The ZXCL280E5 is a low quiescent current LDO (Low Dropout) linear regulator manufactured by Zetex Semiconductors (now part of Diodes Incorporated). It is designed to provide a stable and efficient voltage supply for battery-powered devices and other low-power applications. This regulator features a very low dropout voltage, allowing it to operate effectively even when the input voltage is only slightly higher than the desired output voltage. Its low quiescent current minimizes power consumption, extending battery life.

Applications:

• Battery-powered equipment
• Portable electronics
• Wireless devices
• Microcontroller power supplies
• Sensor power supplies
• IoT (Internet of Things) devices

Features:

• Low dropout voltage
• Low quiescent current
• Fixed output voltage (typically 3.3V or 5V)
• Short-circuit protection
• Over-temperature protection
• Stable with ceramic output capacitors
• Small SOT25 package

Benefits:

• Extended battery life: Low quiescent current minimizes power consumption in battery-powered applications.
• Stable output voltage: Provides a consistent and reliable voltage supply for sensitive electronic components.
• Efficient operation: Low dropout voltage enables efficient regulation even with low input voltages.
• Protection features: Short-circuit and over-temperature protection enhance system reliability.
• Small size: SOT25 package saves valuable board space.

Technical Specifications:

The ZXCL280E5 typically offers a fixed output voltage of 3.3V or 5V, depending on the specific variant. Its low dropout voltage, usually in the range of 100mV to 200mV at the rated output current, ensures efficient operation even with a small difference between the input and output voltages. The quiescent current is typically in the microampere range, minimizing power consumption. The regulator incorporates short-circuit protection to prevent damage in case of an output short. Over-temperature protection shuts down the regulator if it exceeds a certain temperature threshold. It is designed to be stable with ceramic output capacitors, which are commonly used in modern electronic devices. The ZXCL280E5 is available in a small SOT25 package, making it ideal for space-constrained applications. It generally supports an input voltage range from 2.5V to 5.5V and an output current of up to 150mA.