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L6983 数据表(PDF) 1 Page - STMicroelectronics |
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L6983 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 63 page  QFN16 (3 x 3 mm) Features • 3.5 V to 38 V operating input voltage • Output voltage from 0.85 V to VIN • 3.3 V and 5 V fixed output voltage versions • 3 A DC output current • 17 μA operating quiescent current • Internal compensation network • Two different versions: LCM for high efficiency at light loads and LNM for noise sensitive applications • 2 μA shutdown current • Internal soft-start • Enable • Overvoltage protection • Output voltage sequencing • Thermal protection • 200 kHz to 2.2 MHz programmable switching frequency. Stable with low ESR capacitor • Optional spread spectrum for improved EMC • Power Good • Synchronization to external clock for LNM devices • QFN16 package Applications • Designed for 24 V buses industrial power systems • 24 V battery powered equipment • Decentralized intelligent nodes • Sensors and always-on applications • Low noise applications Description The L6983 is an easy to use synchronous monolithic step-down regulator capable of delivering up to 3 A DC to the load. The wide input voltage range makes the device suitable for a broad range of applications. The L6983 is based on a peak current mode architecture and is packaged in a QFN16 3x3 with internal compensation thus minimizing design complexity and size. The L6983 is available both in low consumption mode (LCM) and low noise mode (LNM) versions. LCM maximizes the efficiency at light-load with controlled output voltage ripple so the device is suitable for battery-powered applications. LNM makes the switching frequency constant and minimizes the output voltage ripple for light load operations, meeting the specification for low noise sensitive applications. The L6983 allows the switching frequency to be selected in the 200 Hz - 2.2 MHz range with optional spread spectrum for improved EMC. Maturity status link L6983 38 V, 3 A synchronous step-down converter with 17 µA quiescent current L6983 Datasheet DS13116 - Rev 1 - October 2019 For further information contact your local STMicroelectronics sales office. www.st.com |
类似零件编号 - L6983 |
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类似说明 - L6983 |
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