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Texas Instruments - Low-dropout voltage regulator withstands and maintains regulation during voltage transients (TPS7A19)

Post Date: 2016-12-28

Summary

The Texas Instruments’ TPS7A19 is a low-dropout linear regulator (LDO) with a wide input voltage (VIN) range up to 40V, capable of sourcing high output current (IOUT) up to 450mA.

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The Texas Instruments’ TPS7A19 is a low-dropout linear regulator (LDO) with a wide input voltage (VIN) range up to 40V, capable of sourcing high output current (IOUT) up to 450mA. This voltage regulator is ideal for generating a low-voltage supply from wide input-voltage rails. Not only does the device supply a well-regulated voltage rail, but the device also withstands and maintains regulation during voltage transients by acting as a simple surge protection circuit.

The device consumes only 15µA of quiescent current (IQ) at light loads, thereby lowering the power consumption for always-on or battery-powered applications. It features integrated thermal shutdown and overcurrent protection. It also offers a power good output (PG) with a programmable delay that indicates when the output voltage is in regulation. This feature is useful for power-rail sequencing functions.

This LDO is available in a small, 3mm × 3mm, thermally-enhanced, 8-pin SON package.

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