TPS785-Q1

ACTIVE

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

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.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TPS784-Q1 ACTIVE Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable Alternative solution at lower current (300 mA)
Same functionality with different pin-out to the compared device
TPS737-Q1 ACTIVE Automotive 1A ultra-low-dropout voltage regulator with reverse current protection and enable Lower dropout for tighter voltage conversions
TPS746-Q1 ACTIVE Automotive 1-A, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good Cost-optimized and tighter solution

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* 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

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

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
Not available on TI.com
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
Package Pins CAD symbols, footprints & 3D models
TO-252 (KVU) 5 Ultra Librarian
VSON (DRB) 8 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos