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PWM Regulator. ISL62883B Datasheet

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PWM Regulator. ISL62883B Datasheet






ISL62883B Regulator. Datasheet pdf. Equivalent






ISL62883B Regulator. Datasheet pdf. Equivalent


ISL62883B

Part

ISL62883B

Description

Multiphase PWM Regulator



Feature


DATASHEET ISL62883, ISL62883B Multiphas e PWM Regulator for IMVP-6.5™ Mobile CPUs FN6891 Rev 4.00 June 21, 2011 Th e ISL62883 is a multiphase PWM buck reg ulator for miroprocessor core power sup ply. The multiphase buck converter uses interleaved phase to reduce the total output voltage ripple with each phase c arrying a portion of the total load cur rent, providing bett.
Manufacture

Renesas

Datasheet
Download ISL62883B Datasheet


Renesas ISL62883B

ISL62883B; er system performance, superior thermal management, lower component cost, reduc ed power dissipation, and smaller imple mentation area. The ISL62883 uses two i ntegrated gate drivers and an external gate driver to provide a complete solut ion. The PWM modulator is based on Inte rsil's Robust Ripple Regulator (R3) tec hnology™. Compared with traditional m odulators, the R3™ m.


Renesas ISL62883B

odulator commands variable switching fre quency during load transients, achievin g faster transient response. With the s ame modulator, the switching frequency is reduced at light load, increasing th e regulator efficiency. The ISL62883 is fully compliant wi .

Part

ISL62883B

Description

Multiphase PWM Regulator



Feature


DATASHEET ISL62883, ISL62883B Multiphas e PWM Regulator for IMVP-6.5™ Mobile CPUs FN6891 Rev 4.00 June 21, 2011 Th e ISL62883 is a multiphase PWM buck reg ulator for miroprocessor core power sup ply. The multiphase buck converter uses interleaved phase to reduce the total output voltage ripple with each phase c arrying a portion of the total load cur rent, providing bett.
Manufacture

Renesas

Datasheet
Download ISL62883B Datasheet




 ISL62883B
DATASHEET
ISL62883, ISL62883B
Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs
FN6891
Rev 4.00
June 21, 2011
The ISL62883 is a multiphase PWM buck regulator for
miroprocessor core power supply. The multiphase buck converter
uses interleaved phase to reduce the total output voltage ripple
with each phase carrying a portion of the total load current,
providing better system performance, superior thermal
management, lower component cost, reduced power dissipation,
and smaller implementation area. The ISL62883 uses two
integrated gate drivers and an external gate driver to provide a
complete solution. The PWM modulator is based on Intersil's
Robust Ripple Regulator (R3) technology™. Compared with
traditional modulators, the R3™ modulator commands variable
switching frequency during load transients, achieving faster
transient response. With the same modulator, the switching
frequency is reduced at light load, increasing the regulator
efficiency.
The ISL62883 is fully compliant with IMVP-6.5™ specifications. It
responds to PSI# and DPRSLPVR signals by adding or dropping
PWM3 and Phase-2 respectively, adjusting overcurrent protection
threshold accordingly, and entering/exiting diode emulation
mode. It reports the regulator output current through the IMON
pin. It senses the current by using either a discrete resistor or
inductor DCR whose variation over temperature can be
thermally compensated by a single NTC thermistor. It uses
differential remote voltage sensing to accurately regulate the
processor die voltage. The adaptive body diode conduction
time reduction function minimizes the body diode conduction
loss in diode emulation mode. User-selectable overshoot
reduction function offers an option to aggressively reduce the
output capacitors as well as the option to disable it for users
concerned about increased system thermal stress. In 2-Phase
configuration, the ISL62883 offers the FB2 function to
optimize 1-Phase performance.
The ISL62883B has the same functions as the ISL62883, but
comes in a different package.
Features
• Precision Multiphase Core Voltage Regulation
- 0.5% System Accuracy Over-Temperature
- Enhanced Load Line Accuracy
• Microprocessor Voltage Identification Input
- 7-Bit VID Input, 0.300V to 1.500V in 12.5mV Steps
- Supports VID Changes On-The-Fly
• Supports Multiple Current Sensing Methods
- Lossless Inductor DCR Current Sensing
- Precision Resistor Current Sensing
• Supports PSI# and DPRSLPVR modes
• Superior Noise Immunity and Transient Response
• Current Monitor and Thermal Monitor
• Differential Remote Voltage Sensing
• High Efficiency Across Entire Load Range
• Programmable 1-, 2- or 3-Phase Operation
• Two Integrated Gate Drivers
• Excellent Dynamic Current Balance Between Phases
• FB2 Function in 2-Phase Configuration to Optimize 1-Phase
Performance
• Adaptive Body Diode Conduction Time Reduction
• User-selectable Overshoot Reduction Function
• Small Footprint 40 Ld 5x5 or 48 Ld 6x6 TQFN Package
• Pb-Free (RoHS Compliant)
Applications
• Notebook Computers
FN6891 Rev 4.00
June 21, 2011
Page 1 of 37




 ISL62883B
ISL62883, ISL62883B
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL62883HRTZ
62883 HRTZ
-10 to +100
40 Ld 5x5 TQFN
L40.5x5
ISL62883IRTZ
62883 IRTZ
-40 to +100
40 Ld 5x5 TQFN
L40.5x5
ISL62883BHRTZ
62883 BHRTZ
-10 to +100
48 Ld 6x6 TQFN
L48.6x6
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. 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.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL62883, ISL62883B. For more information on MSL please see techbrief
TB363.
Pin Configurations
ISL62883
(40 LD TQFN)
TOP VIEW
ISL62883B
(48 LD TQFN)
TOP VIEW
40 39 38 37 36 35 34 33 32 31
PGOOD 1
PSI# 2
RBIAS 3
VR_TT# 4
NTC 5
VW 6
COMP 7
FB 8
SEN3/FB2 9
ISEN2 10
GND PAD
(BOTTOM)
30 BOOT2
29 UGATE2
28 PHASE2
27 VSSP2
26 LGATE2
25 VCCP
24 PWM3
23 LGATE1
22 VSSP1
21 PHASE1
11 12 13 14 15 16 17 18 19 20
48 47 46 45 44 43 42 41 40 39 38 37
NC 1
PGOOD 2
PSI# 3
RBIAS 4
VR_TT# 5
NTC 6
GND 7
VW 8
COMP 9
FB 10
ISEN3/FB2 11
NC 12
(BOTTOM)
36 BOOT2
35 UGATE2
34 PHASE2
33 VSSP2
32 LGATE2
31 NC
30 VCCP
29 PWM3
28 LGATE1
27 VSSP1
26 PHASE1
25 UGATE1
13 14 15 16 17 18 19 20 21 22 23 24
FN6891 Rev 4.00
June 21, 2011
Page 2 of 37



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