TPS7A19

ACTIVE

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

Product details

Output options Adjustable Output Iout (max) (A) 0.45 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 18 Vout (min) (V) 1.5 Iq (typ) (mA) 0.015 Thermal resistance θJA (°C/W) 48 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.45 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 18 Vout (min) (V) 1.5 Iq (typ) (mA) 0.015 Thermal resistance θJA (°C/W) 48 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • 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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Type Title Date
* Data sheet TPS7A19 40-V, 450-mA, Wide VIN, Low IQ, Low-Dropout Voltage Regulator with Power Good datasheet (Rev. A) PDF | HTML 30 Sep 2016
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
EVM User's guide TPS7A19 EVM User's Guide 20 Jun 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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 (...)
User guide: PDF
Not available on TI.com
Simulation model

TPS7A1901 PSpice Transient Model (Rev. A)

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

TPS7A1901 Unencrypted PSpice Transient Model (Rev. A)

SBVM623A.ZIP (3 KB) - PSpice Model
Reference designs

PMP23146 — 45-W high-power-density active clamp flyback with GaN reference design for server auxiliary power

This reference design is a GaN-based 45-W active-clamp flyback (ACF) targeting maximum power density. This supply is designed to provide auxiliary power in server and telecom power supply units (PSUs). The UCC28782 ACF controller and LMG2610 GaN half-bridge are used to drive a planar transformer (...)
Test report: PDF
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VSON (DRB) 8 View options

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