TPS793-Q1

ACTIVE

Automotive 200-mA, low-dropout voltage regulator with enable

Product details

Rating Automotive Vin (max) (V) 5.5 Vin (min) (V) 2.7 Iout (max) (A) 0.2 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 1.22 Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3, 5.5 Noise (µVrms) 32 PSRR at 100 KHz (dB) 43 Iq (typ) (mA) 0.17 Thermal resistance θJA (°C/W) 178.2 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 112 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 5.5 Vin (min) (V) 2.7 Iout (max) (A) 0.2 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 1.22 Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3, 5.5 Noise (µVrms) 32 PSRR at 100 KHz (dB) 43 Iq (typ) (mA) 0.17 Thermal resistance θJA (°C/W) 178.2 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 112 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Available in fixed and adjustable options
  • High PSRR: 43dB at 100kHz (legacy chip)
  • High PSRR: 39dB at 100kHz (new chip)
  • Fast start-up time: 50µs (legacy chip)
  • Internal 500µs soft-start time to reduce inrush current (new chip)
  • Stable with a 2.2µF ceramic capacitor
  • Very low dropout 112mV (typ) at full load
  • Packages:
    • 6-pin SOT-23
    • 5-pin SOT-23
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Available in fixed and adjustable options
  • High PSRR: 43dB at 100kHz (legacy chip)
  • High PSRR: 39dB at 100kHz (new chip)
  • Fast start-up time: 50µs (legacy chip)
  • Internal 500µs soft-start time to reduce inrush current (new chip)
  • Stable with a 2.2µF ceramic capacitor
  • Very low dropout 112mV (typ) at full load
  • Packages:
    • 6-pin SOT-23
    • 5-pin SOT-23

The TPS793-Q1 is a low-dropout (LDO), low-power, linear voltage regulator. This device features high power-supply rejection ratio (PSRR), ultra-low noise, fast start-up, and excellent line and load transient response. The TPS793-Q1 is available in small-outline SOT-23 packages that sources 200mA.

The TPS793-Q1 is designed for post-regulation applications, offering fixed and adjustable options supporting common voltage rails like 3.3V. The low noise and PSRR performance makes the device designed for power-sensitive analog loads.

The TPS793-Q1 offers foldback current limit to reduce power dissipation during overcurrent condition. The EN input helps with power-sequencing requirements of the system. The internal soft-start provides a controlled start-up, reducing inrush current and allowing lower input capacitance to be used.

The TPS793-Q1 is a low-dropout (LDO), low-power, linear voltage regulator. This device features high power-supply rejection ratio (PSRR), ultra-low noise, fast start-up, and excellent line and load transient response. The TPS793-Q1 is available in small-outline SOT-23 packages that sources 200mA.

The TPS793-Q1 is designed for post-regulation applications, offering fixed and adjustable options supporting common voltage rails like 3.3V. The low noise and PSRR performance makes the device designed for power-sensitive analog loads.

The TPS793-Q1 offers foldback current limit to reduce power dissipation during overcurrent condition. The EN input helps with power-sequencing requirements of the system. The internal soft-start provides a controlled start-up, reducing inrush current and allowing lower input capacitance to be used.

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
TLV733P-Q1 ACTIVE Automotive 300-mA, low-IQ, low-dropout voltage regulator with enable Supports higher load current with 80% less IQ.
Same functionality with different pin-out to the compared device
TPS784-Q1 ACTIVE Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable Improved accuracy and Iq

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet TPS793-Q1 Automotive, Ultra-Low Noise, High-PSRR, Fast RF, 200mA, Low-Dropout Linear Regulator datasheet (Rev. J) PDF | HTML 11 Jun 2025
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017

Design & development

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

Evaluation board

TPS79301EVM — TPS79301 Evaluation Module

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

TPS79301 PSpice Transient Model

SLVMA75.ZIP (35 KB) - PSpice Model
Simulation model

TPS79318 PSpice Transient Model

SGLM013.ZIP (21 KB) - PSpice Model
Simulation model

TPS79325 PSpice Transient Model

SGLM014.ZIP (21 KB) - PSpice Model
Simulation model

TPS79328 PSpice Transient Model

SGLM015.ZIP (21 KB) - PSpice Model
Simulation model

TPS79333 PSpice Transient Model

SGLM017.ZIP (21 KB) - PSpice Model
Reference designs

TIDA-00223 — Automotive Audio I2S over Coax Class D Amplifier Reference Design

This reference design is an I²S/TDM-based, low-cost, easy-to-use alternative to fiber optics/analog copper wire for connecting an automotive (sound) control panel to an output stage/power amplifier. Supporting I²S as well as TDM, it is capable of transmitting digital audio signal to 16 (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian
SOT-23 (DBV) 6 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