Inicio Gestión de la energía AC/DC & DC/DC converters (integrated FET)
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Gestión de la energía
AC/DC & DC/DC converters (integrated FET)

TPS54335A

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Convertidor reductor síncrono de 3 A, entrada de 4.5 V a 28 V, con Eco-Mode

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TPS54335A

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Detalles del producto

Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1500 Features Enable, Light Load Efficiency, Soft Start Fixed, Synchronous Rectification Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 24 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.0006
Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1500 Features Enable, Light Load Efficiency, Soft Start Fixed, Synchronous Rectification Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 24 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.0006
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 VSON (DRC) 10 9 mm² 3 x 3
  • Synchronous 128-mΩ and 84-mΩ MOSFETs for
    3-A Continuous Output Current
  • TPS54335A: Internal 2-ms Soft-Start,
    50-kHz to 1.5-MHz Adjustable Frequency
  • TPS54336A: Adjustable Soft-Start,
     Fixed 340-kHz Frequency
  • Low 2-µA Shutdown, Quiescent Current
  • 0.8-V Voltage Reference with ±0.8%
    Accuracy
  • Current Mode Control
  • Monotonic Startup into Pre-Biased Outputs
  • Pulse Skipping for Light-Load Efficiency
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown (TSD) and
    Overvoltage Transition Protection
  • 8-Pin SO PowerPAD and 10-Pin VSON Packages
  • Synchronous 128-mΩ and 84-mΩ MOSFETs for
    3-A Continuous Output Current
  • TPS54335A: Internal 2-ms Soft-Start,
    50-kHz to 1.5-MHz Adjustable Frequency
  • TPS54336A: Adjustable Soft-Start,
     Fixed 340-kHz Frequency
  • Low 2-µA Shutdown, Quiescent Current
  • 0.8-V Voltage Reference with ±0.8%
    Accuracy
  • Current Mode Control
  • Monotonic Startup into Pre-Biased Outputs
  • Pulse Skipping for Light-Load Efficiency
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown (TSD) and
    Overvoltage Transition Protection
  • 8-Pin SO PowerPAD and 10-Pin VSON Packages

The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.

Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.

Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.

The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.

Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.

Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.
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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS5433xA 4.5-V to 28-V Input, 3-A Output, Synchronous Step-Down DC-DC Converter datasheet (Rev. D) PDF | HTML 10 feb 2016
Application brief Simplify Voltage and Current Measurement in Battery Test Equipment (Rev. A) PDF | HTML 10 mar 2022
User guide TPS54335A Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 07 oct 2021
Application note How to Estimate Overshoot and Undershoot of Load Transients of a DC/DC Regulator 20 dic 2017
Application note Using TPS54335A to Create an Inverting Power Supply (Rev. A) 19 jul 2017
Application note Using TPS54335A to Create an Inverting Power Supply 13 jul 2017

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

TPS54335AEVM-010 — Módulo de evaluación de convertidor reductor síncrono TPS54335A

The TPS54335AEVM-010 is a fully assembled and tested circuit for evaluating the TPS54335A synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 2 A. The TPS54335A enables small designs by integrating the (...)

Guía del usuario: PDF | HTML
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Modelo de simulación

TPS54335A TINA-TI Average Reference Design

SLVMAY2.TSC (377 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS54335A TINA-TI Average Spice Model

SLVMAY1.ZIP (7 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS54335A Unencrypted PSpice Average Model Package (Rev. A)

SLVM891A.ZIP (30 KB) - PSpice Model
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Modelo de simulación

TPS54335A Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAM3A.ZIP (106 KB) - PSpice Model
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Diseños de referencia

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This reference design is for USB Type-C® and power delivery applications. It allows you to develop various power profiles and alternate modes such as DisplayPort and debug existing USB Type-C and power delivery systems.
Esquema: PDF
Diseños de referencia

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The 0.23 qHD DLP chipset is an affordable platform enabling the use of DLP technology with embedded host processor. This chipset is incorporated in to this reference design to enable a low power, on-demand free-form sub-system display for a variety of applications.
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-01226 — Diseño de referencia de pantalla de proyección Full HD 1080 p compacta (hasta 16 amperios) con tecno

This reference design, featuring the DLP Pico™ 0.47-inch TRP Full-HD 1080p display chipset and implemented in the DLP LightCrafter Display 4710 G2 evaluation module (EVM), enables use of full HD resolution for projection display applications such as accessory projectors, screenless displays, (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

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This display reference design features the DLP Pico™ 0.3-inch TRP HD 720p display chipset and is implemented in the DLP LightCrafter™ Display 3010-G2 evaluation module (EVM). It enables the use of HD resolution for projection display applications such as mobile smart TV, virtual (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP20566 — Diseño de referencia de Buck Boost inversor de 12 Vin, -5 V de salida utilizando un convertidor redu

The TPS54335 provides a single IC for both control and the power stage for DC/DC applications up to 3A. PMP20566 utilizes the TPS54335 in an inverting buck boost topology to implement a regulated -5V, rail. TPS54335 enables the designer to implement power solutions which require negative voltages (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP11225 — Diseño de referencia de convertidor buck sincrónico de voltaje de entrada de 8 V-20 V (5 V a 2 A)

The PMP11225 reference design implements two small-footprint integrated FET synchronous buck converters. Optimized for small size, each converter operates at 1.3MHz and occupies an area of only 7mm x 10mm. 
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP8930 — Diseño de referencia de retorno regulado por el lado primario con entrada CA de 85 V a 265 V y almac

The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. (...)
Test report: PDF
Diseños de referencia

PMP9668 — Diseño de referencia de cargador de batería con control uP universal con entrada de 24 V, salida de

BQ24745 is a host controlled synchronous buck battery charger capable of charging batteries at up to 19.2V and up to 8 A normally, extended to 10 A with use of 8 mOhm battery sense resistor. The power train is capable of 8 A with convection only cooling and 10 A with moderate fan cooling (~200 (...)
Test report: PDF
Esquema: PDF
Paquete Pasadores Descargar
HSOIC (DDA) 8 Ver opciones
VSON (DRC) 10 Ver opciones
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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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