Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)

TPS746-Q1

AKTIV

Low-Dropout-Spannungsregler (LDO) für die Automobilindustrie, 1 A, niedriger Ruhestrom, hoher PSRR-W

Produktdetails

Rating Automotive Vin (max) (V) 6 Vin (min) (V) 1.5 Iout (max) (A) 1 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 0.55 Fixed output options (V) 0.7, 1, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.5, 1.7, 1.8, 2.5, 2.8, 2.9, 3, 3.3, 3.4, 5, 5.5 Noise (µVrms) 53 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.025 Features Enable, Foldback Overcurrent protection, Power good, Wettable flanks package Thermal resistance θJA (°C/W) 55 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 190 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 6 Vin (min) (V) 1.5 Iout (max) (A) 1 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.5 Vout (min) (V) 0.55 Fixed output options (V) 0.7, 1, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.5, 1.7, 1.8, 2.5, 2.8, 2.9, 3, 3.3, 3.4, 5, 5.5 Noise (µVrms) 53 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.025 Features Enable, Foldback Overcurrent protection, Power good, Wettable flanks package Thermal resistance θJA (°C/W) 55 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 190 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3 WSON (DRV) 6 4 mm² 2 x 2
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device operating junction temperature range:
    • –40°C to +150°C
  • Package:
    • 2mm × 2mm wettable flank WSON
    • 3mm × 3mm wettable flank VSON
  • Input voltage range: 1.5V to 6.0V
  • Output voltage range:
    • Fixed option: 0.65V to 5.0V
    • Adjustable option: 0.55V to 5.5V
  • High PSRR: 38dB at 100kHz
  • Output accuracy: ±0.85% typical, ±1.5% maximum
  • Power-good output options:
    • Open-drain or push-pull
  • Ultra-low dropout:
    • 265mV (max) at 1A (3.3VOUT)
  • Stable with a 1µF or larger capacitor
  • Low IQ: 25µA (typical)
  • Active output discharge
  • Functional Safety-Capable
  • Low thermal resistance:
    • DRV (6-pin WSON), RθJA = 80.3°C/W
    • DRB (8-pin VSON), RθJA = 55.5°C/W
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Device operating junction temperature range:
    • –40°C to +150°C
  • Package:
    • 2mm × 2mm wettable flank WSON
    • 3mm × 3mm wettable flank VSON
  • Input voltage range: 1.5V to 6.0V
  • Output voltage range:
    • Fixed option: 0.65V to 5.0V
    • Adjustable option: 0.55V to 5.5V
  • High PSRR: 38dB at 100kHz
  • Output accuracy: ±0.85% typical, ±1.5% maximum
  • Power-good output options:
    • Open-drain or push-pull
  • Ultra-low dropout:
    • 265mV (max) at 1A (3.3VOUT)
  • Stable with a 1µF or larger capacitor
  • Low IQ: 25µA (typical)
  • Active output discharge
  • Functional Safety-Capable
  • Low thermal resistance:
    • DRV (6-pin WSON), RθJA = 80.3°C/W
    • DRB (8-pin VSON), RθJA = 55.5°C/W

The TPS746-Q1 is a 1A, ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2mm × 2mm WSON package and a small 8-pin, 3mm × 3mm VSON package with wettable flanks to facilitate optical inspection. The TPS746-Q1 consumes low quiescent current and provides fast line and load transient performance.

The TPS746-Q1 is a flexible device for post-regulation by supporting an input voltage range from 1.5V to 6.0V and an externally adjustable output range of 0.55V to 5.5V. The device also features fixed output voltages for powering common voltage rails.

The TPS746-Q1 has a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power supplies in the system.

The TPS746-Q1 is stable with small ceramic output capacitors, allowing for a small overall solution size. A precision band-gap and error amplifier provides high accuracy of ±0.85% (max) at 25°C and ±1.5% (max) over temperature. This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS746-Q1 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events.

The TPS746-Q1 is a 1A, ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2mm × 2mm WSON package and a small 8-pin, 3mm × 3mm VSON package with wettable flanks to facilitate optical inspection. The TPS746-Q1 consumes low quiescent current and provides fast line and load transient performance.

The TPS746-Q1 is a flexible device for post-regulation by supporting an input voltage range from 1.5V to 6.0V and an externally adjustable output range of 0.55V to 5.5V. The device also features fixed output voltages for powering common voltage rails.

The TPS746-Q1 has a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power supplies in the system.

The TPS746-Q1 is stable with small ceramic output capacitors, allowing for a small overall solution size. A precision band-gap and error amplifier provides high accuracy of ±0.85% (max) at 25°C and ±1.5% (max) over temperature. This device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. The TPS746-Q1 has an internal foldback current limit that helps reduce the thermal dissipation during short-circuit events.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS746-Q1 Automotive, 1A LDO With Power-Good in Small Wettable Flank Packages datasheet (Rev. D) PDF | HTML 14 Apr 2025
Application brief Discrete Power Design for C2000™ PDF | HTML 15 Aug 2024
Test report Power Delivery Reference Design for AMD Versal™ AI Edge Series PDF | HTML 25 Mär 2024
Functional safety information TPS746-Q1 Functional Safety FIT Rate, FMD and Pin FMEA PDF | HTML 10 Aug 2022

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

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Test report: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VSON (DRB) 8 Ultra Librarian
WSON (DRV) 6 Ultra Librarian

Bestellen & Qualität

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  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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