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IRU3033CSPBF PDF预览

IRU3033CSPBF

更新时间： 2024-11-28 14:51:39
品牌 Logo 应用领域
英飞凌 - INFINEON 开关
页数 文件大小 规格书
12页 168K
描述
Switching Controller,

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中文翻译

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IRU3033CSPBF 技术参数

生命周期：ActiveReach Compliance Code：compliant
风险等级：5.73Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLERBase Number Matches：1

IRU3033CSPBF 数据手册

 浏览型号IRU3033CSPBF的Datasheet PDF文件第2页浏览型号IRU3033CSPBF的Datasheet PDF文件第3页浏览型号IRU3033CSPBF的Datasheet PDF文件第4页浏览型号IRU3033CSPBF的Datasheet PDF文件第5页浏览型号IRU3033CSPBF的Datasheet PDF文件第6页浏览型号IRU3033CSPBF的Datasheet PDF文件第7页 
Data Sheet No. PD94147revA  
IRU3033(PbF)  
8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC  
FEATURES  
DESCRIPTION  
LDO Controller allows the use of a low cost pass  
transistor for the I/O supply  
The IRU3033 IC combines a switching controller and a  
linear regulator controller all in a compact 8-pin surface  
mount package, providing a total solution for dual sup-  
ply processor applications such as an Intel P55C , AMD  
K6 , as well as Cyrix 6X86L and the M2 proces-  
sors. Typically in these applications a dual supply regu-  
lator converts 5V to 3.3V for I/O supply and a jumper  
programmable supply of 1.25V to 3.5V for Core supply.  
The linear regulator controller portion in the IRU3033 is a  
programmable controller allowing flexibility for the I/O  
regulator and has a minimum of 50mA drive current ca-  
pability designed to provide ample current for an exter-  
nal pass transistor. The IC uses an internal regulator  
generated from the 12V supply to power the controller  
as well as the 12V supply to drive the power MOSFET,  
allowing a low cost N-channel MOSFET switch to be  
used. The IC also includes an error comparator for fast  
transient response, a precise voltage reference for set-  
ting the output voltage as well as a direct drive of the  
MOSFET for the minimum part count.  
8-Pin SOIC combines switching and linear  
controller  
Internal pre-regulator eliminates cross talk  
between switching and linear regulators  
Automatic shut down of the linear regulator when  
connected to the Vcc2 detect pin  
On-Board MOSFET Driver  
Fastest transient response of any controller  
method (0 to 100% Duty Cycle in 100ns)  
1% Internal Voltage Reference  
Internal Under-Voltage Lockout protects MOSFET  
during start-up  
APPLICATIONS  
Dual supply low voltage processor applications,  
such as: P55C , CYRIX M2 , POWER PC  
and AMD K6  
Simple 5V to 3.3V switcher for Pentium with AGP  
or Pentium II applications  
TYPICAL APPLICATION  
Q1  
5V  
R10  
C1  
R6  
C6  
I/O  
R9  
12V  
D2  
R7  
5V  
C8  
V
12  
Drv2 VFB2  
CPU  
R8  
IRU3033  
Gnd  
Vcc2 Det  
Drv1  
VFB1  
V12(SW)  
VHYST  
L2  
C3  
Core  
R3  
C5  
R4  
R5  
L1  
C7  
Q2  
C2  
D1  
Figure 1 - Typical application of IRU3033 in a flexible mother board designed for Intel P55 , P54 , AMD K5, K6 as well as  
Cyrix M1 and M2 applications.  
Notes: P54C, P55C, Pentium II are trademarks of Intel Corp. K5 & K6 are trademarks of AMD Corp. Cyrix 6X86L, M1, M2 are trademarks of  
Cyrix Corp. Power PC is trademark of IBM Corp.  
PACKAGE ORDER INFORMATION  
Basic Part (Non-Lead Free)  
8-PIN PLASTIC SOIC (S)  
IRU3033CS  
Leadfree Part  
TA (°C)  
TA (°C)  
8-PIN PLASTIC SOIC (S)  
0 To 70  
0 To 70  
IRU3033CSPbF  
www.irf.com  
1
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