The AME8819BEFT250Z is a low dropout (LDO) linear regulator manufactured by Analog Microelectronics. It is designed to provide a stable and regulated output voltage of 2.5V with a low dropout voltage, making it suitable for battery-powered applications and other systems where efficiency and space are critical. This regulator is part of the AME8819 family, known for its small size, low quiescent current, and excellent transient response.

Applications:

• Battery-powered devices: Ideal for use in portable electronics, smartphones, tablets, and wearable devices.
• Microcontroller power supplies: Provides a stable voltage source for microcontrollers and other digital ICs.
• Wireless communication devices: Suitable for powering RF transceivers and other wireless communication components.
• Low-noise applications: Can be used in audio equipment and other sensitive applications where low noise is required.
• Post-regulation for switching power supplies: Improves the output ripple and noise performance of switching regulators.

Features:

• Low Dropout Voltage: Operates with a very small difference between input and output voltage, maximizing battery life.
• Stable with Ceramic Capacitors: Ensures stability with small, low-ESR ceramic output capacitors, saving board space and cost.
• Low Quiescent Current: Consumes minimal current in standby mode, extending battery life.
• Over Current Protection: Protects the regulator and the load from damage in case of an overload or short circuit.
• Over Temperature Protection: Shuts down the regulator in case of excessive temperature, preventing thermal damage.
• Fixed Output Voltage: Provides a precise and stable 2.5V output voltage.
• Small Package: Available in a compact package, making it suitable for space-constrained applications.

Benefits:

• Extended Battery Life: The low dropout voltage and low quiescent current help to maximize battery life in portable devices.
• Improved System Performance: The stable output voltage ensures reliable operation of downstream components.
• Reduced Board Space: The small package size and compatibility with ceramic capacitors save board space and cost.
• Enhanced Reliability: The overcurrent and overtemperature protection features protect the regulator and the load from damage.
• Simplified Design: The fixed output voltage simplifies the design process and reduces the number of external components required.

Technical Specifications:

The AME8819BEFT250Z typically operates with an input voltage range of 2.5V to 5.5V. It delivers a fixed output voltage of 2.5V with a guaranteed output current. The dropout voltage is typically very low at the rated output current. It also features a low quiescent current, typically in the microampere range. The regulator is available in a small SOT-23 package.