Datasheet LTC3528, LTC3528B (Analog Devices) - 2

LTC3528/LTC3528B
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN Voltage ... –0.3V to 6V TOP VIEW SW Voltage DC .. –0.3V to 6V SHDN 1 8 VIN Pulsed < 100ns .. –0.3V to 7V FB 2 7 SGND 9 SHDN, FB Voltage .. –0.3V to 6V PGOOD 3 6 PGND V VOUT 4 5 SW OUT ... –0.3V to 6V PGOOD ... –0.3V to 6V DDB PACKAGE Operating Junction Temperature Range 8-LEAD (3mm × 2mm) PLASTIC DFN (Notes 2, 5) .. –40°C to 125°C TJMAX = 125°C, θJA = 76°C/W (NOTE 6) EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB Storage Temperature Range ... –65°C to 125°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3528EDDB#PBF LTC3528EDDB#TRPBF LCYD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°C LTC3528BEDDB#PBF LTC3528BEDDB#TRPBF LDDG 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°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/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 1.2V, VOUT = 3.3V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Start-Up Voltage ILOAD = 1mA l 0.70 0.88 V Output Voltage Adjust Range l 1.7 5.25 V TA = 0°C to 85°C 1.6 5.25 V Feedback Voltage (Note 7) l 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 l 1.0 1.5 A Current Limit Delay Time to Output (Note 3) 60 ns Maximum Duty Cycle VFB = 1.15V l 88 93 % Minimum Duty Cycle VFB = 1.3V l 0 % Frequency l 0.7 1.0 1.3 MHz 3528fd 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Related Parts