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STEVAL-ISA198V1 датащи(PDF) 1 Page - STMicroelectronics |
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STEVAL-ISA198V1 датащи(HTML) 1 Page - STMicroelectronics |
1 / 4 page November 2016 DocID030001 Rev 1 1/4 For further information contact your local STMicroelectronics sales office www.st.com STEVAL-ISA198V1 2 A step down DC - DC switching regulator (VIN = 4.5 V to 60 V) based on the L7987L Data brief Features 4.5 V to 60 V input voltage Step-down (buck) conversion 5 V output voltage (VIN > 6 V) Up to 2 A DC output current 500 kHz switching frequency 5 ms programmed soft-start Compliant with ceramic output capacitors 180° out of phase synchronization available Auto recovery overcurrent and thermal protection RoHS compliant Description The STEVAL-ISA198V1 product evaluation board is a step-down switching power supply based on the L7987L regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8 V. Low drop-out operation, due to the advanced integrated switch management, can be achieved. The L7987L is a 61 V, 2 A step-down asynchronous switching regulator with embedded power MOSFET capable of delivering up to 2 A of current, depending on the application conditions. The embedded switch-over feature on the VBIAS pin and the light load management (pulse skipping) help maximize power conversion efficiency across the entire load range. The soft-start, current limit threshold and switching frequency are adjustable for application optimization. The device includes an internal 250 kHz oscillator that can be externally adjusted up to 1.5 MHz; two L7987L regulators can be synchronized in a 180° out-of-phase configuration for reduced total input RMS current. |
Аналогичный номер детали - STEVAL-ISA198V1 |
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Аналогичное описание - STEVAL-ISA198V1 |
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