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Renesas Electronics Components Datasheet

ISL6565B Datasheet

Multi-Phase PWM Controller

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NOT RECOMMENDED FOR NEW DESIGNS
NO RECOMMENDED REPLACEMENT
DATASHEET
contact our Technical Support Center at
ISL6565A, ISL6565B
1-888-INTERSIL or www.intersil.com/tsc
FN9135
Multi-Phase PWM Controller with Precision rDS(ON) or DCR Current Sensing for
Rev 4.00
VR10.X Application
Dec 1, 2005
The ISL6565A, ISL6565B controls microprocessor core
voltage regulation by driving up to 3 synchronous-rectified
buck channels in parallel. Multi-phase buck converter
architecture uses interleaved timing to multiply channel
ripple frequency and reduce input and output ripple currents.
The difference between the ISL6565A and the ISL6565B is
that the ISL6565A utilizes rDS(ON) current sensing, while the
ISL6565B utilizes DCR current sensing for each phase.
These cost and space saving methods of current sensing
are used for adaptive voltage positioning (droop), channel-
current balancing, and overcurrent protection. To ensure the
accuracy of droop, a programmable internal temperature
compensation function is implemented to compensate the
effect of rDS(ON) and DCR temperature sensitivity.
A unity gain, differential amplifier is provided for remote
voltage sensing. Any potential difference between remote
and local grounds is eliminated using the remote-sense
amplifier. The precision threshold-sensitive enable input is
available to accurately coordinate the start up of the
ISL6565A, ISL6565B with Intersil MOSFET driver ICs.
Dynamic-VID™ technology allows seamless on-the-fly VID
changes. The offset pin allows accurate voltage offset
settings that are independent of VID setting.
Features
• Multi-Phase Power Conversion
- 2 or 3 Phase Operation
• Precision Core Voltage Regulation
- Differential Remote Voltage Sensing
- 0.5% System Accuracy Over Temperature and Life
- Adjustable Reference-Voltage Offset
• Precision rDS(ON) or DCR Current Sensing
- Integrated Programmable Temperature Compensation
- Accurate Load-Line Programming
- Accurate Channel-Current Balancing
- Low-Cost, Lossless Current Sensing
• Input Voltage: 12V or 5V Bias
• Microprocessor Voltage Identification Input
- Dynamic VID® Technology
- 6-Bit VID Input
- 0.8375V to 1.600V in 12.5mV Steps
• Threshold Enable Function for Precision Sequencing
• Overcurrent Protection
• Overvoltage Protection
• Digital Soft-Start
• Operation Frequency up to 1.5MHz per Phase
• QFN Package
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
- Near Chip Scale Package Footprint, which Improves
PCB Efficiency and Has a Thinner Profile
• Pb-Free Plus Anneal Available (RoHS Compliant)
Ordering Information
PART NUMBER
PART MARKING
TEMP. RANGE (°C)
PACKAGE
PKG. DWG. #
ISL6565ACB
ISL6565ACB
0 to 105
28 Ld SOIC
M28.3
ISL6565ACBZ (Note)
ISL6565ACBZ
0 to 105
28 Ld SOIC (Pb-free)
M28.3
ISL6565ACR
ISL6565ACR
0 to 105
28 Ld 5x5 QFN
L28.5x5
ISL6565ACRZ (Note)
ISL6565ACRZ
0 to 105
28 Ld 5x5 QFN (Pb-free)
L28.5x5
ISL6565ACV
ISL6565ACV
0 to 105
28 Ld TSSOP
M28.173
ISL6565ACVZ (Note)
ISL6565ACVZ
0 to 105
28 Ld TSSOP (Pb-free)
M28.173
ISL6565BCB
ISL6565BCB
0 to 105
28 Ld SOIC
M28.3
ISL6565BCBZ (Note)
ISL6565BCBZ
0 to 105
28 Ld SOIC (Pb-free)
M28.3
ISL6565BCR
ISL6565BCR
0 to 105
28 Ld 5x5 QFN
L28.5x5
ISL6565BCRZ (Note)
ISL6565BCRZ
0 to 105
28 Ld 5x5 QFN (Pb-free)
L28.5x5
ISL6565BCV
ISL6565BCV
0 to 105
28 Ld TSSOP
M28.173
ISL6565BCVZ (Note)
ISL6565BCVZ
0 to 105
28 Ld TSSOP (Pb-free)
M28.173
*Add "-T" 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.
FN9135 Rev 4.00
Dec 1, 2005
Page 1 of 28


Renesas Electronics Components Datasheet

ISL6565B Datasheet

Multi-Phase PWM Controller

No Preview Available !

ISL6565A, ISL6565B
Pinouts
ISL6565ACB (SOIC), ISL6565ACV (TSSOP)
TOP VIEW
OVP 1
PGOOD 2
VID4 3
VID3 4
VID2 5
VID1 6
VID0 7
VID12.5 8
OFS 9
TCOMP 10
REF 11
FB 12
COMP 13
VDIFF 14
28 FS
27 EN
26 VCC
25 ENLL
24 NC
23 ISEN2
22 PWM2
21 PWM1
20 ISEN1
19 ISEN3
18 PWM3
17 GND
16 RGND
15 VSEN
ISL6565BCB (SOIC), ISL6565BCV (TSSOP)
TOP VIEW
OVP 1
PGOOD 2
VID4 3
VID3 4
VID2 5
VID1 6
VID0 7
VID12.5 8
OFS 9
TCOMP 10
REF 11
FB 12
COMP 13
VDIFF 14
28 FS
27 EN
26 VCC
25 ENLL
24 ICOMMON
23 ISEN2
22 PWM2
21 PWM1
20 ISEN1
19 ISEN3
18 PWM3
17 GND
16 RGND
15 VSEN
ISL6565ACR (QFN)
TOP VIEW
28 27 26 25 24 23 22
VID3 1
21 NC
VID2 2
20 ISEN2
VID1 3
19 PWM2
VID0 4
18 PWM1
VID12.5 5
17 ISEN1
OFS 6
16 ISEN3
TCOMP 7
15 PWM3
8 9 10 11 12 13 14
ISL6565BCR (QFN)
TOP VIEW
28 27 26 25 24 23 22
VID3 1
21 ICOMMON
VID2 2
20 ISEN2
VID1 3
19 PWM2
VID0 4
VID12.5 5
OFS 6
TCOMP 7
18 PWM1
17 ISEN1
16 ISEN3
15 PWM3
8 9 10 11 12 13 14
FN9135 Rev 4.00
Dec 1, 2005
Page 2 of 28


Part Number ISL6565B
Description Multi-Phase PWM Controller
Maker Renesas
Total Page 28 Pages
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