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Renesas Electronics Components Datasheet

ISL62883C Datasheet

Multiphase PWM Regulator

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DATASHEET
To request the full datasheet, please visit www.intersil.com/products/isl62883c
ISL62883C
Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs
FN7557
Rev.3.00
May 5, 2017
The ISL62883C is a multiphase PWM buck regulator for
microprocessor or graphics processor core power supply. The
multiphase buck converter uses interleaved phases 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 ISL62883C uses two integrated
gate drivers and an external gate driver to provide a complete
solution. The PWM modulator is based on the Intersil 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 ISL62883C can be configured as a CPU or graphics Vcore
controller and is fully compliant with Intel IMVP-6.5
specifications. It responds to PSI# and DPRSLPVR signals by
adding or dropping PWM3 and Phase 2 respectively, adjusting
the overcurrent protection threshold accordingly, and entering
and 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
ISL62883C offers the FB2 function to optimize 1-Phase
performance.
Features
• Programmable 1, 2-, or 3-phase CPU or GPU mode of
operation
• Precision multiphase core voltage regulation
- 0.5% system accuracy over-temperature
- Enhanced load line accuracy
• Microprocessor voltage identification input
- 7-Bit VID input, 0V 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
• Two integrated gate drivers
• Excellent dynamic current balance
• FB2 function optimizes 1-phase mode performance
• Adaptive body diode conduction time reduction
• User-selectable overshoot reduction function
• Small footprint 40 Ld 5x5 TQFN packages
• Pb-free (RoHS compliant)
Applications
• Notebook core voltage regulator
• Notebook GPU voltage regulator
Related Literature
• For a full list of related documents, visit our website
- ISL62883C product page
1.10
1.08
1.06
1.04
1.02
1.00
VIN = 8V
VIN = 12V
VIN = 19V
0.98
0.96
0.94
0.92 0 5 10 15 20 25 30 35 40 45 50 55 60 65
IOUT (A)
FIGURE 1. LOAD LINE REGULATION
FN7557 Rev.3.00
May 5, 2017
Page 1 of 2


Renesas Electronics Components Datasheet

ISL62883C Datasheet

Multiphase PWM Regulator

No Preview Available !

ISL62883C
© Copyright Intersil Americas LLC 2009-2017. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
For additional products, see www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN7557 Rev.3.00
May 5, 2017
Page 2 of 2


Part Number ISL62883C
Description Multiphase PWM Regulator
Maker Renesas
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ISL62883C Datasheet PDF






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