SC1406ACTS Semtech Corporation, SC1406ACTS Datasheet
SC1406ACTS
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SC1406ACTS 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 SC1406ACTS BLOCK DIAGRAM Pentium is a registered trademark of Intel Corporation 652 MITCHELL ROAD SC1406A ® II & III PACKAGE TEMP ...
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January 28, 2000 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. Needs to ...
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January 28, 2000 PIN DESCRIPTION (Cont.) Pin Pin Name Pin Function 20 CORE Main CORE converter output feedback. 21 DAC Main controller digital to analog output. 22 GND Ground 23 CO Comparator output. Main regulator controller output used to drive ...
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January 28, 2000 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° 3.3V ...
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January 28, 2000 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 Threshold V Discharge ...
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January 28, 2000 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 device is required ...
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January 28, 2000 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 O_1.5 or 150µF, ...
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January 28, 2000 VID vs. V VOLTAGE DAC VID ...
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January 28, 2000 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. voltage ...
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January 28, 2000 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, the core ...
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January 28, 2000 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 voltage (battery) ...
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January 28, 2000 TYPICAL APPLICATION SCHEMATIC Refer to application note AN99-12 for further information. © 2000 SEMTECH CORP. ® PORTABLE PENTIUM II & III POWER SUPPLY CONTROLLER Pentium is a registered trademark of Intel Corporation 652 MITCHELL ROAD SC1406A 12 ...
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January 28, 2000 V = 1.6V 2.0A OUT OUT V = 1.6V 2.0A OUT OUT © 2000 SEMTECH CORP. PORTABLE PENTIUM POWER SUPPLY CONTROLLER Output Ripple Voltage @ 1.6V, I ...
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January 28, 2000 Load Regulation & Efficiency 1.05 1.00 0.95 % 0.90 0.85 0.80 0. Iout 12V 1. Efficiency vs Output Voltage 0.95 ...
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January 28, 2000 Supply Current Temperature @ UVLO mode IN 400 350 300 250 200 150 Voltage, V DAC Output vs Temperature 1.8 1.6 1.4 1.2 1.0 0.8 0 ...
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January 28, 2000 Core Soft Start Current vs Temperature 2.5 2 1 Temperature, 'C Low Battery Monitor Threshold vs Temperature 2.0 1.5 1.0 0.5 0 Temperature, 'C I/O ...
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January 28, 2000 OUTLINE DRAWING - TSSOP-28 ECN 99-755 ECN 00-856 © 2000 SEMTECH CORP. ® PORTABLE PENTIUM II & III POWER SUPPLY CONTROLLER Pentium is a registered trademark of Intel Corporation 652 MITCHELL ROAD SC1406A 17 NEWBURY PARK CA ...