Description
The STEVAL-ISA063V2 demonstration board implements a typical buck-boost DC-DC converter based on STMicroelectronics’ STBB1APUR high efficiency single inductor dual mode buck-boost DC-DC converter. The device is fixed frequency and capable of providing output voltages ranging from 1.2 V to 5.5 V and input voltages from 2.0 V to 5.5 V. 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 Pchannel MOSFET switches contribute to its high efficiency. STEVAL-ISA063V2

Features
■ Buck-boost DC-DC converter
■ Operating input voltage range: 2.0 V to 5.5 V
■ 2% DC feedback voltage tolerance
■ Synchronous rectification
■ Shutdown function
■ 1.5 MHz switching frequency
■ Power save mode at light load
■ Typical efficiency: > 94%
■ 1 A output current capability
■ Shutdown current: < 1 µA
■ RoHS compliant