Datasheet LTC1735-1 (Analog Devices) - 28

LTC1735-1
U TYPICAL APPLICATIO High Efficiency Dynamic Output Voltage Selectable CPU Power Supply for SpeedStep Enabled Processors
PGOOD RUN VIN 4.5V TO 24V R7 JP1 100k LATCH-OFF R6 R8 INTV DISABLE 680k 4.7Ω CC CIN C 22µF F1 CIN: MARCON THCR70E1H226ZT 0.1 50V µF COUT: PANASONIC EEFVE06181R C CERAMIC OSC 47pF 1 16 Q1 L1: PANASONIC ETQP6F1R2HFA COSC TG ×2 FDS6680A RSENSE: IRC CRF2512-01-R004F CSS 0.1µF 2 15 RUN/SS BOOST L1 C R C R C2 330pF C1 33k 3 14 B 0.22µF SENSE I 1.2µH TH LTC1735-1 SW 0.004Ω VOUT CC1 47pF 4 13 D1 1.35V OR 1.60V PGOOD VIN CMDSH-3 12A 5 12 D2 R1 SENSE – INTVCC C1 C2 MBRS340T3 10k C + S1 6 11 C2 C4 C 47pF SENSE + BG 47pF Q2, Q3 0.5% OUT 1000pF 4.7µF 1µF + 180µF 7 10 FDS6680A V R3 4V OSENSE PGND C3 ×2 8 9 33.2k SP 5V 47pF SGND EXTVCC 1% ×4 INPUT (OPTIONAL) Q4 2N7002 VSEL = 1: VOUT = 1.60V R5 10Ω R2 VSEL = 0: VOUT = 1.35V 14.3k R4 10Ω 0.5% GND 1735-1 TA01
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