ST ISA063V1 User Manual
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STEVAL-ISA063V1 |
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1 A high efficiency single inductor DC-DC converter |
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based on the STBB1XX |
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Data brief |
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Features |
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■ Buck-boost DC-DC converter |
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■ Operating input voltage range: 2.0 V to 5.5 V |
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■ 2% DC feedback voltage tolerance |
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Synchronous rectification |
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Shutdown function |
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■ 1.5 MHz switching frequency |
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■ Power save mode at light load |
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Typical efficiency: > 94% |
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■ 1 A output current capability |
STEVAL-ISA063V1 |
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■ Shutdown current < 1 µA |
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RoHS compliant |
AM03157 |
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Description
The STEVAL-ISA063V1 demonstration board represents a typical buck-boost DC-DC converter application, intended to demonstrate the function and performance of the STBB1XX device. The STBB1XX is a fixed frequency, high efficiency DcDC converter 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 STBB1XX device can operate with input voltages higher than, equal to, or lower than the output voltage, making the product suitable for single Li-ion, multi-cell alkaline or NiMH batterypowered applications where the output voltage is within the battery voltage range. The integrated low RDSON N-channel and P-channel MOSFET switches contribute to the high efficiency of the STBB1XX device.
June 2009 |
Doc ID 15887 Rev 1 |
1/4 |
For further information contact your local STMicroelectronics sales office. |
www.st.com |
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Schematic circuit |
STEVAL-ISA063V1 |
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1 Schematic circuit
Figure 1. Schematic diagram
AM03158
2/4 |
Doc ID 15887 Rev 1 |
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