STEVAL-ISA063V2

STEVAL-ISA063V2 is a demonstration board that implements a typical buck-boost DC-DC converter based on STMicroelectronics’ STBB1-APUR high efficiency single inductor dual mode buck-boost DC-DC converter. The device is fixed frequency and capable of providing output voltages ranging from 1.2V to 5.5V and input voltages from 2.0V to 5.5V. The STBB1-APUR can operate with input voltages higher than, equal to, or lower than the output voltage, rendering the product suitable for single lithium-ion (Li-Ion), multicell alkaline or NiMH applications where the output voltage is within the battery voltage range. The integrated low-RDSon N-channel and P-channel MOSFET switches contribute to its high efficiency.

• 2% DC feedback voltage tolerance
• Synchronous rectification
• Shutdown function
• 1.5MHz switching frequency
• Power save mode at light load
• Typical efficiency is greater than 94%
• 1A output current capability
• Shutdown current is less than 1μA