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TPS785-Q1

ACTIVE

Automotive, 1-A high-accuracy adjustable low-dropout (LDO) linear regulator

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Data sheet

TPS785-Q1

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.7 Vout (max) (V) 5.5 Vout (min) (V) 0.75 Fixed output options (V) 0.75, 1, 1.1, 1.2, 1.8, 2.5, 3.3, 5 Noise (µVrms) 30 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 31.6, 50.3 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Wettable flanks package Accuracy (%) 0.5 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 315 Operating temperature range (°C) -40 to 150
Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.7 Vout (max) (V) 5.5 Vout (min) (V) 0.75 Fixed output options (V) 0.75, 1, 1.1, 1.2, 1.8, 2.5, 3.3, 5 Noise (µVrms) 30 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 31.6, 50.3 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Wettable flanks package Accuracy (%) 0.5 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 315 Operating temperature range (°C) -40 to 150
TO-252 (KVU) 5 66.726 mm² 6.6 x 10.11 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: 1.7 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
  • Low IQ: 25 µA (typical)
  • Ultra-low dropout:
    • 315 mV (max) at 1 A (3.3 VOUT)
  • Internal 550 µs soft-start time to reduce inrush current
  • Active output discharge
  • Packages:
    • 3-mm × 3-mm wettable flank VSON (8)
    • 5-pin TO-252, RθJA = 31.6°C/W
  • 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: 1.7 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
  • Low IQ: 25 µA (typical)
  • Ultra-low dropout:
    • 315 mV (max) at 1 A (3.3 VOUT)
  • Internal 550 µs soft-start time to reduce inrush current
  • Active output discharge
  • Packages:
    • 3-mm × 3-mm wettable flank VSON (8)
    • 5-pin TO-252, RθJA = 31.6°C/W

The TPS785-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 1 A 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 TPS785-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.7 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 TPS785-Q1 offers foldback current limit to reduce power dissipation during a 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 allowing for lower input capacitance to be used.

The TPS785-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.

The TPS785-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 1 A 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 TPS785-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.7 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 TPS785-Q1 offers foldback current limit to reduce power dissipation during a 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 allowing for lower input capacitance to be used.

The TPS785-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.
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Technical documentation

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* Data sheet TPS785-Q1 Automotive, 1-A, High-PSRR Low-Dropout Voltage Regulator With High Accuracy and Enable datasheet (Rev. B) PDF | HTML 13 Jan 2022
EVM User's guide TPS785EVM-033 Evaluation Module User's Guide PDF | HTML 17 Feb 2021

Design & development

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Evaluation board

MULTIPKGLDOEVM-823 — Universal LDO linear voltage regulator evaluation module for DBV, DRB, DRV and DQN packages

The MULTIPKGLDOEVM-823 evaluation module (EVM) helps you evaluate the operation and performance of several common packages of linear regulators for possible use in circuit applications. This particular EVM configuration has a DRB, DRV, DQN and DBV footprint for you to solder and (...)

User guide: PDF
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Evaluation board

TPS785EVM-033 — TPS785 evaluation module for high-accuracy adjustable LDO linear regulator in DRB and KVU packages

The TPS785 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS785-Q1, which is a 1-A, low-IQ, low-dropout (LDO) regulator.

TPS785EVM-033 is configured to be a reference design for engineering applications requiring current to a dynamic (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS785-Q1 PSpice Transient Model

SBVM973.ZIP (85 KB) - PSpice Model
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TO-252 (KVU) 5 Ultra Librarian
VSON (DRB) 8 Ultra Librarian
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