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

TPS54319

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Convertidor reductor síncrono SWIFT™ de 2 MHz, 3 A, con entrada de 2.95 V a 6 V en encapsulado QFN d

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TPS54319

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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.95 Vin (max) (V) 6 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iq (typ) (µA) 360 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.95 Vin (max) (V) 6 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iq (typ) (µA) 360 Duty cycle (max) (%) 98
WQFN (RTE) 16 9 mm² 3 x 3
  • Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
  • 300kHz to 2MHz Switching Frequency
  • 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • Pin Compatible to TPS54318
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
      LCD Displays, CPE Equipment

SWIFT, SwitcherPro are trademarks of Texas Instruments.
  • Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
  • 300kHz to 2MHz Switching Frequency
  • 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • Pin Compatible to TPS54318
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
      LCD Displays, CPE Equipment

SWIFT, SwitcherPro are trademarks of Texas Instruments.

The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced QFN package.

The TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 45m MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced QFN package.

The TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 45m MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
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Documentación técnica

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Tipo Título Fecha
* Data sheet 2.95 V to 6 V Input, 3-A Output, 2MHz, Synchronous Step Down Switcher With Integ datasheet 28 ene 2010
White paper Understanding the trade-offs and technologies to increase power density (Rev. C) PDF | HTML 14 abr 2023
Technical article Smaller size now possible in 3A point-of-load converters PDF | HTML 03 jun 2015
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15 sep 2010
EVM User's guide TPS54319EVM-626 3-A, SWIFT Regulator Evaluation Module 19 may 2010

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

TPS54319EVM-626 — Módulo de evaluación para convertidor CC/CC reductor TPS54319

The TPS54319EVM-626 is a fully assembled and tested circuit for evaluating the TPS54319 2.95V to 6V input 3A synchronous buck converter. There are terminal blocks for input and output. Additional test points are also provided.
Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

TPS54319 TINA-TI Average Reference Design

SLVM489.TSC (261 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS54319 TINA-TI Average Spice Model

SLVM488.ZIP (7 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS54319 TINA-TI Transient Reference Design

SLVM467.TSC (218 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS54319 TINA-TI Transient Spice Model

SLVM466.ZIP (55 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS54319 Unencrypted PSpice Average Model Package (Rev. A)

SLVM373A.ZIP (136 KB) - PSpice Model
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Modelo de simulación

TPS54319 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM292B.ZIP (41 KB) - PSpice Model
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Herramienta de cálculo

TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator

The Design Calculator Plus Application Note (SLVA352A) Calculator Tool calculates the critical external component values for the TPS54620/TPS54622/TPS54521/TPS54320/TPS54618/TPS54418/TPS54318/TPS54218/TPS54319. The calculator includes power stage design, feature design and Type II and Type III (...)
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS54218 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 2A TPS54318 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 3A TPS54319 — Convertidor reductor síncrono SWIFT™ de 2 MHz, 3 A, con entrada de 2.95 V a 6 V en encapsulado QFN d TPS54320 — Convertidor SWIFT™ reductor síncrono con entrada de 4.5 V a 17 V y 3 A TPS54418 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 4 A TPS54521 — Convertidor reductor síncrono con entrada de 17 V y 5 A TPS54618 — Convertidor SWIFT™ reductor síncrono con entrada de 2.95 V a 6 V y 6 A TPS54620 — Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 6 A TPS54622 — Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 6 A con límite de corriente Hiccup TPS54821 — Convertidor reductor síncrono de 4.5 V a 17 V y 8 A con límite de corriente Hiccup TPS56921 — Convertidor reductor síncrono de 4.5 V a 17 V y 9 A, con control VID
Desarrollo de hardware
Placa de evaluación
TPS54418EVM-375 — Módulo de evaluación de convertidor SWIFT™ de 4 A, entrada de 3.3 V y salida de 1.8 V TPS54418 TPS54620EVM-374 — Módulo de evaluación de convertidor SWIFT™ de 6 A y 8 V a 17 V TPS54620
Software
Herramienta de cálculo
TPS54620DESIGN-CALC — Calculadora de diseño de convertidor reductor de modo actual TPS54620 y TPS54XXX
Descargar
Diseños de referencia

TIDA-01378 — Diseño de referencia de receptor de banda ancha para aplicaciones DOCSIS 3.1 del cliente al servidor

This reference design consists of an analog front-end (AFE) signal chain for wideband receiver applications using the LMH2832 digitally controlled variable gain amplifier (DVGA) and ADS54J40 analog-to-digital converter (ADC). The design is primarily targeted for upstream DOCSIS 3.1 receiver (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RTE) 16 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

Soporte y capacitación

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