Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Channels per IC:	1 - Single
Voltage - Output:	0.8 V ~ 3.3 V
Current - Output:	1A
Voltage - Input:	1 V ~ 3.6 V
Regulator Type:	Positive Adjustable
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	ISL80111

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Evaluation Boards - Linear Voltage Regulators

The ISL80111EVAL1Z evaluation board is a great tool that can be used to evaluate and test the performance of the ISL80111 linear voltage regulator. The board provides the flexibility to customize the performance of the ISL80111 through user-defined external components including external reference voltage, filter resistance, feedback resistor, and bypass capacitor. Running off of two power supplies and able to deliver up to 400mA output, the ISL80111EVAL1Z evaluation board is an effective solution for applications needing linear voltage regulation from 6.5V to 16V.

Application Field

The ISL80111EVAL1Z evaluation board is suitable for voltage regulation applications that require a highly regulated output voltage with up to 400mA current support. The board is capable of providing accurate output voltage of 6.5V to 16V while providing desirable protection features such as short circuit protection, thermal shutdown, and over-voltage protection. These features make the ISL80111EVAL1Z suitable for a wide variety of applications such as aerospace, medical, and military-grade applications. The board has high efficiency and low power consumption making it suitable for battery-powered applications that require a regulated power source. The board is also capable of supporting high frequency applications thanks to its fast transient response of typically 10 us. These features make the ISL80111EVAL1Z ideal for applications such as LED lighting, power management, and other high frequency applications that require a linear voltage regulator.

Working Principle

The ISL80111EVAL1Z evaluation board works by utilizing the linear voltage regulator ISL80111. The ISL80111 contains an internal voltage reference and power switch which enables the board to very accurately regulate an output voltage from 6.5V to 16V. The reference voltage is selected by an external feedback resistor connected to ground at pin REF, and the power switch is enabled by a control signal applied to pin EN. By default the board operates in the fixed-voltage mode, converting the input voltage to the output voltage selected by the external feedback resistor. The board also supports pulse-width modulation (PWM) control whereby an external PWM signal applied to pin EN is used to modulate the output voltage. This offers greater flexibility for applications that require a variable output voltage.The board also contains a wide range of protection features to ensure the output voltage remains within the safe operating range. If the output voltage should exceed its predetermined voltage limit, current limitation protection will be activated to protect the output voltage from any excessive voltage or current. Likewise, if the ambient temperature should exceed its safe operating temperature, thermal shutdown will be activated to protect the system from any potential thermal damage.

Conclusion

The ISL80111EVAL1Z evaluation board is an effective and reliable solution for applications requiring a linear voltage regulator with up to 400mA current support. Its support of both fixed-voltage mode and PWM control provides flexibility for applications that require variable output voltage or constant output voltage. The board also provides protection features including short circuit protection, thermal shutdown, and over-voltage protection to ensure the output voltage remains within the safe operating range. Its high efficiency and low power consumption makes it suitable for battery-powered applications as well making it a great choice for a wide range of applications.

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