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LTC3458LEDE 数据表(PDF) 5 Page - Linear Technology |
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LTC3458LEDE 数据表(HTML) 5 Page - Linear Technology |
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5 / 16 page  LTC3458L 5 3458lf TYPICAL PERFOR A CE CHARACTERISTICS SW 1V/DIV IL 100mA/DIV SW 1V/DIV SW 5V/DIV IL 200mA/DIV VOUT 100mV/DIV IL 200mA/DIV SW 5V/DIV VOUT 100mV/DIV IL 200mA/DIV SS 200mV/DIV VOUT 2V/DIV 2V/DIV VIN IL 200mA/DIV SW 2V/DIV IL 0.5A/DIV 0mA 500ns/DIV 1 µs/DIV 500ns/DIV 50 µs/DIV 2ms/DIV 2 µs/DIV VIN = 3.3V VOUT = 5V L = 7.4 µH VIN = 3.3V VOUT = 5V L = 7.4 µH VIN = 2.25V VOUT = 5V L = 7.4 µH RILIM = 84.5k VIN = 3.3V VOUT = 5V L = 7.4 µH COUT = 22µF CFF = 22pF* RILIM = 84.5k *CFF: FEED FORWARD CAPACITOR CONECTED BETWEEN VOUT AND FB. GND 0mA 0mA 0mA 0mA VIN = 3.3V VOUT = 5V L = 7.4 µH COUT = 22µF CFF = 22pF RILIM = 84.5k VIN = 3.3V VOUT = 5V L = 7.4 µH CSS = 0.1µF 3458L G14 3458L G15 3458L G16 3458L G17 3458L G18 3458L G19 Fixed Frequency (FF) Discontinuous Current Fixed Frequency (FF) Continuous Current Over-Current with 2A ILIMIT Burst Mode Operation Burst Mode Operation Close-Up Soft-Start into 20 Ω Load (TA = 25°C unless otherwise specified) |
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