The S-85V1AB11-I6T1U is a step-up DC/DC converter IC manufactured by ABLIC U.S.A. Inc. This converter is designed to boost a low input voltage to a higher, regulated output voltage. It is optimized for battery-powered applications, particularly those requiring a stable voltage for sensitive electronic components. Its key features include high efficiency, low quiescent current, and a small package size.

Applications:

• Boosting voltage in battery-powered devices
• Powering LCD displays
• Driving LEDs
• Portable electronic devices
• Energy harvesting applications

Features:

• Input voltage range: 0.9V to 6.0V
• Output voltage: Fixed (determined by the part number, in this case related to 1.1V - further research needed)
• High efficiency: Up to 90%
• Low quiescent current: 6 μA (typical)
• Oscillation frequency: 1.2 MHz
• Small package: SOT-26
• Protection features: Overcurrent protection

Benefits:

• Efficient voltage conversion: The high efficiency minimizes power loss, extending battery life.
• Stable output voltage: Provides a regulated output voltage, ensuring reliable operation of connected devices.
• Low power consumption: The low quiescent current reduces power drain when the converter is not actively boosting the voltage.
• Compact size: The small SOT-26 package saves valuable board space.
• Protection against overcurrent: The overcurrent protection feature prevents damage to the IC and connected components.

Additional Details:

The S-85V1AB11-I6T1U operates at a fixed oscillation frequency of 1.2 MHz, allowing for the use of small external components. It integrates a built-in MOSFET for switching. The output voltage is fixed and determined by the specific variant of the S-85V1 series. Further research into the exact output voltage for the AB11 variant would be beneficial. This step-up DC/DC converter is ideal for applications needing a compact and efficient solution for boosting voltage from low-voltage sources.