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Linear & low-dropout (LDO) regulators

TPS784-Q1

ACTIVE

Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable

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Data sheet

TPS784-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Vin (max) (V) 6 Vin (min) (V) 1.65 Iout (max) (A) 0.3 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 0.75 Fixed output options (V) 0.75, 0.8, 0.85, 1, 1.05, 1.1, 1.2, 1.5, 1.7, 1.8, 2.5, 2.8, 2.9, 3, 3.3, 5 Noise (µVrms) 30 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 61.8, 184.3 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Wettable flanks package Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 115 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 6 Vin (min) (V) 1.65 Iout (max) (A) 0.3 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 0.75 Fixed output options (V) 0.75, 0.8, 0.85, 1, 1.05, 1.1, 1.2, 1.5, 1.7, 1.8, 2.5, 2.8, 2.9, 3, 3.3, 5 Noise (µVrms) 30 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 61.8, 184.3 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Wettable flanks package Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 115 Operating temperature range (°C) -40 to 150
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 VSON (DRB) 8 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 1.65 V to 6.0 V
  • Available output voltages:
    • Adjustable option: 1.2 V to 5.5 V
    • Fixed options: 0.65 V to 5.0 V
  • Output accuracy: 0.5% typical, 1.7% maximum
  • 50-dB PSRR out to 100 kHz
  • Low IQ: 25 µA (typical)
  • Ultra-low dropout:
    • 115 mV (max) at 300 mA (3.3 VOUT)
  • Internal 500-µs soft-start time to reduce inrush current
  • Active output discharge
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Packages:
    • 3-mm × 3-mm wettable flank VSON (8)
    • 5-pin SOT-23
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 1.65 V to 6.0 V
  • Available output voltages:
    • Adjustable option: 1.2 V to 5.5 V
    • Fixed options: 0.65 V to 5.0 V
  • Output accuracy: 0.5% typical, 1.7% maximum
  • 50-dB PSRR out to 100 kHz
  • Low IQ: 25 µA (typical)
  • Ultra-low dropout:
    • 115 mV (max) at 300 mA (3.3 VOUT)
  • Internal 500-µs soft-start time to reduce inrush current
  • Active output discharge
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Packages:
    • 3-mm × 3-mm wettable flank VSON (8)
    • 5-pin SOT-23

The TPS784-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 300 mA with excellent line and load transient performance.

The low output noise and great PSRR performance make the device suitable to power sensitive analog loads. The TPS784-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.65 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V. The device also features fixed output voltages from 0.65 V to 5.0 V for powering common voltage rails.

The TPS784-Q1 offers foldback current limit to reduce power dissipation during over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled start up, reducing the inrush current and allowing for lower input capacitance to be used.

The TPS784-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.

The TPS784-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 300 mA with excellent line and load transient performance.

The low output noise and great PSRR performance make the device suitable to power sensitive analog loads. The TPS784-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.65 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V. The device also features fixed output voltages from 0.65 V to 5.0 V for powering common voltage rails.

The TPS784-Q1 offers foldback current limit to reduce power dissipation during over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled start up, reducing the inrush current and allowing for lower input capacitance to be used.

The TPS784-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.
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Technical documentation

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Type Title Date
* Data sheet TPS784-Q1 Automotive, 300-mA, High-PSRR Low-Dropout Voltage Regulator With High Accuracy and Enable datasheet (Rev. C) PDF | HTML 10 Jan 2022
Functional safety information TPS784-Q1 Functional Safety FIT Rate, FMD and Pin FMEA PDF | HTML 21 Sep 2022

Design & development

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Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian
VSON (DRB) 8 Ultra Librarian
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