The AP2112K-2.8TRG1 is a low dropout (LDO) regulator manufactured by BCD Semiconductor. It's designed to provide a stable and regulated 2.8V output voltage from an input voltage as low as 2.5V. This LDO regulator is ideal for various applications where a stable voltage source is required, especially in battery-powered devices and portable electronics due to its low quiescent current and small package size.

Applications

• Portable Electronics: Powers microcontrollers, sensors, and other components in smartphones, tablets, and wearables.
• Battery-Powered Devices: Provides a stable voltage source for battery-operated equipment, such as remote controls and toys.
• Microcontroller Power Supplies: Regulates voltage for microcontrollers in embedded systems and IoT devices.
• Wireless Modules: Powers RF transceivers and other wireless communication modules.
• Sensor Power Supplies: Supplies a stable voltage to sensors in various applications.

Features

• Low Dropout Voltage: Maintains a regulated output voltage with a minimal difference between input and output voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode, extending battery life.
• Over-Current Protection: Protects the regulator and the load from excessive current draw.
• Short-Circuit Protection: Shuts down the regulator in the event of a short circuit to prevent damage.
• Thermal Shutdown: Protects the regulator from overheating by shutting it down when the junction temperature exceeds a safe level.
• Stable with Ceramic Capacitors: Designed to operate with small ceramic output capacitors, reducing board space and cost.

Benefits

• Extended Battery Life: Low quiescent current maximizes battery runtime in portable applications.
• Reliable Power Supply: Provides a stable and regulated voltage, ensuring proper operation of sensitive electronic components.
• Robust Protection: Over-current, short-circuit, and thermal shutdown features protect the regulator and the load from damage.
• Small Footprint: Compact package size minimizes board space requirements.
• Cost-Effective Solution: Provides a reliable and feature-rich voltage regulation solution at a competitive price.

Additional Details

The AP2112K-2.8TRG1 is available in a SOT-23 package. It typically operates over a temperature range of -40°C to +85°C. The input voltage range is typically 2.5V to 5.5V, with a fixed output voltage of 2.8V. The maximum output current is typically 300mA. This regulator is suitable for use with ceramic capacitors, offering stability and minimizing the need for larger, more expensive tantalum capacitors. Its small size and robust protection features make it ideal for space-constrained and demanding applications.