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SC1453ITSK33TRT Datasheet(PDF) 11 Page - Semtech Corporation |
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SC1453ITSK33TRT Datasheet(HTML) 11 Page - Semtech Corporation |
11 / 15 page 11 2008 Semtech Corp. www.semtech.com POWER MANAGEMENT SC1453 Output Spectral Noise Density vs. Frequency vs. Output Voltage, C OUT = 100µF Output Spectral Noise Density vs. Frequency vs. Output Capacitance Typical Characteristics (Cont.) Output Spectral Noise Density vs. Frequency vs. Bypass Capacitance Output Spectral Noise Density vs. Frequency vs. Output Current Power Supply Rejection Ratio vs. Frequency vs. Output Voltage, C BYP = 10nF Power Supply Rejection Ratio vs. Frequency vs. Output Voltage, C BYP = 100nF 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100 1000 f (kHz) VIN = VOUT + 1V IOUT = 1mA CIN = 1µF CBYP = 10nF TJ = 25°C Top to bottom: VOUT = 3.3V VOUT = 3.0V VOUT = 2.8V VOUT = 2.5V VOUT = 1.8V VOUT = 1.5V 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100 1000 f (kHz) VOUT = 1.5V VIN = 2.5V IOUT = 1mA CBYP = 10nF CIN = 1µF TJ = 25°C Left to right: COUT = 100µF COUT = 44µF COUT = 22µF COUT = 10µF COUT = 1µF 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100 1000 f (kHz) CBYP = 1nF CBYP = 10nF CBYP = 100nF CBYP = 1µF VOUT = 1.5V VIN = 2.5V IOUT = 1mA CIN = 1µF COUT = 1µF TJ = 25°C 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100 1000 f (kHz) VOUT = 1.5V VIN = 2.5V CIN = 1µF CBYP = 10nF COUT = 1µF TJ = 25°C Top to bottom: IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 1mA 0 10 20 30 40 50 60 70 80 0.01 0.1 1 10 100 1000 f (kHz) VIN = VOUT + 1V CIN = COUT = 1µF CBYP = 10nF IOUT = 1mA TJ = 25°C Top to bottom: VOUT = 1.5V VOUT = 1.8V VOUT = 2.5V VOUT = 2.8V VOUT = 3.0V VOUT = 3.3V 0 10 20 30 40 50 60 70 80 0.01 0.1 1 10 100 1000 f (kHz) VIN = VOUT + 1V CIN = COUT = 1µF CBYP = 100nF IOUT = 1mA TJ = 25°C Top to bottom: VOUT = 1.5V VOUT = 2.5V VOUT = 1.8V VOUT = 2.8V VOUT = 3.0V VOUT = 3.3V |
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