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參數(shù)資料
| 型號： | IRU3018CW |
| 廠商： | International Rectifier |
| 英文描述： | 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON-BOARD |
| 中文描述： | 5位可編程同步降壓普樂士LDO控制器和200mA LDO的板載 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 148K |
| 代理商： | IRU3018CW |
IRU3018
1
Rev. 1.5
07/24/01
TYPICAL APPLICATION
DESCRIPTION
The IRU3018 controller IC is specifically designed to meet
Intel specification for Pentium II
microprocessor appli-
cations as well as the next generation of P6 family pro-
cessors. The IRU3018 provides a single chip controller
IC for the Vcore, LDO controller for GTL+ and an internal
200mA regulator for clock supply which are required for
the Pentium II applications. These devices feature a pat-
ented topology that in combination with a few external
components as shown in the typical application circuit,
will provide in excess of 18A of output current for an on-
board DC-DC converter while automatically providing the
right output voltage via the 5-bit internal DAC. The
IRU3018 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, internal current limit-
ing for the clock supply, and a Power Good window com-
parator that switches its open collector output low when
any one of the outputs is outside of a pre-programmed
window. Other features of the device are: Under-voltage
lockout for both 5V and 12V supplies, an external pro-
grammable soft-start function, programming the oscilla-
tor frequency via an external resistor, Over-Voltage Pro-
tection (OVP) circuitry for both switcher outputs and an
internal thermal shutdown.
Provides single chip solution for Vcore, GTL+ & clock
supply
200mA On-Board LDO Regulator
Designed to meet the latest Intel specification for
Pentium II
On-Board DAC programs the output voltage from
1.3V to 3.5V
Linear regulator controller on board for 1.5V GTL+
supply
Loss-less Short Circuit Protection with HICCUP
Synchronous operation allows maximum efficiency
patented architecture allows fixed frequency opera-
tion as well as 100% duty cycle during dynamic
load
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 signal
Thermal Shutdown
Logic Level Enable Input
APPLICATIONS
Total Power Solution for Pentium II processor
application
PACKAGE ORDER INFORMATION
T
A
(
!
C) DEVICE PACKAGE
0 To 70 IRU3018CW 24-pin Plastic SOIC WB
FEATURES
5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS
LDO CONTROLLER AND 200mA LDO ON-BOARD
Note:
Pentium II is trademark of Intel Corp
Data Sheet No. PD94144
3018app3-1.1
LINEAR
CONTROL
LINEAR
REGULATOR
SWITCHER1
CONTROL
IRU3018
Vout3
5V
Vout1
Vout2
3.3V
Figure 1 - Typical application of IRU3018.
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| IRU3018CWTR | 功能描述:IC CTRL/REG SYNC BUCK 24-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)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(shù):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) |
| IRU3021CW | 制造商:International Rectifier 功能描述:ELECTRONIC COMPONENT |
| IRU3021M | 制造商:IRF 制造商全稱:International Rectifier 功能描述:5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPLE LDO CONTROLLER |
| IRU3021MCW | 功能描述:IC CTRL/REG SYNC BUCK 28-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)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(shù):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) |
| IRU3021MCWTR | 功能描述:IC CTRL/REG SYNC BUCK 28-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)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(shù):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) |
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