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LTC4444 Datasheet(PDF) 12 Page - Linear Technology |
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LTC4444 Datasheet(HTML) 12 Page - Linear Technology |
12 / 12 page LTC4444 12 4444f Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2007 LT 1107 • PRINTED IN USA RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC1693 Family High Speed Dual MOSFET Drivers 1.5A Peak Output Current, 4.5V ≤ VIN ≤ 13.2V LT ®1952/LTC3900 36V to 72V Input Isolated DC/DC Converter Chip Sets Synchronous Rectification; Overcurrent, Overvoltage, UVLO Protection; Power Good Output Signal; Compact Solution LT3010/LT3010-5 50mA, 3V to 80V Low Dropout Micropower Regulators Low Quiescent Current (30μA), Stable with Small (1μF) Ceramic Capacitor LTC3703 100V Synchronous Switching Regulator Controller No RSENSE™, Synchronizable Voltage Mode Control LTC3722-1/ LTC3722-2 Synchronous Dual Mode Phase Modulated Full-Bridge Controllers Adaptive Zero Voltage Switching, High Output Power Levels (Up to Kilowatts) LTC3723-1/ LTC3723-2 Synchronous Push-Pull PWM Controllers Current Mode or Voltage Mode Push-Pull Controllers LTC3780 High Power Buck-Boost Controller Four Switch, 4V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ 30V, High Efficiency LTC3785 Buck-Boost Controller High Efficiency, Four Switch, 2.7V ≤ VIN ≤ 10V, 2.7V ≤ VOUT ≤ 10V LTC3810 100V Current Mode Synchronous Step-Down Switching Regulator Controller No RSENSE, Synchronizable Tracking, Power Good Signal LTC3813 100V Current Mode Synchronous Step-Up Controller No RSENSE, On-Board 1Ω Gate Drivers, Synchronizable LT3845 High Power Synchronous DC/DC Controller Current Mode Control, VIN Up to 60V, Low IQ LTC3901 Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters Programmable Time Out, Reverse Inductor Current Sense LTC4440/ LTC4440-5 High Speed, High Voltage, High Side Gate Drivers Wide Operating VIN Range: Up to 80V DC, 100V Transient LTC4441 6A MOSFET Driver Adjustable Gate Drive from 5V to 8V, 5V ≤ VIN ≤ 28V LTC4442/LTC4442-1 High Speed Synchronous N-Channel MOSFET Drivers 5A Peak Output Current, 6V to 9.5V Gate Drive Supply, 38V Max Input Supply No RSENSE is a trademark of Linear Technology Corporation. TYPICAL APPLICATION LTC3780 High Efficiency 8V-80V VIN to 12V/5A Buck-Boost DC/DC Converter PGOOD SS SENSE+ SENSE– ITH VOSENSE SGND RUN FCB PLLFLTR PLLIN STBYMD BOOST1 TG1 SW1 VIN EXTVCC INTVCC BG1 PGND BG2 SW2 TG2 BOOST2 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 LTC3780EG 10k 100 Ω 20k 100 Ω VOS+ 150k 113k 1% 8.06k 1% 0.01 μF 47pF VIN D4 0.1 μF 100pF 68pF 0.1 μF 0.1 μF 2.2 μF, 100V, TDK C4532X7R2A225MT 100 μF, 100V SANYO 100ME 100AX C1: SANYO 16ME330WF D1: DIODES INC. BAV19WS D2: DIODES INC. 1N5819HW-7-F D3: DIODES INC. B320A-13-F D4: DIODES INC. MMBZ5230B-7-F D5: DIODES INC. B1100-13-F L1: SUMIDA CDEP147-8R0 0.1 μF 16V 6V 10 μF 10V TG1 SW1 1 μF 16V 0.22 μF 16V 0.22 μF 16V L1 8 μH 2.2 μF 100V ×5 100 μF 100V ×2 VIN 1 μF 16V 0.1 μF 16V VBIAS 12V VBIAS 12V D1 SENSE+ SENSE– 6V D2 6V 1 2 4 TG1 6 7 8 9 3 VCC GND TG BOOST TINP BINP LTC4444 TS BG + 22 μF 16V ×3 C1 330 μF ×2 VOUT 10 Ω VOS + + 4444 TA03 D5 SENSE+ SENSE– D3 SW1 0.005 Ω 1W 10 Ω 10 Ω |
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