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

TPS74201

ACTIVO

Regulador de tensión de caída ultrabaja ajustable de 1.5 A, VIN baja (0.8 V), ruido bajo y PSRR alta

Detalles del producto

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.5 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 13 PSRR at 100 KHz (dB) 52 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 55 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.5 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 13 PSRR at 100 KHz (dB) 52 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 55 Operating temperature range (°C) -40 to 125
TO-263 (KTW) 7 153.924 mm² 10.1 x 15.24 VQFN (RGR) 20 12.25 mm² 3.5 x 3.5 VQFN (RGW) 20 25 mm² 5 x 5
  • Input voltage range: 0.8V to 5.5V
  • Soft-Start (SS) pin provides a linear start-up with ramp time set by external capacitor
  • 1% accuracy over line, load, and temperature
  • Supports input voltages as low as 0.8V with external bias supply
  • Adjustable output (0.8V to 3.6V)
  • Ultra-Low Dropout:
    • 60mV (legacy chip) at 1.5A (typical)
    • 55mV (new chip) at 1.5A (typical)
  • Stable with any output capacitor ≥ 2.2µF (new chip)
  • Stable with any or no output capacitor (legacy chip)
  • Excellent transient response
  • Open-Drain Power-Good
  • Active high enable
  • Input voltage range: 0.8V to 5.5V
  • Soft-Start (SS) pin provides a linear start-up with ramp time set by external capacitor
  • 1% accuracy over line, load, and temperature
  • Supports input voltages as low as 0.8V with external bias supply
  • Adjustable output (0.8V to 3.6V)
  • Ultra-Low Dropout:
    • 60mV (legacy chip) at 1.5A (typical)
    • 55mV (new chip) at 1.5A (typical)
  • Stable with any output capacitor ≥ 2.2µF (new chip)
  • Stable with any or no output capacitor (legacy chip)
  • Excellent transient response
  • Open-Drain Power-Good
  • Active high enable

The TPS742 series of low-dropout (LDO) linear regulators provide an easy-to-use, robust power-management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. The device is is stable with any type of capacitor greater than or equal to 2.2µF (new chip only), and is fully specified from –40°C to 125°C.

The TPS742 series of low-dropout (LDO) linear regulators provide an easy-to-use, robust power-management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. The device is is stable with any type of capacitor greater than or equal to 2.2µF (new chip only), and is fully specified from –40°C to 125°C.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS742 1.5A Ultra-LDO With Programmable Soft-Start datasheet (Rev. O) PDF | HTML 18 oct 2024
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 ago 2020
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 ago 2019
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 jun 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 ago 2017
Application note LDO Performance Near Dropout 08 oct 2010
Application note Using New Thermal Metrics 15 dic 2009
Analog Design Journal Q3 2007 Issue Analog Applications Journal 10 ago 2007
Analog Design Journal Simultaneous power-down sequencing with the TPS74x01 family of linear regulators 10 ago 2007
Analog Design Journal A 3-A, 1.2-Vout linear regulator with 80% efficiency and Plost < 1W 10 oct 2006
EVM User's guide TPS74x01EVM-118 User's Guide 20 jun 2006

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.

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Guía del usuario: PDF
Placa de evaluación

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Placa de evaluación

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Guía del usuario: PDF
Placa de evaluación

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Placa de evaluación

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Placa de evaluación

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Placa de evaluación

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Placa de evaluación

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Placa de evaluación

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Modelo de simulación

TPS74201 PSpice Transient Model (Rev. B)

SLIM016B.ZIP (61 KB) - PSpice Model
Modelo de simulación

TPS74201 TINA-TI Transient Reference Design

SLIM289.TSC (106 KB) - TINA-TI Reference Design
Modelo de simulación

TPS74201 TINA-TI Transient Spice Model

SLIM288.ZIP (36 KB) - TINA-TI Spice Model
Modelo de simulación

TPS74201 Unencrypted PSpice Transient Model

SBVM620.ZIP (3 KB) - PSpice Model
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Diseños de referencia

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Diseños de referencia

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Diseños de referencia

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Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TO-263 (KTW) 7 Ultra Librarian
VQFN (RGR) 20 Ultra Librarian
VQFN (RGW) 20 Ultra Librarian

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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