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LTC1735CS-1 Datasheet(PDF) 28 Page - Linear Technology |
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LTC1735CS-1 Datasheet(HTML) 28 Page - Linear Technology |
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28 / 28 page  28 LTC1735-1 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900q FAX:(408)434-0507 q www.linear-tech.com ©LINEAR TECHNOLOGY CORPORATION 1999 17351f LT/TP 0100 4K • PRINTED IN USA TYPICAL APPLICATIO High Efficiency Dynamic Output Voltage Selectable CPU Power Supply for SpeedStep Enabled Processors RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC1149 High Efficiency Synchronous Step-Down Controller 100% DC, Std Threshold MOSFETs, VIN < 48V LTC1159 High Efficiency Synchronous Step-Down Controller 100% DC, Logic Level MOSFETs, VIN < 40V LT1375/LT1376 1.5A 500kHz Step-Down Switching Regulator High Efficiency LTC1435A High Efficiency Low Noise Synchronous Step-Down Controller, N-Ch Drive Burst Mode Operation, 16-Pin Narrow SO LTC1436A/LTC1436A-PLL High Efficiency Low Noise Synchronous Step-Down Converter, N-Ch Drive Adaptive Power TM Mode 20-Pin, 24-Pin SSOP LTC1474/LTC1475 Ultralow Quiescent Current Step-Down Monolithic Switching Regulator 100% DC, 8-Pin MSOP, IQ = 10µA LTC1628 Dual High Efficiency 2-Phase Step-Down Controller Antiphase Drive, 28-Pin SSOP, 3.5V ≤ VIN ≤ 36V LTC1702 550kHz Dual Output Synchronous Step-Down Controller Antiphase Drive, 24-Pin SSOP, VIN ≤ 7V LTC1709 PolyPhase TM Synchronous Controller with 5-Bit VID Up to 42A, Minimum Input Capacitors, 1.3V ≤ VOUT ≤ 3.5V LTC1735 High Efficiency Synchronous Step-Down Contoller, N-Channel Drive Burst Mode Opertion, 16-Pin Narrow SSOP LTC1736 High Efficiency Synchronous Step-Down Controller with 5-Bit VID Control Output Fault Protection, 24-Pin SSOP LTC1772 SOT-23 High Efficiency Constant Frequency Step-Down Controller 100% DC, 550kHz, SOT-23, Current Mode Adaptive Power and PolyPhase are trademarks of Linear Technology Corporation. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 COSC RUN/SS ITH PGOOD SENSE – SENSE + VOSENSE SGND TG BOOST SW VIN INTVCC BG PGND EXTVCC LTC1735-1 CS1 1000pF CC2 330pF COSC 47pF C1 47pF CC1 47pF CSS 0.1µF RC1 33k R7 100k R6 680k R8 4.7 Ω JP1 LATCH-OFF DISABLE PGOOD RUN INTVCC + C2 4.7 µF C4 1 µF 5V INPUT (OPTIONAL) C2 47pF Q4 2N7002 GND C3 47pF R1 10k 0.5% VOUT 1.35V OR 1.60V 12A VSEL = 1: VOUT = 1.60V VSEL = 0: VOUT = 1.35V D1 CMDSH-3 D2 MBRS340T3 CB 0.22µF Q1 FDS6680A CIN 22 µF 50V CERAMIC ×2 L1 1.2 µH RSENSE 0.004 Ω VIN 4.5V TO 24V Q2, Q3 FDS6680A ×2 R5 10 Ω 1735-1 TA01 R3 33.2k 1% R2 14.3k 0.5% R4 10 Ω + COUT 180 µF 4V SP ×4 CF1 0.1 µF CIN: MARCON THCR70E1H226ZT COUT: PANASONIC EEFVE06181R L1: PANASONIC ETQP6F1R2HFA RSENSE: IRC CRF2512-01-R004F |
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