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SC189LEVB-1 Datasheet(PDF) 11 Page - Semtech Corporation |
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SC189LEVB-1 Datasheet(HTML) 11 Page - Semtech Corporation |
11 / 23 page www.semtech.com © 2009 Semtech Corp. 11 SC189 Output Voltage Ripple (V OUT=3.3V) Transient Response (V OUT=3.3V; 0A to 0.5A) Start Up (Enable)(V OUT=3.3V) Output Voltage Ripple (V OUT=3.3V) Transient Response (V OUT=3.3V; 0.5A to 1.0A) Start Up (Enable)(V OUT=3.3V) VOUT 10mV/div VLX 2V/div ILX 500mA/div 500ns/div Output Voltage Ripple (VOUT=3.3V) VIN=5.0V IOUT=0A V OUT 100mV/div I OUT 500mA/div 50µs/div Transient Response (VOUT=3.3V) VIN=5.0V IOUT=0A to 0.5A V OUT 1V/div 200µs/div Start Up (V OUT=3.3V) V IN=5.0V R OUT=1k V EN 2V/div V IN 5V/div VOUT 10mV/div VLX 2V/div ILX 500mA/div 500ns/div Output Voltage Ripple (VOUT=3.3V) VIN=5.0V IOUT=1.5A V OUT 100mV/div I OUT 500mA/div 50µs/div Transient Response (VOUT=3.3V) VIN=5.0V IOUT=0.5A to 1A V OUT 1V/div 200µs/div Start Up (V OUT=3.3V) V EN 2V/div V IN 5V/div V IN=5.0V R OUT=2.2 Typical Waveforms (continued) Circuit Conditions: V OUT=3.3V (SC189ZULTRT); L= 2.2uH (TOKO: 1071AS-2R2); CIN= COUT= 10uF/6.3V (Murata: GRM21BR60J106K). |
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