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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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SC1406ACTS Scheda tecnica(PDF) 1 Page - Semtech Corporation |
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SC1406ACTS Scheda tecnica(HTML) 1 Page - Semtech Corporation |
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1 / 17 page  SC1406A © 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PORTABLE PENTIUM ® II & III POWER SUPPLY CONTROLLER January 28, 2000 1 Pentium is a registered trademark of Intel Corporation BLOCK DIAGRAM PIN CONFIGURATION DESCRIPTION The SC1406A is a High Speed, High performance Hysteretic Mode controller. It is part of a two chip solu- tion, with the SC1405 Smart Driver, providing power to advanced micro-processors. It uses a Dynamic Set Point switching technique along with an ultra-fast com- parator to provide the control signal to an external high speed Mosfet driver. A 5-bit DAC sets the output voltage, thus providing a voltage resolution of 25mV. SC1406A has two on-chip linear regulators which drive external PNP transistors with output voltage set- tings of 1.5V and 2.5Vdc. The linear regulator drivers have a separate soft start. A PWRGD TTL level signal is asserted when all voltages are within specifications. The part features Low Battery Detect and Undervolt- age Lock-Out for the main Hysteretic controller to as- sure V-DC is within acceptable limits. An Over-Current comparator disables the main controller during an overcurrent condition using an externally pro- grammable threshold. FEATURES • High Speed Hysteretic controller provides high efficiency over a wide operating load range • Inherently stable • Complete power solution with two LDO drivers • Programmable output voltage for Pentium® II & III Processors APPLICATIONS • Laptop and Notebook computers • High performance Microprocessor based systems • High efficiency distributed power supplies DEVICE PACKAGE TEMP. (T J) SC1406ACTS TSSOP-28 0 - 125°C ORDERING INFORMATION TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com TSSOP-28 Top View |
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