
parallel. Multiphase buck converter architecture uses
interleaved timing to multiply channel ripple frequency and
reduce input and output ripple currents. Lower ripple results in
fewer components, lower component cost, reduced power
dissipation, and smaller implementation area.
Microprocessor loads can generate load transients with
extremely fast edge rates. The ISL6326 utilizes Intersil’s
proprietary Active Pulse Positioning (APP) and Adaptive
Phase Alignment (APA) modulation scheme to achieve the
extremely fast transient response with fewer output capacitors.
Today’s microprocessors require a tightly regulated output
voltage position versus load current (droop). The ISL6326
senses the output current continuously by utilizing patented
techniques to measure the voltage across the dedicated
current sense resistor or the DCR of the output inductor.
Current sensing provides the needed signals for precision
droop, channel-current balancing, and overcurrent
protection. A programmable integrated temperature
compensation function is implemented to effectively
compensate for the temperature coefficient of the current
sense element. The current limit function provides the
overcurrent protection for the individual phase.
A unity gain, differential amplifier is provided for remote
voltage sensing. Any potential difference between remote
and local grounds can be completely eliminated using the
Features
? Proprietary Active Pulse Positioning and Adaptive Phase
Alignment Modulation Scheme
? Precision Multiphase Core Voltage Regulation
- Differential Remote Voltage Sensing
- ±0.5% System Accuracy Over Life, Load, Line and
Temperature
- Adjustable Precision Reference-Voltage Offset
? Precision Resistor or DCR Current Sensing
- Accurate Load-Line Programming
- Accurate Channel-Current Balancing
- Differential Current Sense
? Microprocessor Voltage Identification Input
- Dynamic VID? Technology
- 8-Bit VID Input with Selectable VR11 Code and
Extended VR10 Code at 6.25mV Per Bit
? Thermal Monitoring
? Integrated Programmable Temperature Compensation
? Overcurrent Protection and Channel Current Limit
? Overvoltage Protection
? 2-, 3- or 4-Phase Operation
? Adjustable Switching Frequency up to 1MHz Per Phase
? Package Option
- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad
Flat No Leads - Product Outline
- QFN Near Chip Scale Package Footprint; Improves
PCB Efficiency, Thinner in Profile
remote-sense amplifier. Eliminating ground differences
improves regulation and protection accuracy. The threshold-
?
Pb-Free (RoHS Compliant)
sensitive enable input is available to accurately coordinate
the start up of the ISL6326 with any other voltage rail.
Dynamic-VID? technology allows seamless on-the-fly VID
Ordering Information
PART
changes. The offset pin allows accurate voltage offset
settings that are independent of VID setting.
NUMBER
(Note)
PART
MARKING
TEMP.
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL6326CRZ*
ISL6326CRZ
0 to+70
40 Ld 6x6 QFN L40.6x6
ISL6326IRZ*
ISL6326IRZ
-40 to +85 40 Ld 6x6 QFN L40.6x6
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets; molding compounds/die attach
materials and 100% matte tin plate PLUS ANNEAL - e3 termination
finish, which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006-2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6326CRZ-T | 功能描述:电流型 PWM 控制器 W/ANNEAL 4-PHS VR11 CNTRLR COM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6326CRZ-TR5453 | 制造商:Intersil Corporation 功能描述:STD. ISL6326CRZ-T W/GOLD BOND WIRE ONLY - Tape and Reel |
| ISL6326IRZ | 功能描述:电流型 PWM 控制器 W/ANNEAL 4-PHS VR11 CNTRLR IND RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6326IRZ-T | 功能描述:电流型 PWM 控制器 W/ANNEAL 4-PHS VR11 CNTRLR IND RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6327ACRZ | 功能描述:IC REG CTRLR BUCK PWM 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
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