sc1406ts Semtech Corporation, sc1406ts Datasheet
sc1406ts
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sc1406ts Summary of contents
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... Programmable output voltage for Pentium Processors APPLICATIONS Laptop and Notebook computers High performance Microprocessor based systems High efficiency distributed power supplies ORDERING INFORMATION DEVICE SC1406TS BLOCK DIAGRAM Pentium is a registered trademark of Intel Corporation 652 MITCHELL ROAD SC1406 ® II & III PACKAGE TEMP ...
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PRELIMINARY - August 27, 1999 PIN DESCRIPTION: Pin Pin Name Pin Function 1 HYS Core comparator hysteresis settling. 2 CLSET Current limit setting pin. 3 VCOUT Voltage clamp output. 4 VCIN Voltage clamp input. 5 VCBYP Voltage clamp bypass pin. ...
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PRELIMINARY - August 27, 1999 ABSOLUTE MAXIMUM RATINGS PARAMETER VCC Supply Voltage Low Battery Input Input & Output Pins Enable Operating Junction Temperature Lead Temperature (Soldering) 10 seconds Storage Temperature ELECTRICAL CHARACTERISTICS Unless specified: 0 < T < 100°C ; ...
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PRELIMINARY - August 27, 1999 ELECTRICAL CHARACTERISTICS (CONT.) Unless specified: -0 < T < 100° 3.3V (See test circuit PARAMETER Core Converter Soft Start Current Core Converter Soft Start Current V Soft Start Termination SSCORE ...
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PRELIMINARY - August 27, 1999 ELECTRICAL CHARACTERISTICS (CONT.) Unless specified: -0 < T < 100° 3.3V (See test circuit PARAMETER Current Limit Comparator (CL, CLREF, CLSET) Input Bias Current Current Limit Setting Current *The Tamky ...
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PRELIMINARY - August 27, 1999 ELECTRICAL CHARACTERISTICS (CONT.) Unless specified: -0 < T < 100° 3.3V (See test circuit PARAMETER 1.5V Linear Regulator Controller Input Bias Current Output Voltage C = 56µF, 20m ESR max ...
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PRELIMINARY - August 27, 1999 VID vs. V VOLTAGE DAC VID ...
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PRELIMINARY - August 27, 1999 FUNCTIONAL DESCRIPTION SUPPLY The chip is optimized to operate from a 3. rail but is also designed to work maximum supply voltage out of the 3.3V + ...
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PRELIMINARY - August 27, 1999 In DSPS hysteretic controller configuration (Cont’d) The comparator reference voltage positioning is such that an increasing current sense voltage, VCS, i,e, an elevating load current, causes the reference voltage to decrease, and as a consequence, ...
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PRELIMINARY - August 27, 1999 Core Converter Soft Start Timer The main purpose of this block is to control the ramp- up time of the core voltage in order to reduce the ini- tial inrush current on the core input ...
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PRELIMINARY - August 27, 1999 OUTLINE DRAWING - TSSOP-28 © 1999 SEMTECH CORP. ® PORTABLE PENTIUM II & III POWER SUPPLY CONTROLLER Pentium is a registered trademark of Intel Corporation 652 MITCHELL ROAD SC1406 11 NEWBURY PARK CA 91320 ...