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ISL6316CRZ Datasheet

  • ISL6316CRZ

  • Enhanced 4-Phase PWM Controller with 6-Bit VID Code Capable ...

  • 29頁

  • INTERSIL   INTERSIL

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ISL6316
Data Sheet
August 31, 2005
FN9227.0
Enhanced 4-Phase PWM Controller with
6-Bit VID Code Capable of Precision
R
DS(ON)
or DCR Differential Current
Sensing for VR10 Application
The ISL6316 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 ISL6316 features a high
bandwidth control loop and ripple frequencies up to >4MHz to
provide optimal response to the transients.
Today鈥檚 microprocessors require a tightly regulated output
voltage position versus load current (droop). The ISL6316
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 over-current 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 ISL6316 with any other voltage rail. Dynamic-VID鈩?/div>
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
- 6-Bit VID Code at 12.5mV per Bit
- 0.8375V to 1.600V Operation Range
鈥?Thermal Monitoring
鈥?Programmable Temperature Compensation
鈥?Threshold-Sensitive Enable Pins to Enable VR and
Ensure Power Sequencing Control
鈥?Overcurrent Protection
鈥?Overvoltage Protection
鈥?2, 3 or 4 Phase Operation
鈥?Adjustable Switching Frequency up to 1MHz per Phase
鈥?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
ISL6316CRZ (Note)
ISL6316IRZ (Note)
TEMP.
(擄C)
PACKAGE
PKG.
DWG. #
0 to 70 40 Ld 6x6 QFN (Pb-free) L40.6x6
-40 to 85 40 Ld 6x6 QFN (Pb-free) L40.6x6
*Add 鈥?T鈥?suffix for tape and reel.
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. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

ISL6316CRZ 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 1

  • 275kHz

  • 66.7%

  • 4.75 V ~ 5.25 V

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 0°C ~ 70°C

  • 40-VFQFN 裸露焊盤

  • 管件

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