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LT1618 Datasheet(PDF) 2 Page - Linear Technology |
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LT1618 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 16 page  LT1618 2 sn1618 1618fas VIN, SHDN Voltage ................................................... 18V SW Voltage .............................................................. 36V ISP, ISN Voltage ...................................................... 36V IADJ Voltage ............................................................... 6V FB Voltage .............................................................. 1.5V VC Voltage .............................................................. 1.5V DD PART MARKING TJMAX = 125°C, θJA = 160°C/W Consult LTC marketing for parts specified with wider operating temperature ranges. LT1618EDD ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ORDER PART NUMBER LAFQ 1 2 3 4 5 FB ISN ISP IADJ GND 10 9 8 7 6 VC SHDN VIN SW NC TOP VIEW MS PACKAGE 10-LEAD PLASTIC MSOP Junction Temperature ........................................... 125°C Operating Temperature Range (Note 2) .. – 40°C to 85°C Storage Temperature Range MSOP ............................................... – 65°C to 150°C DFN ................................................. – 65°C to 125°C Lead Temperature (Soldering, 10 sec) (MSOP) .... 300°C MS PART MARKING LT1618EMS ORDER PART NUMBER LTNH TOP VIEW 11 DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN 10 9 6 7 8 4 5 3 2 1 VC SHDN VIN SW SW FB ISN ISP IADJ GND TJMAX = 125°C, θJA = 43°C/W, θJC = 3°C/W EXPOSED PAD (PIN 11) IS GND AND MUST BE SOLDERED TO PCB ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 1.6V, VSHDN = 1.6V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Input Voltage 1.6 18 V Quiescent Current VSHDN = 1.6V, Not Switching 1.8 2.7 mA VSHDN = 0V 0.1 1 µA Reference Voltage Measured at FB Pin 1.250 1.263 1.276 V ● 1.243 1.263 1.283 V Reference Voltage Line Regulation 1.6V < VIN < 18V 0.01 0.03 %/V FB Pin Bias Current VFB = 1.263V, VIN = 1.8V ● ±2 ±12 nA Error Amplifier Voltage Gain 180 V/V Error Amplifier Transconductance ∆IC = ± 5µA 160 µmho Error Amplifier Sink Current VFB = 1.35V, VC = 1V 15 µA Error Amplifier Source Current VFB = 1.10V, VC = 1V 30 µA Current Sense Voltage (ISP, ISN) VFB = 0V, VIADJ = 0V ● 47.5 50 52.5 mV ISP, ISN Pin Bias Currents (Note 3) VISP = 1.85V, VISN = 1.80V, VIADJ = 0V 50 80 µA (ISP, ISN) Common Mode Minimum Voltage 1.8 V Switching Frequency VFB = 1V 1.25 1.4 1.6 MHz VFB = 0V 550 kHz Maximum Switch Duty Cycle ● 88 92 % Switch Current Limit (Note 4) 1.5 2.1 2.8 A |
Similar Part No. - LT1618_1 |
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Similar Description - LT1618_1 |
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