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TPS40041

ACTIVO

Controlador reductor síncrono de entrada de 2.25 a 5.5 V, 600 kHz, con recuento de pines bajo

Detalles del producto

Rating Catalog Iout (max) (A) 6 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 4.95 Vout (min) (V) 0.6 Control mode Voltage mode Features Prebias startup Duty cycle (max) (%) 95 Iq (typ) (A) 0.002 Number of phases 1 Operating temperature range (°C) -40 to 85
Rating Catalog Iout (max) (A) 6 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 4.95 Vout (min) (V) 0.6 Control mode Voltage mode Features Prebias startup Duty cycle (max) (%) 95 Iq (typ) (A) 0.002 Number of phases 1 Operating temperature range (°C) -40 to 85
VSON (DRB) 8 9 mm² 3 x 3
  • 2.25-V to 5.5-V Input
  • Output Voltage from 0.6 V to 90% of VIN
  • High-Side Drive for N-Channel FET
  • Supports Pre-Biased Outputs
  • Adaptive Anti-Cross Conduction Gate Drive
  • 1%, 0.6-V Reference
  • Two Fixed Switching Frequency Versions, TPS40040 (300 kHz) and TPS40041 (600 kHz)
  • Three Selectable Short Circuit Protection Levels of 105 mV, 180 mV and 310 mV
  • Hiccup Restart from Faults
  • Voltage Mode Control
  • Active Low Enable
  • Thermal Shutdown Protection at 145°C
  • 8-Pin, 3-mm × 3-mm SON with Ground Connection to Thermal Pad
  • APPLICATIONS
    • Point of Load
    • Telecommunications
    • DC to DC Modules
    • Set Top Boxes

PowerPAD Is a trademark of Texas Instruments.
Predictive Gate Drive Is a trademark of Texas Instruments.

  • 2.25-V to 5.5-V Input
  • Output Voltage from 0.6 V to 90% of VIN
  • High-Side Drive for N-Channel FET
  • Supports Pre-Biased Outputs
  • Adaptive Anti-Cross Conduction Gate Drive
  • 1%, 0.6-V Reference
  • Two Fixed Switching Frequency Versions, TPS40040 (300 kHz) and TPS40041 (600 kHz)
  • Three Selectable Short Circuit Protection Levels of 105 mV, 180 mV and 310 mV
  • Hiccup Restart from Faults
  • Voltage Mode Control
  • Active Low Enable
  • Thermal Shutdown Protection at 145°C
  • 8-Pin, 3-mm × 3-mm SON with Ground Connection to Thermal Pad
  • APPLICATIONS
    • Point of Load
    • Telecommunications
    • DC to DC Modules
    • Set Top Boxes

PowerPAD Is a trademark of Texas Instruments.
Predictive Gate Drive Is a trademark of Texas Instruments.

The TPS40040 and TPS40041 dc-to-dc controllers are designed to operate from a 2.25-V to 5.5-V input source. To reduce the number of external components, several operating parameters are fixed internally; namely, frequency, soft start time, and short circuit protection (SCP) levels. For example, the operating frequencies of TPS40040/1 are 300 kHz/600 kHz, respectively.

One of three short circuit threshold levels may be selected by the addition of an external resistor from the COMP pin to circuit ground. During power on, and before the internal soft start commands the output voltage to rise, the TPS40040/1 enters a calibration cycle, measures the current out of the COMP pin, and selects an internal SCP threshold voltage. At the end of the 1.6-ms calibration time, the output voltage is allowed to rise for a 4-ms soft start. During operation, the selected SCP threshold voltage is compared to the upper MOSFET’s voltage drop during its ON time to determine whether there is an overload condition.

The packaging of the TPS40040/1 is unique in that the PowerPAD™ is used as an electrical ground connection as well as a thermal connection.

The TPS40040 and TPS40041 dc-to-dc controllers are designed to operate from a 2.25-V to 5.5-V input source. To reduce the number of external components, several operating parameters are fixed internally; namely, frequency, soft start time, and short circuit protection (SCP) levels. For example, the operating frequencies of TPS40040/1 are 300 kHz/600 kHz, respectively.

One of three short circuit threshold levels may be selected by the addition of an external resistor from the COMP pin to circuit ground. During power on, and before the internal soft start commands the output voltage to rise, the TPS40040/1 enters a calibration cycle, measures the current out of the COMP pin, and selects an internal SCP threshold voltage. At the end of the 1.6-ms calibration time, the output voltage is allowed to rise for a 4-ms soft start. During operation, the selected SCP threshold voltage is compared to the upper MOSFET’s voltage drop during its ON time to determine whether there is an overload condition.

The packaging of the TPS40040/1 is unique in that the PowerPAD™ is used as an electrical ground connection as well as a thermal connection.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet Low Pin Count, Low VIN (2.5V to 5.5V Synchronous Buck DC-to-DC Controller datasheet (Rev. D) 12 dic 2007
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Selection guide DC/DC Buck Controller Solutions Selection Guide 06 feb 2018
Technical article Power Tips: Simple PSRR measurement with a frequency analyzer PDF | HTML 25 may 2016
Application note Power for V5’s Transceiver using DC/DC Controllers using External FETs 04 sep 2007
EVM User's guide A 5-V Input, 1.8-V Output, 6-A Synchronous Buck Converter 10 abr 2006

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

TPS40040EVM-001 — Módulo de evaluación de reductor síncrono de 10 A, de entrada de 5 V, salida de 1.8 V

The TPS40040EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed1.8 V output at up to 10 A from a 5 V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for startup. The module uses the TPS40040 (...)

Guía del usuario: PDF
Placa de evaluación

TPS40041EVM-001 — Módulo de evaluación de 6 A, salida de 1.8 V, entrada de 5 V TPS40041

The TPS40041EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed1.8 V output at up to 6 A from a 5 V input bus or 3 A from a 3.3 V input. The EVM is designed to start up from a single supply, so no additional bias voltage is required for (...)

Guía del usuario: PDF
Modelo de simulación

TPS40040/1 Unencrypted PSpice Average Model Package (Rev. A)

SLVJ008A.ZIP (108 KB) - PSpice Model
Modelo de simulación

TPS40041 PSpice Transient Model

SLVM033.ZIP (61 KB) - PSpice Model
Modelo de simulación

TPS40041 TINA-TI Average Reference Design

SLVM027.TSC (566 KB) - TINA-TI Reference Design
Modelo de simulación

TPS40041 TINA-TI Average Spice Model

SLVM073.TSM (6 KB) - TINA-TI Spice Model
Modelo de simulación

TPS40041 TINA-TI Transient Reference Design

SLVM030.TSC (758 KB) - TINA-TI Reference Design
Modelo de simulación

TPS40041 TINA-TI Transient Spice Model

SLVM031.TSM (27 KB) - TINA-TI Spice Model
Herramienta de cálculo

SLUC263 Type III Compensation Calculation Tool

Productos y hardware compatibles

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VSON (DRB) 8 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

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Soporte y capacitación

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