Datasheet LTC1871-1 (Analog Devices) - 2

LTC1871-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN Voltage ... – 0.3V to 36V TOP VIEW INTV RUN 1 10 SENSE CC Voltage .. –0.3V to 7V I 2 TH 9 VIN INTVCC Output Current .. 50mA FB 3 8 INTVCC FREQ 4 7 GATE GATE Voltage .. –0.3V to VINTVCC + 0.3V MODE/ 5 6 GND I SYNC TH, FB Voltages ... –0.3V to 2.7V MS PACKAGE RUN, MODE/SYNC Voltages ... –0.3V to 7V 10-LEAD PLASTIC MSOP T FREQ Voltage .. –0.3V to 1.5V JMAX = 125°C, θJA = 120°C/W SENSE Pin Voltage .. –0.3V to 36V Operating Junction Temperature Range (Note 2) LTC1871E-1 ... –40°C to 85°C LTC1871I-1 .. –40°C to 125°C Junction Temperature (Note 3) .. 125°C Storage Temperature Range ... –65°C to 150°C Lead Temperature (Soldering, 10 sec) .. 300°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1871EMS-1#PBF LTC1871EMS-1#TRPBF LTCTV 10-Lead Plastic MSOP –40°C to 85°C LTC1871IMS-1#PBF LTC1871IMS-1#TRPBF LTCTV 10-Lead Plastic MSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1871EMS-1 LTC1871EMS-1#TR LTCTV 10-Lead Plastic MSOP –40°C to 85°C LTC1871IMS-1 LTC1871IMS-1#TR LTCTV 10-Lead Plastic MSOP –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 5V, VRUN = 1.5V, RFREQ = 80k, VMODE/SYNC = 0V, unless otherwise specifi ed. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loop
VIN(MIN) Minimum Input Voltage 2.5 V I-Grade (Note 2) ● 2.5 V IQ Input Voltage Supply Current (Note 4) Continuous Mode VMODE/SYNC = 5V, VFB = 1.4V, VITH = 0.75V 550 1000 μA VMODE/SYNC = 5V, VFB = 1.4V, VITH = 0.75V, ● 550 1000 μA I-Grade (Note 2) Burst Mode Operation, No Load VMODE/SYNC = 0V, VITH = 0V (Note 5) 250 500 μA VMODE/SYNC = 0V, VITH = 0V (Note 5), ● 250 500 μA I-Grade (Note 2) Shutdown Mode VRUN = 0V 10 20 μA VRUN = 0V, I-Grade (Note 2) ● 10 20 μA 18711fb 2