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LTC1574CS Datasheet(PDF) 2 Page - Linear Technology |
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LTC1574CS Datasheet(HTML) 2 Page - Linear Technology |
2 / 8 page 2 LTC1574 LTC1574-3.3/LTC1574-5 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IFB Feedback Current into Pin 10 LTC1574 1 µA VFB Feedback Voltage LTC1574 q 1.20 1.25 1.30 V VOUT Regulated Output Voltage LTC1574-3.3 q 3.14 3.30 3.46 V LTC1574-5 q 4.75 5.00 5.25 V ∆VOUT Output Voltage Line VIN = 6V to 12V, ILOAD = 100mA, IPGM = VIN (Note 2) 10 70 mV Regulation Output Voltage Load LTC1574-3.3 (Note 2) 20mA < ILOAD < 175mA, IPGM = 0V – 5 – 70 mV Regulation 20mA < ILOAD < 400mA, IPGM = VIN –45 – 70 mV LTC1574-5 (Note 2) 20mA < ILOAD < 175mA, IPGM = 0V – 5 – 70 mV 20mA < ILOAD < 400mA, IPGM = VIN –50 – 70 mV IQ Input DC Supply Current (Note 3) Active Mode 4V < VIN < 16V, IPGM = 0V 450 600 µA Sleep Mode 4V < VIN < 16V 130 180 µA Shutdown (Note 4) VSHUTDOWN = 0V, 4V < VIN < 16V 2 25 µA VLBTRIP Low-Battery Trip Point 1.25 1.4 V ILBIN Current into Pin 12 0.5 µA ILBOUT Current Sunk by Pin 11 VLBOUT = 0.4V, VLBIN = 0V 0.5 1.0 1.5 mA VLBOUT = 5V, VLBIN = 10V 1.0 µA VHYST Comparator Hysteresis 7.5 15 30 mV IPEAK Current Limit IPGM = VIN, VOUT = 0V q 0.54 0.60 0.78 A IPGM = 0V, VOUT = 0V q 0.27 0.34 0.50 A RON ON Resistance of Switch q 0.9 1.55 Ω tOFF Switch Off Time VOUT at Regulated Value 3 4 5 µs VIH Shutdown Pin High Minimum Voltage at Pin 7 for Device to Be Active 1.2 V VIL Shutdown Pin Low Maximum Voltage at Pin 7 for Device to Be in Shutdown 0.75 V IIH Shutdown Pin Input Current VSHUTDOWN = 16V 2 µA ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS PACKAGE/ORDER INFORMATION ORDER PART NUMBER LTC1574CS LTC1574CS-3.3 LTC1574CS-5 Consult factory for Industrial and Military grade parts. (Voltage Referred to GND Pin) Input Supply Voltage (Pin 5) .................. – 0.3V to 18.5V Switch Current (Pin 3, 14) ........................................ 1A Switch Voltage (Pin 3, 14) .......................... VIN – 18.5V Operating Temperature Range .................... 0 °C to 70°C Junction Temperature (Note 1) ............................ 125 °C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec) .................. 300 °C TA = 25°C, VIN = 9V, VSHUTDOWN = VIN, IPGM = 0V, unless otherwise specified. TOP VIEW S PACKAGE 16-LEAD PLASTIC SO *ADJUSTABLE OUTPUT VERSION TJMAX = 125°C, θJA = 110°C/W 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 NC GND SW GND VIN IPGM SHDN NC NC GND SW GND LBIN LBOUT VOUT (VFB*) NC |
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