TPS54140
Convertidor reductor con entrada de 3.5 V a 42 V y 1.5 A con Eco-Mode
Se encuentra disponible una versión más nueva de este producto
TPS54140
- 3.5- 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 and Sequencing
- UV and OV Power-Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- MSOP10 Package With PowerPAD
- Supported by WEBENCH® Software Tool
(www.TI.com/WEBENCH)
The TPS54140 device is a 42-V, 1.5-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, the shutdown supply current is reduced to 1.3 µA.
Undervoltage 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 and tracking. An open-drain power-good signal indicates the output is within 94% to 107% of the nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the device during an overload condition.
The TPS54140 device is available in a 10-pin thermally enhanced MSOP PowerPAD package.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | TPS54140 1.5-A, 42-V Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. C) | PDF | HTML | 14 nov 2014 |
Application note | Understanding Eco-mode(TM) Operation | 05 dic 2016 | ||
Application note | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 05 mar 2015 | ||
Application note | Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A | 17 abr 2013 | ||
Application note | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 26 oct 2012 | ||
Application note | Level Shifting Control for an Inverting Buck-boost | 10 oct 2012 | ||
User guide | TPS54140EVM-429 1.5 A, SWIFT Regulator Evaluation Module | 19 mar 2008 |
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.
TPS54140EVM-429 — Módulo de evaluación de 1.5 A, salida de 3.3 V, entrada de 42 V TPS54140
TPS54140 TINA-TI Average Reference Design
TPS54140 TINA-TI Steady State Reference Design
TPS54140 TINA-TI Transient Spice Model
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
Productos
Convertidores de CA/CC y CC/CC (FET integrado)
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 (...)
Productos y hardware compatibles
Productos
Convertidores de CA/CC y CC/CC (FET integrado)
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
HVSSOP (DGQ) | 10 | Ultra Librarian |
Pedidos y calidad
- 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
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
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