 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
IRU3018CW Datasheet(PDF) 1 Page - International Rectifier |
|
||||||||||||||||||||||||||||||
IRU3018CW Datasheet(HTML) 1 Page - International Rectifier |
|
|
1 / 16 page  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 RDS(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 PACKAGE ORDER INFORMATION FEATURES 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON-BOARD APPLICATIONS Total Power Solution for Pentium II processor application Note: Pentium II is trademark of Intel Corp TA (!C) DEVICE PACKAGE 0 To 70 IRU3018CW 24-pin Plastic SOIC WB 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. |
Similar Part No. - IRU3018CW |
|
Similar Description - IRU3018CW |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
