TPS63011YFFR

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The TPS63011YFFR is an application-specific integrated circuit (ASIC) that belongs to the family of power management integrated circuits (PMICs), specifically voltage regulators, functional as DC-DC switching regulators. The device is a multi-mode synchronous step-down converter featuring adjustable and fixed output voltages and includes an integrated LDO pre-and post-regulator. It is optimized for low output noise and thermal performance. The operating temperature range and package types of TPS63011YFFR differ depending on the version number.

The key features of the TPS63011YFFR include adjustable output voltage between 0.8V and 5.5V, up to 1.5MHz switching frequency, 1.2A continuous output current and 2A peak output current, low-noise step-down converter. The integrated low-dropout pre-regulator and ultra-low Iq post-regulator reduce the quiescent current, increasing efficiency and performance. External compensation and programmability of the switching frequency through external clock input or resistor help ease the design-in process.

The most common application for the variable output voltage mode is for DVD writers and memory cards, where the voltage requirements can change during runtime. Outputs as low as 0.8V help in this application. Additionally, the TPS6311YFFR is also suitable for powering smart TVs and 3D TVs using a low-noise regulator, as well as powering high-frequency applications such as Bluetooth connections or IEDs. Other applications are portable media players, cars, and smart phones.

The TPS63011YFFR is a synchronous buck regulator featuring an integrated feedback loop consisting of a voltage reference, an error amplifier, a gm stage and a resistor that are used to set the output voltage. It also features an integrated low-dropout pre-regulator and an ultra-low Iq post-regulator to increase efficiency and minimize output ripple. It uses two external N-MOSFETs in a synchronous manner, one connected from OUT to GND and the other from IN to OUT, and works at a frequency in the range of 100 kHz to 1.5 MHz.

The TPS63011YFFR device is capable of operating in 4 different operating modes. In PFM mode, the duty cycle is modulated by the demand of the load and no external clock signal is required. If a signal is present at the REF/CLK pin, the system automatically enters a forced PFM mode in which the average switch duty cycle is kept between 0.5 and 0.95. The third mode is PWM mode, where a fixed switching frequency is applied. In this mode, the duty cycle is modulated by the current demand of the load. Finally, in PWM light-load mode, the device operates at very low duty cycle, with no pulses skipped or generated. This mode helps provide a low output noise and low power consumption when the device is operating under light load conditions.

The TPS63011YFFR is the perfect solution for providing a stable power source for numerous consumer-electronic applications. Thanks to its multiple operating modes, adjustable and fixed output voltages, and integrated pre- and post-regulator, the device helps reduce noise, maximize efficiency, and minimize footprint and cost, making it an ideal choice for high-performance and low-power applications.

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