ISL6261CR7Z

ISL6261CR7Z Datasheet

ISL6261

Part	Datasheet
ISL6261CR7Z	ISL6261CR7Z (pdf)

Related Parts	Information
ISL6261IRZ	ISL6261IRZ
ISL6261IR7Z-T	ISL6261IR7Z-T
ISL6261IRZ-T	ISL6261IRZ-T
ISL6261IR7Z	ISL6261IR7Z
ISL6261CRZ	ISL6261CRZ
ISL6261CRZ-T	ISL6261CRZ-T
ISL6261CR7Z-T	ISL6261CR7Z-T

PDF Datasheet Preview
Data Sheet September 27, 2006 ISL6261 FN9251.1 Single-Phase Core Regulator for Mobile CPUs The ISL6261 is a single-phase buck regulator implementing protocol, with embedded gate drivers. The heart of the ISL6261 is the patented R3 Technology , Intersil’s Robust Ripple Regulator modulator. Compared with the traditional multi-phase buck regulator, the R3 Technology has faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient. Mobile Voltage Positioning IMVP is a smart voltage regulation technology effectively reducing power dissipation in Pentium processors. To boost battery life, the ISL6261 supports DPRSLRVR deeper sleep function and maximizes the efficiency via automatically changing operation modes. At heavy load in the active mode, the regulator commands the continuous conduction mode CCM operation. When the CPU enters deeper sleep mode, the ISL6261 enables diode emulation to maximize the efficiency at light load. Asserting the FDE pin of the ISL6261 in deeper sleep mode will further decrease the switching frequency at light load and increase the regulator efficiency. A 7-bit digital-to-analog converter DAC allows dynamic adjustment of the core output voltage from 0.300V to 1.500V. The ISL6261 has system voltage accuracy over temperature. A unity-gain differential amplifier provides remote voltage sensing at the CPU die. This allows the voltage on the CPU die to be accurately measured and regulated per IMVP-6 specification. Current sensing can be implemented through either lossless inductor DCR sensing or precise resistor sensing. If DCR sensing is used, an NTC thermistor network will thermally compensates the gain and the time constant variations caused by the inductor DCR change. • Precision single-phase CORE voltage regulator - system accuracy over temperature - Enhanced load line accuracy • Internal gate driver with 2A driving capability • Microprocessor voltage identification input - 7-Bit VID input - 0.300V to 1.500V in 12.5mV steps - Support VID change on-the-fly • Multiple current sensing schemes supported - Lossless inductor DCR current sensing - Precision resistive current sensing • Thermal monitor • User programmable switching frequency • Differential remote voltage sensing at CPU die • Overvoltage, undervoltage, and overcurrent protection • Pb-free plus anneal available RoHS compliant Ordering Information PART NUMBER PART NOTE MARKING TEMP RANGE PACKAGE PKG. Pb-FREE DWG. # ISL6261CRZ ISL6261CRZ -10 to +100 40 Ld 6x6 L40.6x6 QFN ISL6261CRZ-T ISL6261CRZ -10 to +100 40 Ld 6x6 L40.6x6 QFN, T&R ISL6261CR7Z -10 to +100 48 Ld 7x7 L48.7x7 QFN ISL6261CR7Z-T ISL6261CR7Z -10 to +100 48 Ld 7x7 L48.7x7 QFN, T&R ISL6261IRZ ISL6261IRZ -40 to +100 40 Ld 6x6 L40.6x6 QFN ISL6261IRZ-T ISL6261IRZ -40 to +100 40 Ld 6x6 L40.6x6 QFN, T&R ISL6261IR7Z -40 to +100 48 Ld 7x7 L48.7x7 QFN ISL6261IR7Z-T ISL6261IR7Z -40 to +100 48 Ld 7x7 L48.7x7 QFN, T&R 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. 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. Copyright Intersil Americas Inc. All Rights Reserved. R3 Technology is a trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. Pinouts ISL6261 ISL6261 40 LD QFN PGOOD 3V3 CLK_EN DPRSTP# DPRSLPVR VR_ON VID6 VID5 VID4 VID3 40 39 38 37 36 35 34 33 32 31 FDE 1 PGD_IN 2 RBIAS 3 VR_TT# 4 NTC 5 SOFT 6 OCSET 7 VW 8 COMP 9 FB 10 GND PAD BOTTOM 30 VID2 29 VID1 28 VID0 27 VCCP 26 LGATE 25 VSSP 24 PHASE 23 UGATE 22 BOOT 21 NC 11 12 13 14 15 16 17 18 19 20 VDIFF VSEN RTN DROOP DFB VO VSUM VIN VSS VDD ISL6261 48 LD QFN 3V3 CLK_EN# DPRSTP# DPRSLPVR VR_ON VID6 VID5 VID4 VID3 VID2 VID1 VID0 48 47 46 45 44 43 42 41 40 39 38 37

PDF Datasheet Preview

Data Sheet

September 27, 2006

ISL6261

FN9251.1

Single-Phase Core Regulator for Mobile CPUs

The ISL6261 is a single-phase buck regulator implementing protocol, with embedded gate drivers.

The heart of the ISL6261 is the patented R3 Technology , Intersil’s Robust Ripple Regulator modulator. Compared with the traditional multi-phase buck regulator, the R3 Technology has faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient.

Mobile Voltage Positioning IMVP is a smart voltage regulation technology effectively reducing power dissipation in Pentium processors. To boost battery life, the ISL6261 supports DPRSLRVR deeper sleep function and maximizes the efficiency via automatically changing operation modes. At heavy load in the active mode, the regulator commands the continuous conduction mode CCM operation. When the CPU enters deeper sleep mode, the ISL6261 enables diode emulation to maximize the efficiency at light load. Asserting the FDE pin of the ISL6261 in deeper sleep mode will further decrease the switching frequency at light load and increase the regulator efficiency.

A 7-bit digital-to-analog converter DAC allows dynamic adjustment of the core output voltage from 0.300V to 1.500V. The ISL6261 has system voltage accuracy over temperature.

A unity-gain differential amplifier provides remote voltage sensing at the CPU die. This allows the voltage on the CPU die to be accurately measured and regulated per IMVP-6 specification. Current sensing can be implemented through either lossless inductor DCR sensing or precise resistor sensing. If DCR sensing is used, an NTC thermistor network will thermally compensates the gain and the time constant variations caused by the inductor DCR change.
• Precision single-phase CORE voltage regulator - system accuracy over temperature - Enhanced load line accuracy
• Internal gate driver with 2A driving capability
• Microprocessor voltage identification input - 7-Bit VID input - 0.300V to 1.500V in 12.5mV steps - Support VID change on-the-fly
• Multiple current sensing schemes supported - Lossless inductor DCR current sensing - Precision resistive current sensing
• Thermal monitor
• User programmable switching frequency
• Differential remote voltage sensing at CPU die
• Overvoltage, undervoltage, and overcurrent protection
• Pb-free plus anneal available RoHS compliant
Ordering Information

PART NUMBER PART

NOTE

MARKING

TEMP RANGE

PACKAGE PKG. Pb-FREE DWG. #

ISL6261CRZ

ISL6261CRZ -10 to +100 40 Ld 6x6 L40.6x6 QFN

ISL6261CRZ-T ISL6261CRZ -10 to +100 40 Ld 6x6 L40.6x6 QFN, T&R

ISL6261CR7Z -10 to +100 48 Ld 7x7 L48.7x7 QFN

ISL6261CR7Z-T ISL6261CR7Z -10 to +100 48 Ld 7x7 L48.7x7 QFN, T&R

ISL6261IRZ

ISL6261IRZ -40 to +100 40 Ld 6x6 L40.6x6 QFN

ISL6261IRZ-T ISL6261IRZ -40 to +100 40 Ld 6x6 L40.6x6 QFN, T&R

ISL6261IR7Z -40 to +100 48 Ld 7x7 L48.7x7 QFN

ISL6261IR7Z-T ISL6261IR7Z -40 to +100 48 Ld 7x7 L48.7x7 QFN, T&R

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.

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.

Copyright Intersil Americas Inc. All Rights Reserved. R3 Technology is a trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

Pinouts

ISL6261

ISL6261 40 LD QFN

PGOOD 3V3 CLK_EN DPRSTP# DPRSLPVR VR_ON VID6 VID5 VID4 VID3
40 39 38 37 36 35 34 33 32 31

FDE 1 PGD_IN 2

RBIAS 3 VR_TT# 4

NTC 5 SOFT 6 OCSET 7

VW 8 COMP 9

FB 10

GND PAD BOTTOM
30 VID2 29 VID1 28 VID0 27 VCCP 26 LGATE 25 VSSP 24 PHASE 23 UGATE 22 BOOT 21 NC
11 12 13 14 15 16 17 18 19 20

VDIFF VSEN

RTN DROOP

DFB VO

VSUM VIN VSS VDD

ISL6261 48 LD QFN
3V3 CLK_EN# DPRSTP# DPRSLPVR VR_ON VID6 VID5 VID4 VID3 VID2 VID1 VID0
48 47 46 45 44 43 42 41 40 39 38 37

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Datasheet ID: ISL6261CR7Z 639170