TLV70509YFPR

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TLV70509YFPR Application Field and Working Principle

TLV70509YFPR is a three-pin micropower, low-noise linear voltage regulator which belongs to linear voltage regulators. It is suitable for low voltage, low power, battery backup applications.

Features

TLV70509YFPR is available in fixed output voltage option of 1.3V, 1.5V, 1.8V, and 2.5V and a wide temperature range of -40°C to +125°C. It offers a low dropout voltage ( typ. 0.55V@100mA ) and an ultra-low ground current also, it comes with high PSRR, low output noise and fast transient response. The device quiescent current typically is only 6μA. In addition, it includes an enable/shutdown pin, reverse input protection, and thermal overload protection.

Applications

• Telecommunication
• Portable Instruments
• Industrial
• Computers
• Portable Battery-powered
• Consumer
• Computer and Peripheral
• Medical
• Automotive

Working Principle

The operating principle of the TLV70509YFPR linear regulator is a basic three-terminal voltage regulator circuit. It consists of an error amplifier, a P-channel MOSFET, a divider network, and a control element that senses the voltage drop across the sense resistor. When the voltage at the regulator output exceeds the voltage at the feedback input, the error amplifier drives the P-channel MOSFET to reduce the output voltage. Conversely, if the output falls below the input, the error amplifier causes the P-channel MOSFET to increase the output voltage. The error amplifier senses the voltage applied to the feedback pin and compares it to the voltage on the divider connected to the output. If the two values are not equal, the output voltage will be changed until they meet.

The TLV70509YFPR linear regulator has a wide input voltage range, which can provide good impedance performance with low noise and low ripple. Moreover, it features low quiescent current, high PSRR, and fast transient response.

Conclusion

TLV70509YFPR is a three-pin micropower, low noise linear voltage regulator suitable for low voltage, low power, battery backup applications. It offers a wide input voltage range, low dropout voltage, ultra-low ground current, high PSRR, low output noise, and fast transient response. This device is suitable for use in portable instruments, industrial, computers, portable battery-powered, consumer, computer and peripheral, telecommunication, automotive and medical applications.

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