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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SC1154CSW датащи(PDF) 1 Page - Semtech Corporation |
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SC1154CSW датащи(HTML) 1 Page - Semtech Corporation |
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1 / 18 page  SC1154 PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER FOR ADVANCED PROCESSORS © 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRELIMINARY - March 1, 2000 1 Pentium is a registered trademark of Intel Corporation TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DEVICE (1) PACKAGE TEMP. RANGE (T J) SC1154CSW SO-28 0 - 125°C ORDERING INFORMATION Note: (1) Add suffix ‘TR’ for tape and reel. DESCRIPTION The SC1154 is a synchronous-buck switch-mode con- troller designed for use in single ended power supply applications where efficiency is the primary concern. The controller is a hysteretic type, with a user se- lectable hysteresis. The SC1154 is ideal for imple- menting DC/DC converters needed to power advanced microprocessors such as Pentium ® ll, in both single and multiple processor configurations. Inhibit, under- voltage lockout and soft-start functions are included for controlled power-up. SC1154 features include an integrated 5 bit D/A con- verter, temperature compensated voltage reference, current limit comparator, over-current protection, and an adaptive deadtime circuit to prevent shoot-through of the power MOSFET during switching transitions. Power good signaling, logic compatible shutdown, and over-voltage protection are also provided. The inte- grated D/A converter provides programmability of out- put voltage from 2.0V to 3.5V in 100mV increments and 1.3V to 2.05V in 50mV increments with no external components. The SC1154 high side driver can be configured as ei- ther a grounded reference or as a floating bootstrap driver. High and low side drivers have a peak current rating of 2 amps. FEATURES • Programmable hysteresis • 5 bit DAC programmable output (1.3V-3.5V) • On-chip power good and OVP functions • Designed to meet latest Intel specifications • Up to 95% efficiency • +1% tolerance over temperature APPLICATIONS • Server Systems and Workstations • Pentium® II Core Supply • Multiple Microprocessor Supplies • Voltage Regulator Modules PIN CONFIGURATION Top View (28-Pin SOIC) SIMPLIFIED BLOCK DIAGRAM |
Аналогичный номер детали - SC1154CSW |
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Аналогичное описание - SC1154CSW |
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