TL70022

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Part Status:	Active

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The TL70022 is an integrated power management circuit with multiple output voltage regulator systems. It is designed to provide a high accuracy, low noise and high efficiency supply for various applications where regulated power, battery backed up voltage, or voltage sequencing are required. The circuit contains an on-chip DC-DC converter, a voltage regulator, a step-up DC-DC converter, a PWM buck/boost converter, a 5V power supply and a battery charging circuit.The TL70022 is suitable for a range of applications, such as LCD monitor backlighting, automotive power supplies, industrial control systems, computer peripherals, communications and consumer electronics. The TL70022 is specifically designed to be used in mobile and portable devices, where size, weight and power efficiency are of critical importance.The output voltage regulator system of the TL70022 typically operates at a switching frequency of about 200kHz. This allows a fast transient response, since the transient response of a switching regulator system is proportional to its switching frequency. The TL70022 can provide output voltages ranging from 1.9V to 5.5V, with a maximum output current of up to 1A. The TL70022 is capable of providing high efficiency up to 90%.The TL70022 also contains an on-chip power management unit (PMU), which allows the user to configure and monitor the power supply system. The PMU includes features such as adjustable soft-start, manual or automated voltage stages, and various monitoring features. This makes the TL70022 an ideal solution for applications where precise control and monitoring of the power supply is required.In addition, the TL70022 contains an integrated battery charging circuit which allows for charging of both Li-Ion and Ni-MH batteries. The charge circuit consists of a pre-charge current, a constant current, and a constant voltage charging stage. The pre-charge current limits the surge current during charging, while the constant current and voltage stages regulate the battery voltage and current to optimize its performance and lifetime.The TL70022 is available in a number of packages including, 28-pin SOIC, 48-ball WLCSP and 80-pin QFN. These packages enable the integration of the power supply into various applications, providing a solution with reduced board space and increased performance.In conclusion, the TL70022 is an integrated power management circuit with multiple output voltage regulator systems. Its adjustable soft-start and manual or automated voltage stages, make it an ideal solution for applications where precise control and monitoring of the power supply is required. The TL70022 is suitable for a range of applications, such as LCD monitor backlighting, automotive power supplies, industrial control systems, computer peripherals, communications and consumer electronics. With its integrated battery charging circuit and various packages available, the TL70022 provides a reliable and efficient power supply solution.

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