ISL95824HRZ [RENESAS]
4+2 Multiphase PWM Regulator for Intel IMVP8™ Desktop CPUs;
| 型号： | ISL95824HRZ |
| 厂家： | 
RENESAS TECHNOLOGY CORP |
| 描述： | 4+2 Multiphase PWM Regulator for Intel IMVP8™ Desktop CPUs 开关 |
| 文件： | 总2页 (文件大小：199K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl95824
ISL95824
FN8740
Rev 0.00
May 18, 2015
4+2 Multiphase PWM Regulator for Intel IMVP8™ Desktop CPUs
Compliant with Intel IMVP8™, the ISL95824 provides a
Features
complete power solution for desktop microprocessors
supporting both the core (IA) and graphics (GT) rails. The
controller provides control and protection for one voltage
regulator (VR), which can be configured for 4-, 3-, 2- or 1-phase
operation. The second VR is configurable for 2- or 1-phase
operation. The VRs feature a programmable SVID address to
allow maximum flexibility in supporting desktop processor SKUs.
Both controller outputs share a common serial control bus to
communicate with the CPU and achieve lower cost and smaller
board area compared with a two-chip approach.
• Supports Intel serial data bus interface
2
• SMBus/PMBus/I C interface with SVID conflict free
• Green hybrid digital R3™ modulator
- Excellent transient response
- Phase shedding with power state selection
- Diode emulation in single-phase for high light load
efficiency
• Dual output controller
- Voltage regulator A: 4-, 3-, 2- or 1-phase designs with two
+12V integrated gate drivers
Based on Intersil’s Robust Ripple Regulator R3™ Technology,
the R3™ modulator has many advantages compared to
traditional modulators. These include faster transient settling
time, variable switching frequency in response to load
transients and improved light load efficiency due to diode
emulation mode with load-dependent low switching frequency.
- Voltage regulator B: 2- or 1-phase designs with one +12V
integrated gate driver
• 0.5% system accuracy over-temperature
• Supports multiple current sensing methods
- Lossless inductor DCR current sensing
- Precision resistor current sensing
The ISL95824 has several other key features. The controller
features three integrated +12V gate drivers with two drivers on
the VR B output. The controller supports either DCR current
sensing with a single NTC thermistor for DCR temperature
compensation or more precision through resistor current
sensing if desired. Both outputs feature remote voltage sense,
• Differential remote voltage sensing
• Resistor programmable address selection, I
switching frequency for both outputs
and
MAX
programmable I
, adjustable switching frequency, OC
MAX
• Adaptive body diode conduction time reduction
protection and single VR_READY power-good indicator.
Applications
• IMVP8™ compliant desktops
100
90
100
90
80
80
PS1
PS0
PS0
PS2
PS1
70
60
50
40
70
PS2/3
60
50
40
0
10
20
30
40
50
60
70
80
90
0
5
10
15
20
25
30
35
LOAD CURRENT (A)
LOAD CURRENT (A)
FIGURE 1. VR A EFFICIENCY vs LOAD
FIGURE 2. VR B EFFICIENCY vs LOAD
FN8740 Rev 0.00
May 18, 2015
Page 1 of 2
ISL95824
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For information regarding Intersil Corporation and its products, see www.intersil.com
FN8740 Rev 0.00
May 18, 2015
Page 2 of 2
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