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TPS7A19
  • TPS7A19
  • TPS7A19

TPS7A19

ACTIVE

450-mA, 40-V, low-IQ, adjustable low-dropout voltage regulator with power good & enable

Texas Instruments TPS7A19 Product Info

1 April 2026 2

Parameters

Rating

Catalog

Vin (max) (V)

40

Vin (min) (V)

4

Iout (max) (A)

0.45

Output options

Adjustable Output

Vout (max) (V)

18

Vout (min) (V)

1.5

PSRR at 100 KHz (dB)

45

Iq (typ) (mA)

0.015

Features

Enable, Power good

Thermal resistance θJA (°C/W)

48

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

240

Operating temperature range (°C)

-40 to 125

Package

VSON (DRB)-8-9 mm² 3 x 3

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 × 3-mm SON-8
  • 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 × 3-mm SON-8

Description

The 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 × 3-mm, thermally-enhanced, 8-pin SON package.

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