参数资料
| 型号： | IRU3027CW |
| 厂商： | International Rectifier |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC CTRL/REG SYNC BUCK 28-SOIC |
| 标准包装： | 27 |
| 应用： | 控制器，Intel 处理器 |
| 输入电压： | 5V，12V |
| 输出数： | 4 |
| 输出电压： | 1.08 V ~ 1.85 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
| 其它名称： | *IRU3027CW IRU3027-CW IRU3027-CW-ND |
Data Sheet No. PD94146
IRU3027
5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
WITH TRIPLE LDO CONTROLLER
FEATURES
Designed to meet VRM 9.0 specification for next
generation microprocessors
On-Board 5-Bit DAC programs the output voltage
from 1.075V to 1.850V in 25mV steps
Linear Regulator Controller On-Board for 1.8V
Provides single chip solution for Vcore, GTL+,
AGP bus, and 1.8V
Automatic Voltage Selection for AGP Slot V DDQ
Supply
Linear Regulator Controller On-Board for 1.5V
GTL+ Supply
Loss-less Short Circuit Protection for all Outputs
Synchronous operation allows maximum effi-
ciency
Patented architecture allows fixed frequency
operation as well as 100% duty cycle during
dynamic load
Minimum Part Count
Soft-Start
High current totem pole driver for direct driving of
the external power MOSFET
Power Good function monitors all outputs
Over-Voltage Protection Circuitry protects the
switcher output and generates a fault output
APPLICATIONS
Total power solution for next generation Intel
processor application
AMD K7 Low Cost Solution
TYPICAL APPLICATION
5V
DESCRIPTION
The IRU3027 controller IC is specifically designed to meet
VRM 9.0 specification for next generation microproces-
sor applications requiring multiple on-board regulators.
The IRU3027 provides a single chip controller IC for the
Vcore, three LDO controllers, one with an automatic se-
lect pin that connects to the Type Detect pin of the AGP
slot for the AGP V DDQ supply, one for GTL+ and the other
for the 1.8V chip set regulator as required for the next
generation PC applications. The IRU3027 is designed to
use either bipolar transistors for V OUT 3(1.5V) and
V OUT 4(1.8V). No external resistor divider is necessary
for any of the regulators. The switching regulator fea-
tures a patented topology that in combination with a few
external components as shown in the typical applica-
tion circuit, will provide well in excess of 20A of output
current for an on-board DC-DC converter while automati-
cally providing the right output voltage via the 5-bit inter-
nal DAC. The IRU3027 also features loss-less current
sensing for both switchers by using the R DS(ON) of the
high side power MOSFET as the sensing resistor, an
output under-voltage shutdown that detects short circuit
condition for the linear outputs and latches the system
off, and a Power Good window comparator that switches
its open collector output low when any one of the out-
puts is outside of a pre-programmed window.
3.3V
LINEAR
V OUT 2
CONTROL
IRU3027
SWITCHER
CONTROL
V OUT 1
V OUT 3
LINEAR
CONTROL
LINEAR
CONTROL
V OUT 4
Figure 1 - Typical application of IRU3027.
PACKAGE ORDER INFORMATION
Rev. 1.5
07/17/02
T A ( 8 C)
0 To 70
DEVICE
IRU3027CW
www.irf.com
PACKAGE
28-Pin Plastic SOIC WB
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRU3027CWPBF | 制造商:International Rectifier 功能描述:DC DC Cntrlr Quad-OUT Synchronous Buck Controller/PWM DC to DC Controller 28-Pin SOIC W Tube |
| IRU3027CWTR | 功能描述:IC CTRL/REG SYNC BUCK 28-SOIC 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) |
| IRU3033 | 制造商:IRF 制造商全称:International Rectifier 功能描述:8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC |
| IRU3033CS | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC 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) |
| IRU3033CSPBF | 功能描述:IC CONTROLLER PWM SWITCH 8SOIC 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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