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SC1592IMTR Arkusz danych(PDF) 1 Page - Semtech Corporation |
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SC1592IMTR Arkusz danych(HTML) 1 Page - Semtech Corporation |
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1 / 18 page  1 www.semtech.com POWER MANAGEMENT SC1592 Low Dropout High Performance Adjustable Positive Voltage Regulator Revision: January 27, 2004 Description Features Applications Typical Application Circuit The SC1592 is a 3A low dropout high performance linear voltage regulator, that provides a low voltage, high current output with a minimum of external components, utilizing dual supply configuration. The SC1592 offers a wide input voltage range from 1.25V to 16V and is ideal for applications that need to convert down to 0.8V. Additionally, the SC1592 is fully protected with an exter- nally programmable current limit, and thermal shutdown. Also, there is an EN input which enables or shuts down the device. The SC1592 voltage regulator is available in 7-lead DDPAK and SOIC-8L EDP packages. Wide input range, V IN = 1.25V to 16V, V CNTL = 3V to 16V 3A Guaranteed Output Current 260mV (typ) @ 3A dropout voltage in dual supply mode 1% Initial Accuracy Adjustable output voltage, down to 0.8V Programmable current limiting and thermal shutdown Fast transient response Excellent line and load regulation Power SO-8 and 7-lead DDPAK Low voltage logic supplies Microprocessor and chipset supplies Split plane microprocessor supplies Advanced graphics cards supplies Sound cards and auxiliary power supplies SMPS post regulator C1 1uF C2 10uF R1 100 C3 47uF(cer) R3 53 R2 66.5 +1.8V Vout +3.3V Vcntl +2.5V Vin SC1592 CNTL IN OUT SENSE ILIM EN GND TTL . typ V 8 . 0 V V ) 3 R 2 R 1 ( V REF REF OUT = • + = |
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