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US3007 Datasheet

Part Number US3007
Manufacturers UNISEM
Logo UNISEM
Description 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS / LDO CONTROLLER AND 200MmA LDO ON BOARD
Datasheet US3007 DatasheetUS3007 Datasheet (PDF)

US3007 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD PRELIMINARY DATASHEET FEATURES Provides Single Chip Solution for Vcore, GTL+ ,Clock Supply & 3.3V Switcher on board Second Switcher Provides Simple Control for the On board 3.3V supply 200 mA On board LDO regulator Designed to meet Intel VRM 8.2 and 8.3 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+ .

  US3007   US3007






Part Number US3005
Manufacturers UNISEM
Logo UNISEM
Description 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH DUAL LDO CONTROLLER
Datasheet US3007 DatasheetUS3005 Datasheet (PDF)

US3004/US3005 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH DUAL LDO CONTROLLER FEATURES Meets Latest VRM 8.4 Specification for PIII Provides Single Chip Solution for Vcore, GTL+ and Clock Supply On board DAC programs the output voltage from 1.3V to 3.5V. The US3004/5 remains on for VID code of (11111). Dual linear regulator controller on board for 1.5V GTL+ and 2.5V clock supplies Loss less Short Circuit Protection Synchronous operation allows maximum efficiency Patented architecture a.

  US3007   US3007







Part Number US3004
Manufacturers UNISEM
Logo UNISEM
Description 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH DUAL LDO CONTROLLER
Datasheet US3007 DatasheetUS3004 Datasheet (PDF)

US3004/US3005 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH DUAL LDO CONTROLLER FEATURES Meets Latest VRM 8.4 Specification for PIII Provides Single Chip Solution for Vcore, GTL+ and Clock Supply On board DAC programs the output voltage from 1.3V to 3.5V. The US3004/5 remains on for VID code of (11111). Dual linear regulator controller on board for 1.5V GTL+ and 2.5V clock supplies Loss less Short Circuit Protection Synchronous operation allows maximum efficiency Patented architecture a.

  US3007   US3007







5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS / LDO CONTROLLER AND 200MmA LDO ON BOARD

US3007 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD PRELIMINARY DATASHEET FEATURES Provides Single Chip Solution for Vcore, GTL+ ,Clock Supply & 3.3V Switcher on board Second Switcher Provides Simple Control for the On board 3.3V supply 200 mA On board LDO regulator Designed to meet Intel VRM 8.2 and 8.3 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 Synchronous operation allows maximum efficiency 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 OVP Circuitry Protects the Switcher Outputs and generates a Fault output Thermal Shutdown DESCRIPTION The US3007 controller IC is specifically designed to meet Intel specification for Pentium II™ microprocessor applications as well as the next generation of P6 family processors. The US3007 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. It also contains a switching controller to convert 5V to 3.3V regulator for an on board applications that either uses AT type power supply or it is desired not to rely on the ATX power sup.


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