ON Semiconductor KA78XX series Voltage Regulators

Features and Applications of KA78XX series Voltage Regulators

The purpose of this article is to briefly illustrate what is possible with Voltage Regulators and the features and applications of these regulators manufactured by ON Semiconductor under the KA78XX series.

Applications

  • Portable electronics
Associated Products

Part NumberDescriptionStockRFQ
KA7805ETUIC REG LINEAR 5V 1A TO220AB9000RFQ
KA7805AEIC REG LINEAR 5V 1A TO220AB0RFQ
KA7805AETUFAIRCHILD SEMICONDUCTOR KA7805AETU Linear Voltage Regulator, 7805, Fixed, 10V To 35V In, 5V And 1A Out, TO-220-350RFQ
KA7805ETSTUIC REG LINEAR 5V 1A TO220AB0RFQ
KA7805AETSTUIC REG LINEAR 5V 1A TO220AB0RFQ
KA7805ERTMLinear Voltage Regulators REGULATOR 1.0A 4%15000RFQ
KA7805ERTFFAIRCHILD SEMICONDUCTOR KA7805ERTF Linear Voltage Regulator, 7805, Fixed, 10V To 35V In, 5V And 1A Out, TO-252-387500RFQ
Technical Documents

This article introduces the voltage regulator series and difference with shunt regulator.

Series Voltage Regulator and Difference with Shunt Regulator - Basic Electronics


The KA78XX series regulators operate on the principle of a fixed voltage drop across a series resistor that is in turn supplied by an unregulated DC input voltage. The output voltage is set by an internal reference voltage that is compared to a fraction of the output voltage by a feedback circuit. Any changes in the output voltage will be detected and adjusted by the feedback circuit to maintain a constant output voltage.

Features

The main features of KA78XX series Voltage Regulators may be summarized as follows:

1. Output voltage options: 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, 24V

2. Output current capability up to 1.5A

3. Input voltage range: up to 35V

4. Thermal overload protection

5. Short circuit protection

6. Low dropout voltage

Applications

  • Power supplies for electronic equipment

  • Voltage regulation for battery-powered devices

  • Voltage stabilization for industrial automation systems

  • Voltage regulation for automotive applications

The KA78XX series features a variety of output voltage options, with current capability up to 1.5A, thermal overload, and short circuit protection. These features make it an ideal choice for a wide range of applications that require a stable and regulated DC power supply.


Frequently Asked Questions

What is the input voltage range for the KA78XX series Voltage Regulator?

The input voltage range for the KA78XX series is 10V to 35V.

What is the dropout voltage of the KA78XX series Voltage Regulator?

The dropout voltage of the KA78XX series is typically 2V to 2.5V.

What is the maximum junction temperature for the KA78XX series Voltage Regulator?

The maximum junction temperature for the KA78XX series is 125°C.