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TPS7A19

ACTIVE

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

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Data sheet

TPS7A19

ACTIVE
Data sheet Order now

Product details

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
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
VSON (DRB) 8 9 mm² (3 mm × 3 mm)
  • 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

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.

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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Technical documentation

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* Data sheet TPS7A19 40-V, 450-mA, Wide VIN, Low IQ, Low-Dropout Voltage Regulator with Power Good datasheet (Rev. A) PDF | HTML Sep 30, 2016
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) Mar 21, 2018

Design & development

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Evaluation board

TPS7A1901EVM-760 — TPS7A19 40-V 450-mA low-IQ LDO linear regulator evaluation module

The TPS7A1901EVM-760 evaluation module is designed for a typical configuration to evaluate the operation and performance of the TPS7A19 40-V, 450-mA, High-Voltage, Ultra-Low IQ Low-Dropout Regulator.

The EVM circuit board is configured to be a reference design for engineering applications requiring (...)
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TPS7A1901 PSpice Transient Model (Rev. A)

SBVM622A.ZIP (85 KB) - PSpice model
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Simulation model

TPS7A1901 Unencrypted PSpice Transient Model (Rev. A)

SBVM623A.ZIP (3 KB) - PSpice model
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Reference design

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