PROMO STMICROELECTRONICS STEVAL-ISA152V1

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STMicroelectronics STEVAL-ISA152V1
Evaluation board is a step-down switching power supply based on the L7987 regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8V. Low drop-out operation with almost 100% duty cycle, can be achieved. The L7987 is a 61V, 3A step-down asynchronous switching regulator with embedded power MOSFET cable of delivering up to 3A of current, depending on the application conditions. The embedded switch-over feature on the VBIAS pin and the light load management (pulse skipping) are intended to maximize power conversion efficiency across the entire load range. The soft-start, current limit threshold and the switching frequency are adjustable for application optimization. The device includes an internal 250KHz oscillator that can be externally adjusted up to 1.5MHz, two L7987 regulators can be synchronized in a 180° out-of-phase configuration for reduced total input RMS current.
- 3.3V output voltage, 3A DC output current
- 4.5V to 60V input voltage
- 3.5ms programmed soft-start
- VBIAS switch-over for improved efficiency at light load
- Open drain PGOOD available
- Auto recovery overcurrent and thermal protection
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