The S-1312A31-A4V1U3 is a high-accuracy, low current consumption positive voltage regulator manufactured by SII Semiconductor Corporation. It is designed to provide a stable and regulated 3.1V output voltage, even with variations in input voltage and load current. This regulator is suitable for a wide range of portable and battery-powered applications where efficiency and precision are crucial.

Applications

• Mobile phones and smartphones
• Wireless communication devices
• Portable audio players
• Digital cameras and camcorders
• Wearable devices such as smartwatches and fitness trackers
• IoT (Internet of Things) devices

Features

• Output Voltage: 3.1V fixed output voltage.
• High Accuracy: Provides a highly accurate output voltage.
• Low Current Consumption: Minimizes power consumption, extending battery life.
• Low Dropout Voltage: Operates with a small difference between input and output voltage.
• Overcurrent Protection: Protects the regulator and the load from excessive current.
• Thermal Shutdown: Protects the regulator from overheating.
• A4V1U3 Package: HSNT-4(1010) package, a small and thin surface-mount package.

Benefits

• Stable and Reliable Power Supply: Ensures consistent performance of connected devices.
• Extended Battery Life: Low current consumption maximizes operating time in portable applications.
• Protection Against Faults: Overcurrent and thermal shutdown prevent damage to the regulator and load.
• Compact Design: Small package allows for use in space-constrained devices.
• Simplified Circuit Design: Requires minimal external components.
• Improved System Reliability: Protects against voltage fluctuations and overcurrent conditions.

Additional Details

The S-1312A31-A4V1U3 operates with an input voltage typically slightly higher than 3.1V. The dropout voltage is low, allowing the regulator to function even when the input voltage is close to the output voltage. External capacitors at the input and output are recommended for stability and transient response. The datasheet provides details on the recommended capacitor values and types. The HSNT-4(1010) package is designed for surface mounting. Proper soldering techniques are essential for reliable connection. The operating temperature range and maximum power dissipation are specified in the datasheet. The regulator is designed to be RoHS compliant.