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LT1947 Datasheet(PDF) 2 Page - Linear Technology |
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LT1947 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page LT1947 2 1947fa VIN Voltage ................................................................ 8V CT Voltage.................................................................. 6V SW1, SW2 Voltage .................................................. 36V VON, VO2 Voltage ..................................................... 30V ORDER PART NUMBER MSE PART MARKING LTBQW LT1947EMSE (Note 1) ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO Consult LTC Marketing for parts specified with wider operating temperature ranges. Order Options Tape and Reel: Add #TR, Lead Free: Add #PBF, Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ FB1, FB2 .................................................................... 3V SHDN ......................................................................... 8V Operating Temperature Range (Note 2) .. – 40 °C to 85°C Lead Temperature (Soldering, 10 sec).................. 300 °C 1 2 3 4 5 FB1 FB2 CT SW1 GND 10 9 8 7 6 VON VO2 SHDN SW2 VIN TOP VIEW MS PACKAGE 10-LEAD PLASTIC MSOP ORDER PART NUMBER MS PART MARKING LTUE LT1947EMS TJMAX = 125°C, θJA = 120°C/W TJMAX = 125°C, θJA = 40°C/W 1 2 3 4 5 FB1 FB2 CT SW1 GND 10 9 8 7 6 VON V02 SHDN SW2 VIN TOP VIEW 11 MSE PACKAGE 10-LEAD PLASTIC MSOP EXPOSED PAD (PIN 11) IS GND MUST BE SOLDERED TO PCB The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.3V, VSHDN = 3.3V unless otherwise specified. ELECTRICAL CHARACTERISTICS SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage Range 2.7 8 V Supply Current SHDN = 2.4V 9.5 12.5 mA SHDN = 0V 1 µA FB1 Voltage 1.240 1.26 1.280 V ● 1.225 1.295 V FB2 Voltage 1.225 1.26 1.295 V ● 1.210 1.310 V Reference Line Regulation VIN = 2.7V to 8V 0.01 0.05 %/V |
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