参数资料
| 型号： | ISL6554CBZA |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC PWM CORE VOLTAGE REG 20-SOIC |
| 标准包装： | 380 |
| 应用： | 控制器，Intel Itanium? |
| 输入电压： | 4.75 V ~ 5.25 V |
| 输出数： | 4 |
| 输出电压： | 0.95 V ~ 1.7 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
?
ISL6554
Data Sheet
February 11, 2005
FN9003.3
Microprocessor CORE Voltage Regulator
Using Multi-Phase Buck PWM Control
Without Programmable Droop
The ISL6554 is the first controller in the Intersil Multi-Phase
family without the programmable droop feature. The
ISL6554 in combination with the HIP6601A, HIP6602A or
HIP6603A companion gate drivers and Intersil MOSFETs
form a complete solution for high-current, high slew-rate
applications. The ISL6554 regulates output voltage,
balances load currents and provides protective functions for
two to four synchronous-rectified buck-converter channels.
A novel approach to current sensing is used to reduce
overall solution cost. The voltage developed across the
lower MOSFET’s parasitic on-resistance during conduction
is sampled and fed back to the controller. This lossless
current-sensing approach allows the controller to maintain
phase-current balance between the power channels and
overcurrent protection.
A 5-bit DAC allows digital programming of the output voltage
in 25mV steps over a range from 0.95V to 1.70V with a
system accuracy of ± 1%. Internal pull ups on each DAC
input make external pull-up resistors unnecessary when
interfacing with open-drain output signals.
The PGOOD signal is held low during soft-start until the
output voltage increases to within 4% of the programmed.
When the CORE voltage falls 9% below the programmed
Features
? Multi-Phase Power Conversion
? Precision Channel Current Balance
- Lossless Current Sampling - Uses r DS(ON)
? Precision CORE Voltage Regulation
- ± 1% System Accuracy Over Temperature
- No Programmable Droop
? Microprocessor Voltage Identification Input
- 5-Bit VID Decoder
- 0.95V to 1.70V in 25mV Steps
? Fast Transient Response
? Overcurrent Protection
? Selection of 2, 3, or 4 Phase Operation
? High Ripple Frequency (80kHz to 2MHz)
? Pb-Free Available (RoHS Compliant)
Applications
? Power Supply Controller for Intel? Itanium? Processor
Family
? Voltage Regulator Modules
? Servers and Workstations
Ordering Information
VID level, an undervoltage condition is detected and results
in PGOOD transitioning low.
In the event of an overvoltage condition, The converter shuts
PART NUMBER
ISL6554CB
TEMP. (°C)
0 to 70
PACKAGE
20 Ld SOIC
PKG.
DWG. #
M20.3
down and turns ON the lower MOSFETs to clamp and
protect the microprocessor. Overcurrent protection reduces
the regulator RMS output current to 41% of the programmed
overcurrent trip value. These features provide monitoring
ISL6554CB-T
ISL6554CBZ (Note)
20 Ld SOIC Tape and Reel
0 to 70 20 Ld SOIC
(PB-free)
M20.3
and protection for the microprocessor and power system.
ISL6554CBZ-T (Note)
20 Ld SOIC Tape and Reel (PB-free)
Pinout
ISL6554 (SOIC)
ISL6554CBZA (Note)
0 to 70
20 Ld SOIC
(PB-free)
M20.3
TOP VIEW
ISL6554CBZA-T (Note)
20 Ld SOIC Tape and Reel (PB-free)
VID4 1
VID3 2
VID2 3
VID1 4
VID0 5
20 VCC
19 PGOOD
18 PWM4
17 ISEN4
16 ISEN1
NOTE: Intersil Pb-free 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-020C.
COMP 6
FB 7
FS/DIS 8
GND 9
VSEN 10
1
15 PWM1
14 PWM2
13 ISEN2
12 ISEN3
11 PWM3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright ? Intersil Americas Inc. 2001, 2004, 2005. All Rights Reserved. Intel? is a registered trademark of Intel Corporation.
Itanium? is a trademark of Intel Corporation. All other trademarks mentioned are the property of their respective owners.
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| ISL6554CBZA-T | 功能描述:IC PWM CORE VOLTAGE REG 20-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6554CBZ-T | 功能描述:IC PWM CORE VOLTAGE REG 20-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
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| ISL6556ACB | 功能描述:IC CTRLR MULTIPHASE VRM10 28SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6556ACBR5208 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
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