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

TPS74801

ACTIVO

Regulador de tensión ajustable de caída baja (LDO) de 1.5 A y bajo VIN (0.8 V) con buena potencia y

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TPS748A ACTIVO Regulador de tensión ajustable de caída baja (LDO) de 1.5 A y 0.8 V con buena potencia y activación Improved accuracy and noise

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) 3.6 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 20 PSRR at 100 KHz (dB) 28 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 36 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 60 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) 3.6 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 20 PSRR at 100 KHz (dB) 28 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 36 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
VQFN (RGW) 20 25 mm² 5 x 5 VSON (DRC) 10 9 mm² 3 x 3
  • VOUT range: 0.8V to 3.6V
  • Ultra-low VIN range: 0.8V to 5.5V
  • VBIAS range 2.7V to 5.5V
  • Low dropout: 60 mV typical at 1.5A, VBIAS = 5V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 1% accuracy over line, load, and temperature (new chip)
  • 2% accuracy over line, load, and temperature (legacy chip)
  • Programmable soft-start provides linear voltage start-up
  • VBIAS permits low VIN operation with good transient response
  • Stable with any output capacitor ≥ 2.2µF
  • Available in small, 3mm × 3mm × 1mm VSON-10 and 5mm × 5mm VQFN-20 packages
  • VOUT range: 0.8V to 3.6V
  • Ultra-low VIN range: 0.8V to 5.5V
  • VBIAS range 2.7V to 5.5V
  • Low dropout: 60 mV typical at 1.5A, VBIAS = 5V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 1% accuracy over line, load, and temperature (new chip)
  • 2% accuracy over line, load, and temperature (legacy chip)
  • Programmable soft-start provides linear voltage start-up
  • VBIAS permits low VIN operation with good transient response
  • Stable with any output capacitor ≥ 2.2µF
  • Available in small, 3mm × 3mm × 1mm VSON-10 and 5mm × 5mm VQFN-20 packages

The TPS748 low-dropout (LDO) linear regulator provides 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 designed 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 allows a solution to be configured 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 (new chip) over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2µF, and is fully specified for TJ = –40°C to +125°C. The TPS748 is offered in a small, 3mm × 3mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5mm × 5mm VQFN-20 package for compatibility with the TPS742.

The TPS748 low-dropout (LDO) linear regulator provides 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 designed 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 allows a solution to be configured 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 (new chip) over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2µF, and is fully specified for TJ = –40°C to +125°C. The TPS748 is offered in a small, 3mm × 3mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5mm × 5mm VQFN-20 package for compatibility with the TPS742.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS748 1.5A, Low-Dropout Linear Regulator With Programmable Soft-Start datasheet (Rev. N) PDF | HTML 21 jun 2024
EVM User's guide TPS74701EVM-177, TPS74801EVM-177 Evaluation Module (Rev. B) PDF | HTML 08 may 2023
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 ago 2020
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 08 ene 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 jun 2019
Application note Extracting a Lumped Output Impedance Model With SIMPLIS or SiMetrix 11 jun 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 mar 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 ago 2017
Application note Power Solution using LDO's (Rev. A) 25 mar 2010
Application note Simple Power Solution Using LDOs for the DM365 (Rev. A) 11 sep 2009
Application note Simple Power Solution Using LDOs for the DM365 04 ago 2009
Application note Simple Power Solution Using LDOs For TMS320C2834x MCU 24 jul 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

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

LP-AM263 — Kit de desarrollo LaunchPad™ AM263x MCU de uso general basado en Arm®

LP-AM263 is a cost-optimized development board for Sitara™ high-performance microcontrollers (MCUs) from the AM263x series. This board is ideal for initial evaluation and prototyping as it provides a standardized and easy-to-use platform to develop your next application.

LP-AM263 is equipped with a (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Placa de evaluación

LP-AM263P — Kit de desarrollo LaunchPad™ AM263Px MCU de uso general basado en Arm®

El LP-AM263P es una placa de desarrollo de costo optimizado para microcontroladores (MCU) de alto rendimiento de la serie AM263Px de Sitara™. Esta placa es ideal para la evaluación inicial y la creación de prototipos, ya que proporciona una plataforma estandarizada y fácil de usar para desarrollar (...)

Guía del usuario: PDF | HTML
Placa de evaluación

TPS74801EVM-177 — Módulo de evaluación TPS74801 de regulador lineal LDO

The TPS74801EVM-177 evaluation module (EVM) is a platform for evaluating the TPS74801 low-dropout (LDO) linear regulator.

TPS74801 requires a low-power bias voltage (VBIAS) and a power input voltage (VIN). The regulator can provide output voltages down to 0.8 V and has an integrated supervisory (...)

Guía del usuario: PDF | HTML
Placa de evaluación

TUSB4020BPHPEVM — Módulo de evaluación TUSB4020BPHPEVM

The Texas Instruments TUSB4020B evaluation module is a functional board design of a single device that implements a USB 2.0 hub. The EVM can support USB 2.0 (HS, FS, and LS) operation on its USB ports. This EVM is intended for use in evaluating system compatibility, developing optional EEPROM (...)

Guía del usuario: PDF
Placa de evaluación

TUSB4041PAPEVM — Módulo de evaluación TUSB4041PAPEVM

The TUSB4041PAPEVM operates as a functional interconnect between an upstream connection to a USB host or hub and up to four directly connected downstream devices or hubs. More devices and hubs can be supported if arranged in tiers. The TUSB4041PAPEVM is capable of supporting operation at High-Speed (...)

Guía del usuario: PDF
Placa de evaluación

TUSB8044AEVM — Hub USB 3.2 Gen1 × 1 de cuatro puertos con módulo de evaluación de cartelera USB

The TUSB8044A evaluation module (EVM) is a functional board design of a single device that implements both a USB 3.2 Gen 1 x 1 hub and a USB 2.0 hub with Billboard. The EVM can support both SuperSpeed (SS) and USB 2.0 (HS, FS, and LS) operation on its USB ports. This EVM is intended for use in (...)
Guía del usuario: PDF
Modelo de simulación

TPS74801 PSpice Transient Model (Rev. B)

SLIM032B.ZIP (58 KB) - PSpice Model
Modelo de simulación

TPS74801 TINA-TI Transient Reference Design

SLIM255.TSC (94 KB) - TINA-TI Reference Design
Modelo de simulación

TPS74801 TINA-TI Transient Spice Model

SLIM254.ZIP (34 KB) - TINA-TI Spice Model
Modelo de simulación

TPS74801 Unencrypted PSpice Transient Model

SBVM633.ZIP (3 KB) - PSpice Model
Esquema

12Vin Power Design (Rev. A)

SLVR334A.PDF (253 KB)
Diseños de referencia

TIDEP0076 — Diseño de referencia de visión artificial 3D basado en el procesador AM572x con luz estructurada DLP

The TIDEP0076 3D machine vision design describes an embedded 3D scanner based on the structured light principle. A digital camera along with a Sitara™ AM57xx processor System on Chip (SoC)  is used to capture reflected light patterns from a DLP4500-based projector. Subsquent processing (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00887 — Diseño de referencia de hub de USB de doble puerto de 2.4 A de calidad automotriz con protección con

The TIDA-00887 is comprised of a two-port USB 2.0 hub with short-to-battery (STB) and short-circuit protection on both downstream ports provided by the TPD3S716-Q1. Both downstream ports are configured either as a custom divider mode or a dedicated charging port (DCP) provided by the TUSB4020BI-Q1 (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDEP0046 — Diseño de referencia de simulación Monte-Carlo en AM57x con OpenCL para aceleración DSP

TI’s high performance ARM® Cortex®-A15 based AM57x processors also integrate C66x DSPs. These DSPs were designed to handle high signal and data processing tasks that are often required by industrial, automotive and financial applications. The AM57x OpenCL implementation makes it easy (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDEP0047 — Diseño de referencia de las consideraciones sobre el diseño térmico y de energía con el procesador A

This is a reference design based on the AM57x processor and companion TPS659037 power management integrated circuit (PMIC).  This design specifically highlights important power and thermal design considerations and techniques for systems designed with AM57x and TPS659037.  It includes (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00845 — Diseño de referencia de hub USB 2.0 de calidad automotriz de dos puertos con protección contra corto

TIDA-00845 is a dual-port USB 2.0 hub with the ability to withstand a short of up to 18-V DC on both downstream ports, as well as Level 4 IEC 61000-4-2 ESD protection, overcurrent conditions, and shorts to ground. This protection is provided by an integrated protection device - the (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGW) 20 Ultra Librarian
VSON (DRC) 10 Ultra Librarian

Pedidos y calidad

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  • 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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