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LT1073CS8 Datasheet(PDF) 2 Page - Linear Technology |
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LT1073CS8 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 16 page  LT1073 2 Supply Voltage, Step-Up Mode ................................ 15V Supply Voltage, Step-Down Mode ........................... 36V SW1 Pin Voltage ...................................................... 50V SW2 Pin Voltage ........................................... –0.4 to VIN Feedback Pin Voltage (LT1073) ................................. 5V Switch Current ........................................................ 1.5A Maximum Power Dissipation ............................. 500mW Operating Temperature Range ..................... 0 °C to 70°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER TJMAX = 125°C, θJA = 100°C/W (N8) TJMAX = 125°C, θJA = 120°C/W (S8) Consult factory for parts specified with wider operating temperature ranges. LT1073CN8 LT1073CN8-5 LT1073CN8-12 LT1073CS8 LT1073CS8-5 LT1073CS8-12 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 1.5V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IQ Quiescent Current Switch Off q 95 130 µA IQ Quiescent Current, Step-Up No Load LT1073-5 135 µA Mode Configuration LT1073-12 250 µA VIN Input Voltage Step-Up Mode q 1.15 12.6 V 1.0 12.6 V Step-Down Mode q 30 V Comparator Trip Point Voltage LT1073 (Note 2) q 202 212 222 mV VOUT Output Sense Voltage LT1073-5 (Note 3) q 4.75 5 5.25 V LT1073-12 (Note 3) q 11.4 12 12.6 V Comparator Hysteresis LT1073 q 510 mV Output Hysteresis LT1073-5 q 125 250 mV LT1073-12 q 300 600 mV fOSC Oscillator Frequency q 15 19 23 kHz DC Duty Cycle Full Load (VFB = VREF) q 65 72 80 % tON Switch ON Time q 30 38 50 µs IFB Feedback Pin Bias Current LT1073, VFB = 0V q 10 50 nA ISET Set Pin Bias Current VSET = VREF q 60 120 nA VAO AO Output Low IAO = –100µA q 0.15 0.4 V Reference Line Regulation 1V ≤ VIN ≤ 1.5V q 0.35 1.0 %V 1.5V ≤ VIN ≤ 12V q 0.05 0.1 %V VCESAT Switch Saturation Voltage VIN = 1.5V, ISW = 400mA 300 400 mV Set-Up Mode q 600 mV VIN = 1.5V, ISW = 500mA 400 550 mV q 750 mV VIN = 5V, ISW = 1A 700 1000 mV q 1500 mV AV A2 Error Amp Gain RL = 100kΩ (Note 4) q 400 1000 V/V 1 2 3 4 8 7 6 5 TOP VIEW ILIM VIN SW1 SW2 FB (SENSE)* SET A0 GND N8 PACKAGE 8-LEAD PDIP S8 PACKAGE 8-LEAD PLASTIC SO *FIXED VERSIONS S8 PART MARKING 1073 10735 107312 |
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