Inicio Gestión de la energía Reguladores lineales y de baja salida (LDO)
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Gestión de la energía
Reguladores lineales y de baja salida (LDO)

TPS746-Q1

ACTIVO

Regulador de tensión de caída baja (LDO) de 1 A, baja IQ y PSRR alto para automoción, con buena pote

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TPS746-Q1

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Detalles del producto

Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.5 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 Rating Automotive Noise (µVrms) 53 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 55 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Power good, Wettable flanks package Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 190 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.5 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 Rating Automotive Noise (µVrms) 53 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 55 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Power good, Wettable flanks package 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:
    • 2-mm × 2-mm wettable flank WSON
    • 3-mm × 3-mm wettable flank VSON
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range:
    • Fixed option: 0.65 V to 5.0 V
    • Adjustable option: 0.55 V to 5.5 V
  • High PSRR: 38 dB at 100 kHz
  • Output accuracy: ±0.85% typical, ±1.5% maximum
  • Power-good output options:
    • Open-drain or push-pull
  • Ultra-low dropout:
    • 265 mV (max) at 1 A (3.3 VOUT)
  • Stable with a 1-µF or larger capacitor
  • Low IQ: 25 µA (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:
    • 2-mm × 2-mm wettable flank WSON
    • 3-mm × 3-mm wettable flank VSON
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range:
    • Fixed option: 0.65 V to 5.0 V
    • Adjustable option: 0.55 V to 5.5 V
  • High PSRR: 38 dB at 100 kHz
  • Output accuracy: ±0.85% typical, ±1.5% maximum
  • Power-good output options:
    • Open-drain or push-pull
  • Ultra-low dropout:
    • 265 mV (max) at 1 A (3.3 VOUT)
  • Stable with a 1-µF or larger capacitor
  • Low IQ: 25 µA (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 1-A, ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2-mm × 2-mm WSON package and a small 8-pin, 3-mm × 3-mm 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 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V. 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 1-A, ultra-low-dropout regulator (LDO) with power-good functionality. This device is available in a small 6-pin, 2-mm × 2-mm WSON package and a small 8-pin, 3-mm × 3-mm 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 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V. 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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Documentación técnica

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* Data sheet TPS746-Q1 Automotive, 1-A LDO With Power-Good in Small Wettable Flank WSON Packages datasheet (Rev. C) PDF | HTML 19 may 2022
Application brief Discrete Power Design for C2000™ PDF | HTML 15 ago 2024
Test report Power Delivery Reference Design for AMD Versal™ AI Edge Series PDF | HTML 25 mar 2024
Functional safety information TPS746-Q1 Functional Safety FIT Rate, FMD and Pin FMEA PDF | HTML 10 ago 2022
EVM User's guide TPS746EVM-009 Evaluation Module User's Guide 14 mar 2018

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS746EVM-009 — Módulo de evaluación TPS746 de regulador lineal LDO ajustable de 1 A con buena potencia

The TPS746EVM-009 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS746, which is a 1-A, low-Vin, low-dropout (LDO) voltage regulator with power good.

The EVM circuit board is configured to be a reference design for engineering (...)

Guía del usuario: PDF
No disponible en TI.com
Diseños de referencia

PMP23227 — Diseño de referencia de suministro de energía para AMD Versal™ Edge serie AI

Este diseño de referencia muestra cómo los circuitos integrados reguladores de TI pueden alimentar los carriles de alimentación necesarios para el dispositivo VE2302. Los carriles mínimos de AMD potencian la consolidación de los suministros. Consulte la herramienta Power Design Manager (PDM) de AMD (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSON (DRB) 8 Ultra Librarian
WSON (DRV) 6 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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