Overview of KA2Z8RXXC-Series Voltage Regulators
The KA2Z8RXXC-Series are low dropout (LDO) voltage regulators from Fairchild Semiconductor, supporting output currents up to 2A. Available in a TO-220 full-mold 4-pin package, they are appropriate for a wide range of electronic devices, delivering steady voltage outputs of 3.3V, 5V, or 12V. An additional part, the KA2Z8RAOSC, offers an adjustable output range between 1.27V and 32V. Each regulator includes multiple protective features, such as over-current protection, thermal shutdown, over-voltage protection, and short-circuit protection. Furthermore, an output disable function enhances its application flexibility.
Key Features
The series boasts significant characteristics essential for power regulation in electronic equipment:
– Low Dropout: Operating with a dropout voltage of less than 0.5V at full-rated current.
– Thermal Protection: Built-in thermal shutdown to prevent overheating.
– Circuit Protection: Integration of over-current, over-voltage, and short-circuit protection to safeguard the device.
– Comprehensive Lineup: Inclusion of both fixed and adjustable voltage regulators to cater diverse applications.
Operating Parameters
The LDOs come with an operating temperature range of -20°C to 80°C. Notably, the input voltage should not exceed 35V, and output disable voltage is rated at the same level for the KA278RXXC variant. The absence of a heat-sink limits the power dissipation to 1.5W, while with a heat-sink it can handle up to 15W. They are designed to handle a maximum junction temperature of 150°C. For their sizes, they offer favorable thermal resistance from junction-to-case and junction-to-air, ensuring efficient thermal management within compact footprints.
Ordering Information and Absolute Maximum Ratings
The datasheet details specifics on ordering, including part numbers such as KA278R33CTU and KA278R12CYDTU, along with appropriate packaging and recommended operating temperature ranges. Absolute maximum ratings outline the stress limits for the voltage regulators, with the emphasis that surpassing these may impair device performance or longevity.
This summary furnishes potential buyers and electronic designers with essential specifications and features of the KA2Z8RXXC-Series LDO voltage regulators, guiding them to make informed decisions based on the operational needs of their electronic devices.
References:
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