ISL9007IUNZ

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ISL9007IUNZ Application Field and Working Principle

The ISL9007IUNZ is a wide input range low dropout linear regulator capable of supplying up to 150mA of load current. The device features a very low dropout voltage of 0.2V, allowing for a more efficient system design. This regulator is ideal for applications that require low power, high efficiency and fast regulation. It is available in a variety of packages including low-profile, TO-220 and SOT-223 packages.

Applications

The ISL9007IUNZ is suitable for a variety of portable and consumer electronics applications, including mobile phones, tablets, digital audio/video players, handheld gaming and consumer cameras. It is also ideal for low power automotive and industrial applications.

Features

• Wide input operating range: 4.5-18V
• Output voltage adjustable from 1.8-5.5V in 50mV increments
• Low dropout: 0.2V (typical)
• High accuracy over temperature range
• Low ground current: 10μA (typical)
• Soft-start and current limit protection
• TTL shutdown mode
• Thermal shutdown protection

Working Principle

The ISL9007IUNZ regulator is a linear voltage regulator that operates by drawing current from an external power source through a series of resistors, providing a steady output voltage regardless of input voltage fluctuations or changes in load current. The series configuration of resistors form a voltage divider, which is used to set the output voltage.

This regulator also utilizes a P-channel MOSFET in order to minimize the voltage drop across the series resistors. This reduces the power loss due to the voltage drop, increasing overall efficiency. Additionally, the low dropout characteristics of the regulator allow it to maintain regulation at a lower input voltage, which is ideal for applications utilizing limited power sources.

In addition to the voltage regulator circuit, the ISL9007IUNZ includes a number of protection features, including an adjustable current limit function, an adjustable soft-start function, and thermal shutdown protection. These features add an extra layer of safety and reliability to the device.

Conclusion

The ISL9007IUNZ is a low dropout linear voltage regulator capable of supplying up to 150mA of load current with a wide input range of 4.5-18V. The device features a very low dropout voltage of 0.2V, allowing for a more efficient system design. It is available in a variety of packages including low-profile, TO-220 and SOT-223 packages. The ISL9007IUNZ is suitable for a variety of portable and consumer electronics applications, including mobile phones, tablets, digital audio/video players, handheld gaming and consumer cameras. Additionally, the regulator offers a number of protection features, including an adjustable current limit, adjustable soft-start, and thermal shutdown protection.

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