Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)

TPS62840

ACTIVO

Convertidor reductor de 750 mA, alta eficiencia, tensión de entrada de 1.8 V a 6.5 V y corriente qui

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.75 Vin (min) (V) 1.8 Vin (max) (V) 6.5 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 1800 Features Enable, Fixed Output, Forced PWM, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode DCS-Control Vout (min) (V) 0.8, 1.8, 3.4 Vout (max) (V) 1.55, 3.3, 3.4, 3.6 Iq (typ) (µA) 0.06 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.75 Vin (min) (V) 1.8 Vin (max) (V) 6.5 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 1800 Features Enable, Fixed Output, Forced PWM, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode DCS-Control Vout (min) (V) 0.8, 1.8, 3.4 Vout (max) (V) 1.55, 3.3, 3.4, 3.6 Iq (typ) (µA) 0.06 Duty cycle (max) (%) 100
DSBGA (YBG) 6 1.4136 mm² 0.95 x 1.488 HVSSOP (DGR) 8 9 mm² 3 x 3 VSON-HR (DLC) 8 3 mm² 2 x 1.5
  • 60-nA operating quiescent current
  • 100% duty-cycle mode with 120-nA IQ
  • Input voltage range VIN from 1.8 V to 6.5 V
  • Output current up to 750 mA
  • RF friendly DCS-Control™
  • 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
  • 16 selectable output voltages via VSET pin
  • Auto transition PFM/PWM or forced-PWM mode
  • Selectable forced PWM and STOP modes
  • Output discharge function
  • 25-nA shutdown current
  • SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages
  • 60-nA operating quiescent current
  • 100% duty-cycle mode with 120-nA IQ
  • Input voltage range VIN from 1.8 V to 6.5 V
  • Output current up to 750 mA
  • RF friendly DCS-Control™
  • 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
  • 16 selectable output voltages via VSET pin
  • Auto transition PFM/PWM or forced-PWM mode
  • Selectable forced PWM and STOP modes
  • Output discharge function
  • 25-nA shutdown current
  • SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages

The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.

The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.

16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.

The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.

The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2.

The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.

The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.

16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.

The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.

The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS62843 ACTIVO Convertidor reductor de 600 mA con IQ ultrabaja y entrada de 1.8 V a 5.5 V Low IQ 275-nA DC/DC converter with compact solution size of 5.7 mm2

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 30
Tipo Título Fecha
* Data sheet TPS62840 1.8-V to 6.5-V, 750-mA, 60-nA IQ Step-Down Converter datasheet (Rev. D) PDF | HTML 27 abr 2020
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 dic 2023
White paper Overcoming Low-IQ Challenges in Low-Power Applications (Rev. B) PDF | HTML 12 abr 2023
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 may 2022
Technical article 3 quiescent-current (Iq) specifications you need to understand PDF | HTML 12 nov 2021
Application note High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision (Rev. A) 30 jul 2021
EVM User's guide TPS62841-2EVM123 EVM User's Guide (Rev. A) PDF | HTML 03 jun 2021
Application note Extend Battery Life with <100 nA IQ Buck Converter Achieving <150 µV Voltage Rip (Rev. A) PDF | HTML 07 may 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Technical article Advantages of the STOP function for low-noise data-acquisition applications PDF | HTML 31 mar 2020
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 14 oct 2019
EVM User's guide TPS62842EVM-103 User's Guide 28 ago 2019
Technical article Deciphering low Iq: Using WEBENCH® to design near 100% duty-cycle for ultra-low po PDF | HTML 15 jul 2019
Technical article Do all rails need low Iq? PDF | HTML 15 jul 2019
EVM User's guide TPS62840-1YBGEVM56 User's Guide 24 may 2019
EVM User's guide TPS62840-1DLCEVM55 User's Guide 15 may 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 dic 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 oct 2017
Technical article Never lose your luggage again with a smart tracker design PDF | HTML 20 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
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 09 ago 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

TPS62840-1DLCEVM55 — Módulo de evaluación de convertidores reductores de 750 mA, alta eficiencia e IQ de 60 nA en encapsu

The TPS62840-1DLCEVM55 evaluation module (EVM) facilitates the evaluation of the TPS6284XDLC family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 2.0-mm QFN packages. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from higher input voltages (...)

Guía del usuario: PDF
Placa de evaluación

TPS62840-1YBGEVM56 — Módulo de evaluación de convertidores reductores de 750 mA, alta eficiencia e IQ de 60 nA en encapsu

The TPS62840-1YBGEVM056 evaluation module (EVM) facilitates the evaluation of the TPS6284XYBG family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 1-mm WCSP packages with 0.4-mm pitch. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from (...)

Guía del usuario: PDF
Placa de evaluación

TPS62841-2EVM123 — Módulos de evaluación TPS62841 y TPS62842 de convertidores reductores de 750 mA e IQ de 60 nA en enc

The TPS62841-2EVM123 evaluation module (EVM) facilitates the evaluation of the TPS6284XDGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains two separate circuits to create output voltages between 0.8 V and 3.6 V from higher input voltages (...)

Guía del usuario: PDF | HTML
Placa de evaluación

TPS62842EVM-103 — Módulo de evaluación de convertidor reductor de 750 mA, alta eficiencia e IQ de 60 nA en encapsulado

The TPS62842EVM-103 evaluation module (EVM) facilitates the evaluation of the TPS62842DGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains a circuit to convert output voltages between 1.8 V and 3.6 V from higher input voltages between 1.8 V and (...)

Guía del usuario: PDF
Modelo de simulación

TPS62840 PSpice Unencrypted Transient Model (Rev. C)

SLUM691C.ZIP (83 KB) - PSpice Model
Modelo de simulación

TPS62841 PSPICE Model

SLVMD75.ZIP (98 KB) - PSpice Model
Modelo de simulación

TPS62842 PSpice Transient Model

SLVMD74.ZIP (92 KB) - PSpice Model
Archivo Gerber

BSR055 Gerbers

SLVC773.ZIP (452 KB)
Archivo Gerber

BSR056 Gerbers

SLVC774.ZIP (445 KB)
Diseños de referencia

TIDA-010224 — Diseño de referencia de cámara inalámbrica de baja potencia para una mayor duración de la batería

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
Diseños de referencia

TIDA-010072 — Diseño de referencia de ventilador de aire y control de válvula para aplicaciones respiratorias

This reference design provides a compact system design capable of supporting motor acceleration and deceleration up to ±200 kRPM/s, which is a key requirement in many respirator applications. The design supports a number of offboard C2000 controllers including (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-010053 — Diseño de referencia de opción de baja potencia para módulo inalámbrico de medidor inteligente que u

This reference design showcases three different power architectures for smart flow meters with lithium manganese dioxide (LiMnO2) primary batteries and commercial off-the-shelf narrowband modules for Internet of Things (IoT)-related applications. The three power solutions are combined with the (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YBG) 6 Ultra Librarian
HVSSOP (DGR) 8 Ultra Librarian
VSON-HR (DLC) 8 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

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos