The PQ1KA333MZPH is a 3.3V output, low-dropout (LDO) voltage regulator from Sharp Microelectronics. This regulator is designed to provide a stable and efficient power supply for various electronic devices, particularly those that are battery-powered or require a regulated voltage source. It features built-in overcurrent and overtemperature protection, ensuring reliable operation and preventing damage to both the regulator and the load.

Applications

• Portable electronics: MP3 players, smartphones, and other handheld devices.
• Microcontroller power: Provides a clean and stable voltage source for microcontrollers in embedded systems.
• Wireless modules: Powering Bluetooth, Wi-Fi, and other wireless communication modules.
• Sensors: Regulating the voltage supply for various sensors in industrial and consumer applications.
• Cameras: Powering image sensors and other components in digital cameras.

Features

• 3.3V fixed output voltage: Provides a precisely regulated voltage without external components.
• Low dropout voltage: Allows the regulator to operate with a small difference between input and output voltage.
• Overcurrent protection: Protects the regulator and the load from excessive current.
• Overtemperature protection: Shuts down the regulator if it exceeds a safe operating temperature.
• Compact surface mount package: Allows for efficient use of board space and easy integration.

Benefits

• Extended battery life: Low dropout voltage maximizes efficiency, leading to longer battery life in portable devices.
• Stable and reliable power: Provides a consistent voltage supply, improving the performance and reliability of electronic devices.
• Simplified design: Fixed output voltage and integrated protection features simplify circuit design and reduce component count.
• Enhanced system protection: Overcurrent and overtemperature protection prevent damage from faults and overload conditions.
• Small footprint: Compact package allows for integration into space-constrained applications.

Additional Details

The PQ1KA333MZPH operates with an input voltage range typically from 3.6V to 16V. The low dropout voltage characteristic allows it to maintain regulation even when the input voltage is close to the output voltage. The regulator's overcurrent protection feature limits the output current to a safe level, preventing damage to the regulator and the load in case of a short circuit or overload. The overtemperature protection feature prevents thermal runaway by shutting down the regulator when the junction temperature exceeds a certain threshold. This LDO regulator is ideal for applications where a stable, efficient, and protected power supply is required.