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ISL9014IRGCZ-T Application Field and Working Principle

The ISL9014IRGCZ-T is a linear voltage regulator from Intersil Corporation, a global leader in analog, mixed-signal and precise timing solutions. The ISL9014IRGCZ-T is a single-channel, adjustable output low-dropout linear regulator designed for systems that require precision voltage regulation and low startup current. The device is specified over the industrial temperature range of -40°C to +85°C, and offers a wide input voltage operating range of 3.3V to 60V. The ISL9014IRGCZ-T is available in small 2-mm x 2-mm. 8-Pin WDFN package.

Application Field

The ISL9014IRGCZ-T is designed for a variety of applications including PC motherboards, wireless communications, digital audio/visual equipment and embedded systems. The device is especially suitable for battery-powered applications. By providing precision voltage regulation and low startup current, the ISL9014IRGCZ-T can extend the battery life and reduce battery costs.

Characteristics

The ISL9014IRGCZ-T offers several advanced features, such as low noise, low power dissipation and fast load transients. It also has a low-output voltage dropout of 150mV at 1A and offers an adjustable output voltage range of 0.75V to 11V. The device includes short-circuit over-current protection, over temperature protection and under voltage lock out.

The device is available in a 10-lead, Pb-free, WDFN package with a green body color and Pb-free (RoHS compliant) product marking. The device is rated for an industrial temperature range of -40°C to +85°C.

Working Principle

The ISL9014IRGCZ-T is an adjustable single-channel linear voltage regulator with low-dropout and fast transient response, designed for battery-powered applications. The low quiescent current design and low dropout voltage ensure efficient operation from a wide range of input voltages. The device features an integrated voltage reference, P-Channel MOSFET pass transistor and on-chip over-temperature protection.

The device operates by comparing the regulated output voltage to an external, factory programmable voltage reference. The output voltage is adjusted by programming the reference voltage. The output voltage is programmed by setting external resistors.

The integrated voltage reference is stable over time and temperature variations only if the reference voltage is set correctly. If a higher output voltage is desired, it can be achieved by increasing the reference voltage.

The pass transistor is an N-Channel MOSFET which is employed to provide low-dropout voltage. The current limit is set by the external sense resistor and is adjustable over a wide range. The over-temperature protection circuit is designed for reliable operation over temperature extremes.

Conclusion

The ISL9014IRGCZ-T is a linear voltage regulator from Intersil Corporation that offers a wide operating temperature range and is suitable for a variety of applications. The device features low-dropout voltage, low-quiescent current, fast transient response and stable over temperature variations. Its advanced features make it an ideal choice for applications that require precision voltage regulation, low startup current and low power dissipation.

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