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PDF ISL6260B Data sheet ( Hoja de datos )
| Número de pieza | ISL6260B | |
| Descripción | Multi-Phase Core Regulator | |
| Fabricantes | Intersil Corporation | |
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Data Sheet
ISL6260, ISL6260B
January 3, 2006
FN9162.1
Multiphase Core Regulator for IMVP-6
Mobile CPUs
The ISL6260 and ISL6260B provide microprocessor core
voltage regulation by driving up to 3 channels in parallel. The
multiphase buck converter architecture uses interleaved
channels to multiply the output voltage ripple frequency and
reduce output channel currents. The reduction in ripple results
in fewer components, lower component cost, reduced power
dissipation, and smaller implementation area. The ISL6260,
ISL6260B multiphase controller together with the ISL6208 gate
drivers form the basis for a portable power supply solution to
power Intel's next generation mobile microprocessors. The
modulator at the heart of this power system is derived from
Intersil's Robust Ripple Regulator technology, (R3) Compared
with the traditional multiphase buck regulator, the R3
technology multiphase converter has faster transient response.
This is due to the R3 modulator commanding variable switching
frequency during load transients.
Intel Mobile Voltage Positioning is a smart voltage regulation
technology, which effectively reduces power dissipation in Intel
Pentium processors. The ISL6260 and ISL6260B support the
IMVP-6 mobile processor voltage regulation specifications.
ISL6260 and ISL6260B are pin-to-pin compatible. ISL6260B
responds to PSI# signal by adding or dropping PWM2 and
adjusting overcurrent protection accordingly. To improve
audible noise, the DPRSLPVR signal can be used to reduce
slew rates entering and exiting Deeper Sleep.
The ISL6260 and ISL6260B have several other key features.
Current sensing can be done using either DCR sensing or
discrete precision resistor sensing. A single NTC thermistor
thermally compensates both the gain and time constant of
the DCR variation. A unity gain, differential amplifier is
provided for remote CPU die sensing. This allows the
voltage on the CPU die to be accurately measured and
regulated per Intel IMVP-6 specifications.
Ordering Information
PART NUMBER PART
(Note)
MARKING
TEMP.
RANGE
(°C)
PACKAGE PKG.
(Pb-FREE) DWG. #
ISL6260CRZ ISL6260CRZ -10 to 100 40 Ld 6x6 QFN L40.6x6
ISL6260CRZ-T ISL6260CRZ -10 to 100 40 Ld 6x6 QFN L40.6x6
ISL6260BCRZ ISL6260BCRZ -10 to 100 40 Ld 6x6 QFN L40.6x6
ISL6260BCRZ-T ISL6260BCRZ -10 to 100 40 Ld 6x6 QFN L40.6x6
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.
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
• Multiple Current Sensing Approaches Supported
- Lossless DCR Current Sensing
- Precision Resistive Current Sensing
• Supports PSI# and Narrow VDC for Enhanced Battery Life
(EBL) Initiatives
• Superior Noise Immunity and Transient Response
• Thermal Monitor
• Differential Remote Voltage Sensing
• High Efficiency Across Entire Load Range
• Programmable 1, 2 or 3 Power Channels
• Balanced Channel Loading Including Transients
• Small Footprint QFN 40 Lead 6x6 Package
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Mobile laptop computers
Pinout
ISL6260CRZ, ISL6260BCRZ (QFN)
TOP VIEW
40 39 38 37 36 35 34 33 32 31
PSI# 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 PWM1
26 PWM2
25 PWM3
24 FCCM
23 ISEN1
22 ISEN2
21 ISEN3
11 12 13 14 15 16 17 18 19 20
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.
Copyright © Intersil Americas Inc. 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL6260, ISL6260B
www.EDaletacSthreiceta4lUS.cpomecifications Operating Conditions: VDD = 5V, TA = -10°C to +100°C, unless otherwise noted. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
ISEN
Imbalance Voltage
Maximum of ISENs - Minimum of ISENs
2
Input Bias Current
20
SOFT CURRENT
Soft-start current
ISS
SOFT Geyserville Current
IGV
SOFT Deeper Sleep Entry Current
IC4
SOFT Deeper Sleep Exit Current
IC4EA
SOFT Deeper Sleep Exit Current
IC4EB
POWER GOOD AND PROTECTION MONITORS
|SOFT-VDAC| >100mV
DPRSLPVR = 3.3V
DPRSLPVR = 3.3V
DPRSLPVR = 0V
-46
±175
-46
36
175
-41
±200
-41
41
200
-36
±225
-36
46
225
PGOOD Low Voltage
PGOOD Leakage Current
PGOOD Delay
VOL
IOH
tpgd
IPGOOD= 4mA
PGOOD = 3.3V
CLK_ENABLE# LOW to PGOOD HIGH
0.26 0.4
-1 1
5.5 6.8 8.1
Overvoltage Threshold
Severe Overvoltage Threshold
OCSET Reference Current
OVH
OVHS
VO rising above setpoint for >1ms
VO rising for >2µs
I(Rbias) = 10µA
160 200 240
1.675 1.7 1.725
9.8 10 10.2
OC Threshold Offset
DROOP rising above OCSET for >150μs
-2
4
Current Imbalance Threshold
One ISEN above another ISEN for >1.2ms
9
Undervoltage Threshold
(VDIFF/SOFT)
UVf VO falling below setpoint for >1.2ms
-355 -295 -235
LOGIC THRESHOLDS
VR_ON, DPRSLPVR and PGD_IN
Input Low
VIL(3.3V)
1.0
VR_ON, DPRSLPVR and PGD_IN
Input High
VIH(3.3V)
2.3
VID0-VID6, PSI#, DPRSTP# Input
Low
VIL(1.0V)
0.3
VID0-VID6, PSI#, DPRSTP# Input
High
VIH(1.0V)
0.7
PWM
PWM (PWM1-PWM3) Output Low
FCCM Output Low
VOL(5.0V)
VOL_FCCM
Sinking 5mA
Sinking 3mA
1.0
1.0
PWM (PWM1-PWM3) and FCCM
Output High
VOH(5.0V) Sourcing 5mA
3.5
PWM Tri-State Leakage
PWM = 2.5V
-1 1
THERMAL MONITOR
NTC Source Current
NTC = 1.3V
53 60 67
Over-Temperature Threshold
V (NTC) falling
1.165 1.18
1.2
VR_TT# Low Output Resistance
CLK_EN# OUTPUT LEVELS
RTT I = 20mA
6.5 9
CLK_EN# High Output Voltage
CLK_EN# Low Output Voltage
VOH
VOL
3V3 = 3.3V, I = -4mA
I = 4mA
2.9 3.1
0.26 0.4
UNITS
mV
nA
μA
μA
μA
μA
μA
V
μA
ms
mV
V
μA
mV
mV
mV
V
V
V
V
V
V
V
μA
μA
V
Ω
V
V
5 FN9162.1
January 3, 2006
5 Page 
ISL6260, ISL6260B
www.TDaytapSihceaetl4UO.cpomerating Performance (Continued)
PSI#
CLK_EN#
Vout
PHASE 2
Phase 3 current
PHASE 1 CURRENT
PHASE 2
CURRENT
PHASE 2
FIGURE 31. ISL6260B PHASE ADDING AND DROPPING IN
DEEPER SLEEP MODE, LOAD CURRENT = 4.35A
FIGURE 32. ISL6260B, INDUCTOR CURRENT WAVEFORM
WITH PHASE ADDING AND DROPPING IN DCM
OR DEEPER SLEEP MODE
PHASE 3
CURRENT
PHASE 1 CURRENT
PHASE 2 CURRENT
PHASE 2
FIGURE 33. ISL6260B, INDUCTOR CURRENT WAVEFORM
WITH PHASE ADDING AND DROPPING IN CCM
OR ACTIVE MODE
PHASE 1 CURRENT
PHASE 2 CURRENT
Pgood
FIGURE 34. ISL6260B, OVERCURRENT DUE TO PHASE
DROPPING
11 FN9162.1
January 3, 2006
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet ISL6260B.PDF ] | |
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