TPS54678

Name: TPS54678
Brand: TI
SKU: TPS54678
Price: 1.36 USD

ACTIVO

Convertidor reductor SWIFT™ síncrono de 6 A, con entrada de 2.95 V a 6 V con límite de corriente Hic

Haga su pedido ahora

Hoja de datos

document-pdfAcrobat TPS54678 2.95-V to 6-V Input, 6-A Synchronous Step-Down SWIFT™ Converter With Hiccup Current Limit datasheet (Rev. B) (Inglés) PDF | HTML

Se encuentra disponible una versión más nueva de este producto

open-in-new

Comparar alternativas

Funcionalidad similar a la del dispositivo comparado

TPS62867

ACTIVO

Convertidor reductor síncrono de entrada de 2.4 V a 5.5 V y 6 A en encapsulado QFN de 1.5 mm × 2.5 m Newer generation of 6-A devices with <30mm² total BOM size.

TPS62869

ACTIVO

Convertidor reductor síncrono de 5.5 V y 6 A con interfaz I²C en encapsulado QFN de 1.5 mm × 2.5 mm Newer generation of 6-A devices

TPS54678

ACTIVO

Hoja de datos

Haga su pedido ahora

Detalles del producto

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

2.95

Vin (max) (V)

6

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2000

Features

Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable

Control mode

current mode

Vout (min) (V)

0.6

Vout (max) (V)

4.5

Iq (typ) (µA)

570

Duty cycle (max) (%)

98

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

2.95

Vin (max) (V)

6

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2000

Features

Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable

Control mode

current mode

Vout (min) (V)

0.6

Vout (max) (V)

4.5

Iq (typ) (µA)

570

Duty cycle (max) (%)

98

WQFN (RTE)

16

9 mm² 3 x 3

Two 12-mΩ (typical) MOSFETs for high-efficiency 6-A continuous output current
200-kHz to 2-MHz Switching frequency
0.6-V ±1% Voltage reference over temperature (–40°C to 150°C)
Synchronizes to external clock
Start-Up with prebiased voltage
Power good output
Adjustable slow start and sequencing
Cycle-by-cycle current limit and hiccup current protection
Adjustable input voltage UVLO
Thermally enhanced 16-pin 3-mm × 3-mm WQFN (RTE)
Create a custom design using the TPS54678 with the WEBENCH^® Power Designer

Two 12-mΩ (typical) MOSFETs for high-efficiency 6-A continuous output current
200-kHz to 2-MHz Switching frequency
0.6-V ±1% Voltage reference over temperature (–40°C to 150°C)
Synchronizes to external clock
Start-Up with prebiased voltage
Power good output
Adjustable slow start and sequencing
Cycle-by-cycle current limit and hiccup current protection
Adjustable input voltage UVLO
Thermally enhanced 16-pin 3-mm × 3-mm WQFN (RTE)
Create a custom design using the TPS54678 with the WEBENCH^® Power Designer

TPS54678 device is a full-featured 6-V, 6-A, synchronous step-down current mode converter with two integrated MOSFETs.

TPS54678 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 3-mm × 3-mm thermally enhanced WQFN package.

TPS54678 provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (V_REF) over temperature.

Efficiency is maximized through the integrated 12-mΩ MOSFETs. Using the enable (EN) pin, shutdown supply current is reduced by disabling the device.

The output voltage start-up ramp is controlled by the soft-start (SS) pin that can also be configured for sequencing or tracking. Monotonic start-up is achieved with prebiased voltage. Undervoltage lockout can be increased by programming the threshold with a resistor divider on the enable pin. An open-drain power good signal indicates the output is within 93% to 105% of its nominal voltage.

Cycle-by-cycle current limit, hiccup overcurrent protection and thermal shutdown protect the device during an overcurrent condition.

TPS54678 device is a full-featured 6-V, 6-A, synchronous step-down current mode converter with two integrated MOSFETs.

TPS54678 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 3-mm × 3-mm thermally enhanced WQFN package.

TPS54678 provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (V_REF) over temperature.

Efficiency is maximized through the integrated 12-mΩ MOSFETs. Using the enable (EN) pin, shutdown supply current is reduced by disabling the device.

The output voltage start-up ramp is controlled by the soft-start (SS) pin that can also be configured for sequencing or tracking. Monotonic start-up is achieved with prebiased voltage. Undervoltage lockout can be increased by programming the threshold with a resistor divider on the enable pin. An open-drain power good signal indicates the output is within 93% to 105% of its nominal voltage.

Cycle-by-cycle current limit, hiccup overcurrent protection and thermal shutdown protect the device during an overcurrent condition.

filter

Buscar otro/a Convertidores de CA/CC y CC/CC (FET integrado)

Descargar Ver vídeo con transcripción Video

Documentación técnica

star

=Principal documentación para este producto seleccionada por TI

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.

Ver todo 10

	Tipo	Título		Fecha
*	Data sheet	TPS54678 2.95-V to 6-V Input, 6-A Synchronous Step-Down SWIFT™ Converter With Hiccup Current Limit datasheet (Rev. B)	PDF \| HTML	06 may 2019
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	25 mar 2024
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		08 abr 2021
	Application note	Calculating Efficiency (Rev. A)		06 mar 2020
	Application note	Minimizing Output Ripple During Startup (Rev. A)		20 may 2019
	Selection guide	SWIFT DC/DC Converters Selector Guide (Rev. G)		06 feb 2019
	Selection guide	Power Management Guide 2018 (Rev. R)		25 jun 2018
	Application note	Minimizing Output Ripple During Startup		22 jun 2017
	User guide	TPS54678EVM-155 6-A, SWIFT™ Regulator Evaluation Module		13 jun 2012
	Application note	Understanding Thermal Dissipation and Design of a Heatsink		04 may 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

TPS54678EVM-155 — Módulo de evaluación TPS54678

The Texas Instruments TPS54678EVM-155 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54678 2.95V to 6V Output, 2MHz Synchronous Step-Down Switcher.

Guía del usuario: PDF