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DC/DC converters

TPS62825

ACTIVO

Convertidor reductor de 2 A con entrada de 2.4 V a 5.5 V y precisión del 1 % en QFN de 1.5 mm × 1.5 

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TPS62825

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 1.8, 3.3, 4 Vout (min) (V) 0.6, 1.8, 3.3 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 1.8, 3.3, 4 Vout (min) (V) 0.6, 1.8, 3.3 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100
VSON-HR (DMQ) 6 2.25 mm² 1.5 x 1.5
  • Available as an integrated-inductor power module: TPSM82821, TPSM82822, and TPSM82823
  • DCS-Control topology
  • 1% feedback or output voltage accuracy (full temperature range)
  • Up to 97% efficiency
  • 26mΩ and 25mΩ internal power MOSFETs
  • 2.4V to 5.5V input voltage range
  • 4µA operating quiescent current
  • 2.2MHz switching frequency
  • 0.6V to 4V adjustable output voltage
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup short-circuit protection
  • A forced-PWM version for CCM operation
  • Create a custom design using the TPS6282x with the WEBENCH Power Designer
  • Available as an integrated-inductor power module: TPSM82821, TPSM82822, and TPSM82823
  • DCS-Control topology
  • 1% feedback or output voltage accuracy (full temperature range)
  • Up to 97% efficiency
  • 26mΩ and 25mΩ internal power MOSFETs
  • 2.4V to 5.5V input voltage range
  • 4µA operating quiescent current
  • 2.2MHz switching frequency
  • 0.6V to 4V adjustable output voltage
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup short-circuit protection
  • A forced-PWM version for CCM operation
  • Create a custom design using the TPS6282x with the WEBENCH Power Designer

The TPS6282x is an easy-to-use, synchronous step-down DC/DC converters family with a very low quiescent current of only 4µA. Based on the DCS-Control topology, the device provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family devices are pin-to-pin and BOM-to-BOM compatible. The entire design requires a small 470nH inductor, a single 4.7µF input capacitor, and two 10µF or single 22µF output capacitor.

The TPS6282x is available in two flavors. The first includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The second runs in forced-PWM maintaining a continuous conduction mode to make sure of the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and an internal soft-start circuit. The device is able to operate in 100% mode. For fault protection, the device incorporates a HICCUP short-circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5mm × 1.5mm QFN package, offering the highest power density design.

The TPS6282x is an easy-to-use, synchronous step-down DC/DC converters family with a very low quiescent current of only 4µA. Based on the DCS-Control topology, the device provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family devices are pin-to-pin and BOM-to-BOM compatible. The entire design requires a small 470nH inductor, a single 4.7µF input capacitor, and two 10µF or single 22µF output capacitor.

The TPS6282x is available in two flavors. The first includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The second runs in forced-PWM maintaining a continuous conduction mode to make sure of the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and an internal soft-start circuit. The device is able to operate in 100% mode. For fault protection, the device incorporates a HICCUP short-circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5mm × 1.5mm QFN package, offering the highest power density design.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet TPS6282x 2.4V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy datasheet (Rev. I) PDF | HTML 11 mar 2024
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 dic 2023
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 mar 2021
Application brief Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors PDF | HTML 08 jun 2020
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 jun 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 dic 2018
Technical article QFN soldering tips and tricks PDF | HTML 26 nov 2018
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24 ago 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 jun 2018
Technical article Output accuracy varies with temperature – 1% is not always 1% PDF | HTML 02 may 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 oct 2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 oct 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 ago 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 ene 2015
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 22 ene 2014
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 jul 2013
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 abr 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 ene 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 jun 2011

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

TPS62825EVM-794 — Módulo de evaluación de convertidor reductor 2 A de 1.5 mm x 1.5 mm en encapsulado QFN con precisión

El módulo de evaluación (EVM) TPS62825EVM-794 está diseñado para ayudar al usuario a evaluar y probar fácilmente el funcionamiento y la funcionalidad del convertidor buck DCS-Control TPS62825. El EVM convierte una tensión de entrada de 2.4 V a 5.5 V en una tensión de salida regulada con una (...)

Guía del usuario: PDF
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Modelo de simulación

TPS62825 PSpice Unencrypted Transient Model (Rev. A)

SLVMCL1A.ZIP (748 KB) - PSpice Model
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Modelo de simulación

TPS62825 SIMPLIS Transient Model

SLVMDA0.ZIP (264 KB) - SIMPLIS Model
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Modelo de simulación

TPS6282518 PSpice Transient Model

SLVMCL2.ZIP (723 KB) - PSpice Model
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Herramienta de cálculo

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Productos y hardware compatibles

Productos y hardware compatibles
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Archivo Gerber

PWR794 Gerber

SLVC714.ZIP (344 KB)
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Diseños de referencia

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Este diseño de referencia proporciona una solución para una cámara inalámbrica que funciona con batería mediante la combinación de procesamiento de imágenes, conectividad, sensor y alimentación líderes en el sector. Los convertidores de potencia de alta eficiencia junto con la arquitectura (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSON-HR (DMQ) 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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