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ISL6307ACRZ Datasheet

  • ISL6307ACRZ

  • Ultra-high bandwidth 6-Phase PWM Controller with 8 Bit VID C...

  • 966.92KB

  • 33頁

  • INTERSIL   INTERSIL

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ISL6307A
Data Sheet
February 6, 200
6
FN9236.0
Ultra-high bandwidth 6-Phase PWM
Controller with 8 Bit VID Code Capable of
Precision R
DS(ON)
or DCR Differential
Current Sensing
The ISL6307A controls microprocessor core voltage
regulation by driving up to 6 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 ISL6307A features a high
bandwidth control loop and ripple frequencies up to 12MHz
to provide optimal response to the transients.
The ISL6307A senses current by utilizing patented
techniques to measure the voltage across the on resistance,
R
DS(ON)
, of the lower MOSFETs or DCR, of the output
inductor during the lower MOSFET conduction intervals.
Current sensing provides the needed signals for precision
droop, channel-current balancing, and overcurrent
protection. A programmable internal temperature
compensation function is implemented to effectively
compensate for the temperature coefficient of the current
sense element.
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
remote-sense amplifier. Eliminating ground differences
improves regulation and protection accuracy. The threshold-
sensitive enable input is available to accurately coordinate
the start up of the ISL6307A with any other voltage rail.
Dynamic-VID鈩?technology allows seamless on-the-fly VID
changes. The offset pin allows accurate voltage offset
settings that are independent of VID setting.
Features
鈥?Precision Multiphase Core Voltage Regulation
- Differential Remote Voltage Sensing
-
鹵0.5%
System Accuracy Over Life, Load, Line and
Temperature
- Adjustable Precision Reference-Voltage Offset
鈥?Precision R
DS(ON)
or DCR Current Sensing
- Accurate Load-Line Programming
- Accurate Channel-Current Balancing
- Differential Current Sense
鈥?Microprocessor Voltage Identification Input
- Dynamic VID鈩?Technology
- 8-Bit VID Icode with 6.25mV step
- 0.5V to 1.600V operation range
鈥?Threshold-Sensitive Enable Function for Power
Sequencing and VTT Enable
鈥?Driver enable output for application with DrMOS device
鈥?Thermal Monitoring
鈥?Programmable Temperature Compensation
鈥?Overcurrent Protection
鈥?Overvoltage Protection with OVP Output Indication
鈥?2, 3, 4, 5 or 6 Phase Operation
鈥?Adjustable Switching Frequency up to 2MHz per Phase
鈥?QFN 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
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP.
(擄C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL6307ACRZ ISL6307ACRZ
ISL6307AIRZ
ISL6307AIRZ
0 to 70 48 Ld 7x7 QFN L48.7x7
-40 to 85 48 Ld 7x7 QFN L48.7x7
*Add 鈥?T鈥?suffix to part number for tape and reel packaging.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100% matte
tin plate termination finish, which are 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.
Dynamic VID鈩?is a trademark of Intersil Americas Inc. Copyright 漏 Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

ISL6307ACRZ 產(chǎn)品屬性

  • 43

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 6

  • 275kHz

  • 66.7%

  • 4.75 V ~ 5.25 V

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 0°C ~ 70°C

  • 48-VFQFN 裸露焊盤

  • 管件

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