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1374I5 Datasheet(PDF) 2 Page - Linear Technology |
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1374I5 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 32 page  2 LT1374 1374fb S8 PART MARKING Input Voltage LT1374 ............................................................... 25V LT1374HV .......................................................... 32V BOOST Pin Voltage ................................................. 38V BOOST Pin Above Input Voltage ............................. 15V SHDN Pin Voltage ..................................................... 7V BIAS Pin Voltage ...................................................... 7V FB Pin Voltage (Adjustable Part) ............................ 3.5V FB Pin Current (Adjustable Part) ............................ 1mA SENSE Voltage (Fixed 5V Part) ................................. 7V SYNC Pin Voltage ..................................................... 7V Operating Junction Temperature Range LT1374C ............................................... 0 °C to 125° C LT1374I ........................................... – 40 °C to 125°C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec)................. 300 °C R PACKAGE 7-LEAD PLASTIC DD FRONT VIEW TAB IS GND FB OR SENSE* BOOST VIN GND VSW SYNC OR SHDN* VC 7 6 5 4 3 2 1 1 2 3 4 8 7 6 5 TOP VIEW S8 PACKAGE 8-LEAD PLASTIC SO VIN BOOST FGND VSW VC BIAS SYNC OR SHDN* FB OR SENSE* θJA =80°C/ W WITH FUSED (FGND) GROUND PIN CONNECTED TO GROUND PLANE OR LARGE LANDS LT1374CS8 LT1374CS8-5 LT1374CS8-SYNC LT1374CS8-5 SYNC LT1374HVCS8 LT1374IS8 LT1374IS8-5 LT1374IS8-SYNC LT1374IS8-5 SYNC LT1374HVIS8 TJMAX = 125°C, θJA = 30°C/ W WITH PACKAGE SOLDERED TO 0.5 SQUARE INCH COPPER AREA OVER BACKSIDE GROUND PLANE OR INTERNAL POWER PLANE. θJA CAN VARY FROM 20 °C/W TO >40°C/W DEPENDING ON MOUNTING TECHNIQUES ORDER PART NUMBER LT1374CR LT1374CR-5 LT1374CR-SYNC LT1374CR-5 SYNC LT1374HVCR LT1374IR LT1374IR-5 LT1374IR-SYNC LT1374IR-5 SYNC LT1374HVIR 1374 13745 1374SN 3745SN 1374HV 1374I 1374I5 374ISN 74I5SN 1374HVI (Note 1) ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER FE16 PACKAGE 16-LEAD PLASTIC TSSOP 1 2 3 4 5 6 7 8 TOP VIEW 16 15 14 13 12 11 10 9 GND NC VIN VIN BOOST FB/SENSE NC GND GND VSW VSW SYNC SHDN VC BIAS GND T7 PACKAGE 7-LEAD PLASTIC TO-220 FB OR SENSE* BOOST VIN GND VSW SHDN VC FRONT VIEW TAB IS GND 7 6 5 4 3 2 1 TJMAX = 125°C, θJA = 50°C/ W, θJC = 4°C/ W θJA = 40°C/ W EXPOSED PAD SOLDERED TO GROUND PLANE ORDER PART NUMBER LT1374CT7 LT1374CT7-5 LT1374IT7 LT1374IT7-5 LT1374CFE LT1374IFE *Default is the adjustable output voltage device with FB pin and shutdown function. Option -5 replaces FB with SENSE pin for fixed 5V output applications. -SYNC replaces SHDN with SYNC pin for applications requiring synchronization. Consult LTC Marketing for parts specified with wider operating temperature ranges. ORDER PART NUMBER |
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