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TPS7A19 Low-Dropout Linear Regulators

By Texas Instruments 91

TPS7A19 Low-Dropout Linear Regulators

Texas Instruments' TPS7A19 is a low-dropout linear regulator (LDO) with a wide input voltage (VIN) range up to 40 V, capable of sourcing high output current (IOUT) up to 450 mA. This voltage regulator is ideal for generating a low-voltage supply from wide input-voltage rails. Not only does the TPS7A19 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 TPS7A19 consumes only 15 µA of quiescent current (IQ) at light loads, thereby lowering the power consumption for always-on or battery-powered applications.

The TPS7A19 features integrated thermal shutdown and overcurrent protection. The TPS7A19 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, 3 mm x 3 mm, thermally enhanced, 8-pin SON package.

Features
  • Wide input voltage range: 4 V to 40 V
  • Adjustable output voltage: 1.5 V to 18 V
  • Output current: 450 mA
  • Low quiescent current (IQ): 15 µA
  • Low dropout voltage: 450 mV (max.) at 400 mA
  • Power good with programmable delay
  • Thermal shutdown and overcurrent protection
  • Stable with ceramic output capacitors:
    • 10 µF to 500 µF for VOUT ≥2.5 V
    • 22 µF to 500 µF for VOUT <2.5 V
  • Operating temperature: -40°C to 125°C
  • Package: 3 mm x 3 mm SON-8

New Products:

TPS7A1901DRBTTPS7A1901EVM-760

Tags:

General PurposePower & Circuit ProtectionTexas Instruments

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