KA7810ETU

Current - Output:	1A
Base Part Number:	KA7810
Supplier Device Package:	TO-220-3
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	71dB (120Hz)
Current - Quiescent (Iq):	8mA
Series:	--
Voltage Dropout (Max):	2V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	10V
Voltage - Input (Max):	35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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PMIC – Voltage Regulators – Linear

The KA7810ETU is a three-terminal regulator designed by STMicroelectronics. It is a low dropout voltage regulator (LDO) of 1A capable of operating from a wide range of input voltages. It is capable of regulating an output voltage from 1.2V to 37V depending on the voltage of the input. The KA7810ETU has a wide range of application fields, such as general-purpose regulators, medical and industrial post-regulators. Additionally, the device is highly suitable for consumer application, such as gaming and portable devices due to its superior efficiency, wide input voltage range, low quiescent current, minimal temperature difference and small size.This article will discuss the working principle and application fields of KA7810ETU with regards to linear voltage regulators.

Working Principle

The KA7810ETU is a three-terminal linear regulator that works on the principle of comparing a reference voltage (VREF) to the feedback voltage (VFB) at the output of the regulator. The error amplifier compares the two voltages and provides a signal to the pass element to adjust the regulation of the output voltage. The output voltage of the regulator is then dependent on the value of the reference voltage. The reference voltage is set by the adjusting terminal (Vadj) according to the output voltage desired. The higher the value of Vadj, the higher the reference voltageand therefore the higher the output voltage. The KA7810ETU also features a current limit circuit and a thermal shutdown circuit at 160°C that provides a protection form over-current and overheating of the regulator.

Application Field

The KA7810ETU is highly suitable for consumer applications due to its superior efficiency, low quiescent current, wide input voltage range and minimal temperature difference. It is well-suited for gaming and portable consumer electronics due to its small size and high efficiency.Additionally, the KA7810ETU is suitable for medical and industrial post-regulators due to its wide input voltage range and its ability to accurately regulate the output voltage. The KA7810ETU also is a frequent choice for general-purpose regulators due to its low quiescent power, low dropout voltage and low temperature co-efficient. In summary, the KA7810ETU is a suitable three-terminal linear regulator capable of regulating an output voltage from 1.2V to 37V depending on the voltage of the input. It has multiple application fields, such as consumer electronics, medical, industrial post-regulators, and general-purpose regulators, due to its superior efficiency, low quiescent current, wide input voltage range and small size. The device operates on the principle of comparing a reference voltage to a feedback voltage and adjusting the output voltage through a pass element.

Conclusion

In conclusion, the KA7810ETU is a highly suitable three-terminal regulator for multiple application fields due to its superior efficiency, low quiescent current, wide input voltage range and small size. The device’s working principle depends on comparing a reference voltage to a feedback voltage of the regulator and adjusting the output voltage through a pass element. The KA7810ETU is a reliable device capable of accurately regulating an output voltage from 1.2V to 37V.

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