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LTC3528 Datasheet(PDF) 2 Page - Linear Technology |
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LTC3528 Datasheet(HTML) 2 Page - Linear Technology |
2 / 16 page LTC3528/LTC3528B 2 3528fa ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS VIN Voltage................................................... –0.3V to 6V SW Voltage DC............................................................ –0.3V to 6V Pulsed < 100ns........................................ –0.3V to 7V SHDN, FB Voltage ........................................ –0.3V to 6V VOUT............................................................. –0.3V to 6V PGOOD......................................................... –0.3V to 6V Operating Temperature Range (Notes 2, 5).............................................. –40°C to 85°C Storage Temperature Range................... –65°C to 125°C (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Start-Up Voltage ILOAD = 1mA ● 0.70 0.88 V Output Voltage Adjust Range TA = 0°C to 85°C ● 1.7 1.6 5.25 5.25 V V Feedback Voltage (Note 7) ● 1.170 1.200 1.230 V Feedback Input Current VFB = 1.3V 1 50 nA Quiescent Current—Shutdown VSHDN = 0V, Not Including Switch Leakage, VOUT = 0V 0.01 1 μA Quiescent Current—Active Measured on VOUT, Nonswitching (Note 4) 300 500 μA Quiescent Current—Burst Measured on VOUT, FB > 1.230V 12 20 μA N-Channel MOSFET Switch Leakage Current VSW = 5V 0.1 10 μA P-Channel MOSFET Switch Leakage Current VSW = 5V, VOUT = 0V 0.1 10 μA N-Channel MOSFET Switch On Resistance 0.175 Ω P-Channel MOSFET Switch On Resistance 0.250 Ω N-Channel MOSFET Current Limit ● 1.0 1.5 A Current Limit Delay Time to Output (Note 3) 60 ns Maximum Duty Cycle VFB = 1.15V ● 88 93 % Minimum Duty Cycle VFB = 1.3V ● 0% Frequency ● 0.7 1.0 1.3 MHz The ● denotes the specifications which apply over the specified operating temperature range of –40°C to 85°C, otherwise specifications are at TA = 25°C. VIN = 1.2V, VOUT = 3.3V, unless otherwise noted. TOP VIEW 9 DDB PACKAGE 8-LEAD (3mm × 2mm) PLASTIC DFN 5 6 7 8 4 3 2 1 SHDN FB PGOOD VOUT VIN SGND PGND SW TJMAX = 125°C, θJA = 76°C/W (NOTE 6) EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3528EDDB#PBF LTC3528BEDDB#PBF LTC3528EDDB#TRPBF LTC3528BEDDB#TRPBF LCYD LDDG 8-Lead (3mm × 2mm) Plastic DFN 8-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ PIN CONFIGURATION ORDER INFORMATION |
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