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LT1301IS8 Datasheet(PDF) 2 Page - Linear Technology |
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LT1301IS8 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page 2 LT1301 ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION VIN Voltage .............................................................. 10V SW1 Voltage ............................................................ 20V Sense Voltage .......................................................... 20V Shutdown Voltage ................................................... 10V Select Voltage .......................................................... 10V ILIM Voltage ............................................................ 0.5V Maximum Power Dissipation ............................. 500mW Operating Temperature Range LT1301C ................................................... 0 °C to 70°C LT1301I .................................................. 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C S8 PART MARKING 1301 1301I SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IQ Quiescent Current VSHDN = 0.5V, VSEL = 5V, VSENSE = 5.5V q 120 200 µA VSHDN = 1.8V q 715 µA VIN Input Voltage Range 1.8 V q 2.0 V VOUT Output Sense Voltage VSEL = 5V q 11.52 12.00 12.48 V VSEL = 0V q 4.75 5.00 5.25 V Output Referred VSEL = 5V (Note 1) q 50 100 mV Comparator Hysteresis VSEL = 0V (Note 1) q 22 50 mV Oscillator Frequency Current Limit not Asserted. 120 155 185 kHz Oscillator TC 0.2 %/ °C DC Maximum Duty Cycle 75 86 95 % tON Switch On-Time Current Limit not Asserted. 5.6 µs Output Line Regulation 1.8V < VIN < 6V q 0.06 0.15 %/V VCESAT Switch Saturation Voltage ISW = 700mA q 130 200 mV Switch Leakage Current VSW = 5V, Switch Off q 0.1 10 µA Peak Switch Current ILIM Floating (See Typical Application) 0.75 1.0 1.25 A (Internal Trip Point) ILIM Grounded 0.4 A VSHDNH Shutdown Pin High q 1.8 V VSHDNL Shutdown Pin Low 0.5 V VSELH Select Pin High q 1.5 V VSELL Select Pin Low q 0.8 V ISHDN Shutdown Pin Bias Current VSHDN = 5V q 820 µA VSHDN = 2V q 3 µA VSHDN = 0V q 0.1 1 µA ISEL Select Pin Bias Current 0V < VSEL < 5V q 13 µA ELECTRICAL CHARACTERISTICS T A = 25°C, VIN = 2V unless otherwise noted. The q denotes specifications which apply over the 0 °C to 70°C temperature range. ORDER PART NUMBER Note 1: Hysteresis specified is DC. Output ripple may be higher if output capacitance is insufficient or capacitor ESR is excessive. See operation section. LT1301CN8 LT1301CS8 LT1301IS8 1 2 3 4 8 7 6 5 TOP VIEW GND SEL SHDN SENSE PGND SW VIN ILIM N8 PACKAGE 8-LEAD PLASTIC DIP S8 PACKAGE 8-LEAD PLASTIC SOIC TJMAX = 100°C, θJA = 150°C/ W |
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