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LT1534I Datasheet(PDF) 2 Page - Linear Technology |
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LT1534I Datasheet(HTML) 2 Page - Linear Technology |
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2 / 16 page  2 LT1534/LT1534-1 ABSOLUTE MAXIMUM RATINGS Input Voltage (VIN) .................................................. 30V Switch Voltage (COL) .............................................. 35V SHDN Pin Voltage .................................................... 30V Feedback Pin Current (FB) .................................... 10mA Negative Feedback Pin Current (NFB) .................. ±10mA ELECTRICAL CHARACTERISTICS PACKAGE/ORDER INFORMATION ORDER PART NUMBER LT1534CS LT1534IS TOP VIEW S PACKAGE 16-LEAD PLASTIC SO *DO NOT CONNECT 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 NC COL *NC SYNC CT RT FB NFB PGND COL VIN RVSL RCSL SHDN VC GND Consult factory for Military grade parts. TJMAX = 125°C, θJA = 100°C/ W SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Supply and Protection VIN Recommended Operating Range q 2.7 23 V VIN(MIN) Minimum Input Voltage q 2.55 2.7 V IVIN Operating Supply Current 2.7V ≤ VIN ≤ 23V, RVSL, RCSL, RT = 17k q 12 30 mA IVIN(OFF) Shutdown Supply Current 2.7V ≤ VIN ≤ 23V, VSHDN = 0V q 12 50 µA 2.7V ≤ VIN ≤ 23V, VSHDN = 0V 12 30 µA VSHDN Shutdown Threshold 2.7V ≤ VIN ≤ 23V q 0.4 0.8 1.2 V ISHDN Shutdown Input Current –2 µA Error Amplifiers VREF Reference Voltage Measured at Feedback Pin 1.235 1.250 1.265 V q 1.215 1.250 1.275 V IFB Feedback Input Current VFB = VREF q 250 900 nA FBREG Reference Voltage Line Regulation 2.7V ≤ VIN ≤ 23V q 0.003 0.03 %/V The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C, VIN = 5V, VC = 0.9V, VFB = VREF. COL, SHDN, NFB, all other pins open unless otherwise noted. (Note 1) Operating Junction Temperature Range LT1534C ................................................ 0 °C to 125°C LT1534I ............................................ – 40 °C to 125°C Maximum Junction Temperature .......................... 125 °C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec.)................. 300 °C ORDER PART NUMBER LT1534CS-1 LT1534IS-1 TJMAX = 125°C, θJA = 50°C/ W TOP VIEW S PACKAGE 16-LEAD PLASTIC SO **FOUR CORNER PINS ARE FUSED TO INTERNAL DIE ATTACH PADDLE FOR HEAT SINKING. CONNECT THESE FOUR PINS TO EXPANDED PC LANDS FOR PROPER HEAT SINKING. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND COL PGND SYNC CT RT FB GND GND VIN RVSL RCSL SHDN VC NFB GND |
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