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LTC3424EMS Datasheet(PDF) 3 Page - Linear Integrated Systems |
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LTC3424EMS Datasheet(HTML) 3 Page - Linear Integrated Systems |
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3 / 12 page  3 LTC3423/LTC3424 34234f The q denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 1.2V, VOUT = 3.3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS SHDN Input High VSHDN = VIN = VOUT 1V SHDN Input Low 0.4 V SHDN Input Current VSHDN = 5.5V 0.01 1 µA ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LTC3423/LTC3424 are guaranteed to meet performance specifications from 0 °C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: Current is measured into VDD since the supply current is bootstrapped to the VDD pin. The outputs are not switching. Note 4: Once the output is started, the IC is not dependant upon the VIN supply. Switching Waveform on SW Pin TYPICAL PERFOR A CE CHARACTERISTICS Transient Response 150mA to 450mA SW 0.5V/DIV ILOAD = 500mA 100ns/DIV 3423/24 G01 VOUT 1.8V IOUT COUT = 44µF 200 µs/DIV 3423/24 G02 L = 2.2 µH fOSC = 1MHz VOUT 100mV/DIV AC COUPLED 450mA 150mA Burst Mode Operation at 500 µA Load Burst Mode Operation at 10mA Load VOUT 100mV/DIV AC COUPLED VIN = 1.2V 1ms/DIV 3423/24 G03 VOUT = 1.8V COUT = 44µF MODE/SYNC PIN = HIGH SW 1V/DIV VOUT 100mV/DIV AC COUPLED VIN = 1.2V 500 µs/DIV 3423/24 G04 VOUT = 1.8V COUT = 44µF MODE/SYNC PIN = HIGH SW 1V/DIV 0V |
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