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TPS54350

ACTIVO

Convertidor reductor síncrono de 3 A, entrada de 4.5 V a 20 V, con controlador de compuerta de lado

Se encuentra disponible una versión más nueva de este producto

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS543320 ACTIVO Convertidor reductor síncrono SWIFT™ de 3 A con entrada de 4 V a 18 V This product offers higher efficiency, better accuracy and smaller size.
Funcionalidad similar a la del dispositivo comparado
LM27402 ACTIVO Controlador reductor síncrono de modo de tensión de 3 V a 20 V con detección de corriente DCR Wider Vin support and more switching frequency options

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.005 Duty cycle (max) (%) 80
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.005 Duty cycle (max) (%) 80
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • 100 m, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
  • Uses External Lowside MOSFET or Diode
  • Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
  • Synchronizes to External Clock
  • 180° Out of Phase Synchronization
  • Wide PWM Frequency – Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
  • Internal Slow Start
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Adjustable Undervoltage Lockout
  • 16-Pin TSSOP PowerPAD™ Package
  • APPLICATIONS
    • Industrial & Commercial Low Power Systems
    • LCD Monitors and TVs
    • Computer Peripherals
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.

  • 100 m, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
  • Uses External Lowside MOSFET or Diode
  • Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
  • Synchronizes to External Clock
  • 180° Out of Phase Synchronization
  • Wide PWM Frequency – Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
  • Internal Slow Start
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Adjustable Undervoltage Lockout
  • 16-Pin TSSOP PowerPAD™ Package
  • APPLICATIONS
    • Industrial & Commercial Low Power Systems
    • LCD Monitors and TVs
    • Computer Peripherals
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.

The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54350 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54350 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 4.5V to 20V Input, 3-A Output Synchronous PWM Switcher w/Integrated FET (SWIFT) datasheet (Rev. C) 28/10/2004
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Nota sobre la aplicación Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 27/02/2024
Nota sobre la aplicación Seminar 900 Topic 2 - Snubber Circuits: Theory, Design and Application 15/02/2001

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

TPS54350EVM-235 — Convertidor CC/CC de 3 A, entrada de 4.5 a 20 V con tensión de salida ajustable

The TPS54350EVM-235 evaluation module allows the designer to evaluate the TPS54350 SWIFT DC/DC converter optimized for small size and low height. The inductor and capacitors selected allow a wide 6-18V input and a 3.3V output up to 3A. The output voltage can be easily adjusted for lower DSP and (...)

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Modelo de simulación

TPS54350 TINA-TI Transient Reference Design

SLVM745.TSC (400 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS54350 TINA-TI Transient Spice Model

SLVM746.ZIP (56 KB) - Modelo TINA-TI Spice
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Modelo de simulación

TPS54350 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM337A.ZIP (43 KB) - Modelo PSpice
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
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Pedidos y calidad

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