TPS77633QPWPREP

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TPS77633QPWPREP Application Field and Working Principle

TPS77633QPWPREP, an ultra-low quiescent current voltage regulator with precision enable control ( PREP ), belongs to Texas Instruments’ PMIC series.It integrates a very low quiescent current linear ( LDO ) regulator with a PWM controller onto a single chip.By cooperatively utilizing both circuits, the TPS77633QPWPREP enables the system to maintain the highest efficiency while greatly reducing the quiescent current.

The TPS77633QPWPREP is designed for LL and S3 states of CPU core and other power management purposes, especially suitable for low-power devices with strict power supply.It integrates both the precise enable control ( PREP ) and low quiescent current linear ( LDO ) regulators, allowing users to reach their desired power management performance targets.It is especially ideal for applications like notebook, tablet and portable devices.

Application Field

The TPS77633QPWPREP is a PMIC ( Power Management IC ) manufactured by Texas Instruments, mostly used in power management and low power device applications, such as notebook, tablet and portable devices.The TPS77633QPWPREP LDO voltage regulator combines a precise enable control and the low quiescent current linear regulator, and it is designed to meet the highest efficiency and the strict power supply requirements.

Working Principle

The TPS77633QPWPREP uses a combination of LDO and WORD ( 1-bit PREP digital control ) to work together to reduce the quiescent current of the system. With the precise enable control, the voltage accuracy can be set independently for both the supply voltage ( VSUP ) and the enable control ( VEN ) pins.The PREP could detect the power supply voltage from the VEN pin, and thus, controlling the output voltage more effectively.

Moreover, the EN pin also has a debounce filter built-in, further enhancing the system’s power management performance.The TPS77633QPWPREP can provide high efficiency and very low quiescent current in both S3 and S0 states, thus, it’s suitable for applications holding tight power constraints.

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