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TPS54040

ACTIVO

Convertidor reductor de 0.5 A con entrada de 3.5 V a 42 V y Eco-Mode

Se encuentra disponible una versión más nueva de este producto

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LMR54406 ACTIVO Convertidor de potencia bucksincrónico SIMPLE SWITCHER® de 4 V a 36 V, 0.6 A e IQ de 80 µA Smaller footprint, lower quiescent current, FPWM and PFM options.

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 39 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light-load efficiency, Power good, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000116 Duty cycle (max) (%) 98
Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 39 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light-load efficiency, Power good, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000116 Duty cycle (max) (%) 98
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads with a Pulse
    Skipping Eco-Mode™
  • 116-µA Operating Quiescent Current
  • 1.3-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 Package With PowerPAD™
  • Supported by SwitcherPro Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads with a Pulse
    Skipping Eco-Mode™
  • 116-µA Operating Quiescent Current
  • 1.3-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 Package With PowerPAD™
  • Supported by SwitcherPro Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)

The TPS54040 device is a 42-V, 0.5-A, step down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated output supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA, when the enable pin is low.

Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS54040 is available in 10-pin thermally enhanced HVSSOP PowerPAD package.

The TPS54040 device is a 42-V, 0.5-A, step down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated output supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA, when the enable pin is low.

Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS54040 is available in 10-pin thermally enhanced HVSSOP PowerPAD package.

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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 TPS54040 0.5-A, 42-V Step Down DC/DC Converter with Eco-Mode™ datasheet (Rev. B) PDF | HTML 15/01/2016
Nota sobre la aplicación Understanding Eco-mode(TM) Operation 5/12/2016
Nota sobre la aplicación Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications 5/03/2015
Nota sobre la aplicación Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A 17/04/2013
Nota sobre la aplicación Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 26/10/2012
Nota sobre la aplicación Level Shifting Control for an Inverting Buck-boost 10/10/2012
Informe Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) 28/03/2012

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

TPS54040EVM-456 — Módulo de evaluación de 0.5 A, salida de 5 V, entrada de 42 V TPS54040

The TPS54040EVM-456 evaluation module is designed to demonstrate the small printed-circuit-board areas that can be achieved when designing with the TPS54040 regulator. The TPS54040 dc/dc converter is designed to provide up to a 0.5-A output from an input voltage source of 3.5 V to 42 V. Rated (...)
Guía del usuario: PDF
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Modelo de simulación

TPS54040 PSpice Average Model

SLVM913.ZIP (85 KB) - Modelo PSpice
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TPS54040 PSpice Transient Model

SLIM069.ZIP (66 KB) - Modelo PSpice
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Modelo de simulación

TPS54040 TINA-TI Transient Reference Design

SLIM278.TSC (482 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS54040 TINA-TI Transient Spice Model

SLIM277.ZIP (68 KB) - Modelo TINA-TI Spice
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Modelo de simulación

TPS54040 Unencrypted PSpice Average Model

SLVMCU4.ZIP (1 KB) - Modelo PSpice
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Modelo de simulación

TPS54040 Unencrypted PSpice Transient Model

SLVMD06.ZIP (7 KB) - Modelo PSpice
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Herramienta de cálculo

SLVC432 — TPS54x40 and TPS54x60 Buck Design Spreadsheet

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Herramienta de cálculo

SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator

The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)

Productos y hardware compatibles
Herramienta de cálculo

SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download

The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.

This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
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Pedidos y calidad

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