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參數資料
| 型號： | IRU3033 |
| 廠商： | International Rectifier |
| 英文描述： | 8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC |
| 中文描述： | 8引腳的PWM切換器和線性控制器芯片 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 76K |
| 代理商： | IRU3033 |
IRU3033
1
Rev. 1.7
07/17/02
www.irf.com
8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC
DESCRIPTION
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.
Simple 5V to 3.3V switcher for Pentium with AGP
or Pentium II
applications
TYPICAL APPLICATION
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.
T
A
(
°
C) 8-PIN PLASTIC SOIC (S)
0 To 70 IRU3033CS
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
Data Sheet No. PD94147
FEATURES
LDO Controller allows the use of a low cost pass
transistor for the I/O supply
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
CPU
I/O
Vcc2 Det
Core
5V
5V
12V
Q1
C1
L1
C3
Q2
D1
C2
L2
R4
R5
C7
R6
R7
C6
R8
R3
C5
D2
R10
C8
R9
Drv1
V
12(SW)
V
FB1
V
HYST
Gnd
V
FB2
Drv2
V
12
IRU3033
相關PDF資料 |
PDF描述 |
|---|---|
| IRU3033CS | 8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC |
| IRU3046 | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3046CF | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047 | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CW | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| IRU3033CS | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數:10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| IRU3033CSPBF | 功能描述:IC CONTROLLER PWM SWITCH 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數:10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| IRU3033CSTR | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 標準包裝:2,000 系列:- 應用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數:2 輸出電壓:最低可調至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商設備封裝:30-TSSOP 包裝:帶卷 (TR) |
| IRU3034 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING |
| IRU3034CS | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 標準包裝:2,000 系列:- 應用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數:2 輸出電壓:最低可調至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商設備封裝:30-TSSOP 包裝:帶卷 (TR) |
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