Inicio Administración de potencia DC/DC switching regulators DC/DC converters

TPS62148

ACTIVO

Convertidor reductor de 3 V a 17 V y 2.0 A con precisión del 1 % y PFM/PWM forzado en QFN de 2 × 3

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
TPS62902 ACTIVO Convertidor buck de 3 V a 17 V, 2 A, con alta eficiencia y baja IQ en encapsulado QFN de 1.5 mm × Improved efficiency, smaller size and lower IQ.

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 12 Vout (min) (V) 0.8 Features Enable, Forced PWM, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Prebias startup, Synchronous rectification, Tracking, UVLO adjustable Control mode DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000018 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 12 Vout (min) (V) 0.8 Features Enable, Forced PWM, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Prebias startup, Synchronous rectification, Tracking, UVLO adjustable Control mode DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000018 Duty cycle (max) (%) 100
VQFN-HR (RGX) 11 6 mm² 3 x 2
  • Output voltage accuracy ± 1% over specified TJ range (PWM mode)
  • Input voltage range: 3 V to 17 V
  • Quiescent current 18-µA typical
  • Output voltage from 0.8 V to 12 V
  • Adjustable soft start
  • Forced PWM or PWM/PFM operation
  • Switching frequency of 1.25 MHz or 2.5 MHz in forced PWM
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Automatic efficiency enhancement AEE
  • DCS-Control topology
  • Active output discharge (TPS62148)
  • HICCUP overcurrent protection (TPS62147)
  • Power-good output
  • Available in 2-mm × 3-mm VQFN package
  • Output voltage accuracy ± 1% over specified TJ range (PWM mode)
  • Input voltage range: 3 V to 17 V
  • Quiescent current 18-µA typical
  • Output voltage from 0.8 V to 12 V
  • Adjustable soft start
  • Forced PWM or PWM/PFM operation
  • Switching frequency of 1.25 MHz or 2.5 MHz in forced PWM
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Automatic efficiency enhancement AEE
  • DCS-Control topology
  • Active output discharge (TPS62148)
  • HICCUP overcurrent protection (TPS62147)
  • Power-good output
  • Available in 2-mm × 3-mm VQFN package

The TPS62147 and TPS62148 are high efficiency and easy-to-use synchronous step-down DC/DC converters, based on the DCS-Control Topology. The wide input voltage range of 3-V to 17-V make the devices suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 2-A continuous output current. The devices automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the devices are well suited for applications that require connected standby performance, like industrial PC and video surveillance. With the MODE pin set to low, the switching frequency is adapted automatically based on the output current and also on input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE) and maintains high conversion efficiency over the whole operation range. TPS62147, TPS62148 provide a 1% output voltage accuracy in PWM mode and therefore enable the design of a power supply with high output voltage accuracy. The FSEL pin allows to set a switching frequency in forced PWM mode of 1.25 MHz or 2.5 MHz, respectively.

The typical quiescent current is 18 µA. In shutdown mode, the current is typically 1 µA.

The devices are available as an adjustable version, packaged in a 3-mm × 2-mm VQFN package.

The TPS62147 and TPS62148 are high efficiency and easy-to-use synchronous step-down DC/DC converters, based on the DCS-Control Topology. The wide input voltage range of 3-V to 17-V make the devices suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 2-A continuous output current. The devices automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the devices are well suited for applications that require connected standby performance, like industrial PC and video surveillance. With the MODE pin set to low, the switching frequency is adapted automatically based on the output current and also on input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE) and maintains high conversion efficiency over the whole operation range. TPS62147, TPS62148 provide a 1% output voltage accuracy in PWM mode and therefore enable the design of a power supply with high output voltage accuracy. The FSEL pin allows to set a switching frequency in forced PWM mode of 1.25 MHz or 2.5 MHz, respectively.

The typical quiescent current is 18 µA. In shutdown mode, the current is typically 1 µA.

The devices are available as an adjustable version, packaged in a 3-mm × 2-mm VQFN package.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Pin por pin con la misma funcionalidad que el dispositivo comparado
TPS62135 ACTIVO Convertidor reductor de 3 V a 17 V y 4.0 A con precisión del 1 % y PFM/PWM forzado en QFN de 2 × 3 This product is a pin-to-pin 2 A and 2.5-MHz switching frequency.
TPS62136 ACTIVO Convertidor reductor de 3 V a 17 V y 4.0 A con precisión del 1 % y PFM/PWM forzado en QFN de 2 × 3 This product is a pin-to-pin 2-A product and 1-MHz switching frequency.
TPS62147 ACTIVO Convertidor reductor de 3 V a 17 V y 2.0 A con precisión del 1 % y PFM/PWM forzado en QFN de 2 × 3 This is the same product with hiccup current limit.

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 7
Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet TPS62147, TPS62148 High-Accuracy, 3-V to 17-V, 2-A Step-Down Converter with DCS-Control datasheet (Rev. B) PDF | HTML 02 feb 2023
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26 jul 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 jun 2019
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

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

TPS62148EVM-034 — Módulo de evaluación de convertidores reductores de entrada de 17 V y salida de 2 A con funcionalida

El TPS62148EVM-034 está diseñado para ayudar al usuario a evaluar y probar fácilmente el funcionamiento y la funcionalidad del convertidor CC/CC TPS62148. El EVM convierte una tensión de entrada de 3 a 17 V en una tensión de salida regulada de 3.3 V con una corriente de salida de hasta 2 A. El (...)

Guía del usuario: PDF | HTML
Modelo de simulación

TPS62148 PSpice Unencrypted Transient Model (Rev. B)

SLVMCK3B.ZIP (111 KB) - PSpice Model
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

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RGX) 11 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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

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 alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos