Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)

TPS5405

ACTIVO

Regulador reductor con entrada de 6.5 V a 28 V, salida fija de 5 V a 2 A, con MOSFET integrado

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TPS5405

ACTIVO
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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 6.8 Vin (max) (V) 28 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1100 Features Fixed Output, Light Load Efficiency, Soft Start Adjustable, Spread Spectrum Control mode current mode Vout (min) (V) 4.85 Vout (max) (V) 5.15 Iq (typ) (µA) 100 Duty cycle (max) (%) 93
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 6.8 Vin (max) (V) 28 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1100 Features Fixed Output, Light Load Efficiency, Soft Start Adjustable, Spread Spectrum Control mode current mode Vout (min) (V) 4.85 Vout (max) (V) 5.15 Iq (typ) (µA) 100 Duty cycle (max) (%) 93
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Fixed 5-V Output
  • 6.5-V to 28-V Wide Input Voltage Range
  • Up to 2-A Maximum Continuous Output Loading Current
  • Pulse Skipping Mode to Achieve High Light Load Efficiency
  • Over 80% Efficiency at 10-mA Loading
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an
    External Resistor (Leave pin ROSC floating. Set frequency to
    120 kHz)
  • Peak Current-Mode Control
  • Cycle-by-Cycle Over Current Protection
  • Switching Node Anti-Ringing to Ease EMI Issue
  • External Soft Start
  • Available in SOIC8 Package
  • Fixed 5-V Output
  • 6.5-V to 28-V Wide Input Voltage Range
  • Up to 2-A Maximum Continuous Output Loading Current
  • Pulse Skipping Mode to Achieve High Light Load Efficiency
  • Over 80% Efficiency at 10-mA Loading
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an
    External Resistor (Leave pin ROSC floating. Set frequency to
    120 kHz)
  • Peak Current-Mode Control
  • Cycle-by-Cycle Over Current Protection
  • Switching Node Anti-Ringing to Ease EMI Issue
  • External Soft Start
  • Available in SOIC8 Package

The TPS5405 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 6.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5405 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.

The TPS5405 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 6.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5405 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.
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Documentación técnica

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Tipo Título Fecha
* Data sheet Monolithic Non-Synchronous Step-Down Regulator With Integrated MOSFET datasheet (Rev. B) 19 abr 2013

Diseño y desarrollo

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Placa de evaluación

TPS5405EVM — Módulo de evaluación TPS5405

The TPS5405 is designed to provide fixed 5-V output and 2-A continuous current with an operational range of 6.5 V to 28 V and an external set switching frequency ranging from 50 kHz to 1.1 MHz.
  • Fixed 5-V Output
  • 6.5-V to 28-V Wide Input Voltage Range
  • Up to 2-A Maximum Continuous Output Loading Current
  • (...)
Guía del usuario: PDF
No disponible en TI.com
Diseños de referencia

TIDA-00940 — Diseño de referencia de fuente de alimentación de polarización no ISO de 3 W con hasta un 80 % de ef

TIDA-00940 is a 3-W, non-isolated bias power supply with up to 80% efficiency and excellent EMI performance, designed for motor control and drive subsystems in major appliances to save system costs, and other main benefits here. This reference design provides two non-isolated outputs with buck (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP4467 — Módulo de diseño de referencia CC/CC con entrada de 6.5 V a 28 V y salida de 5 V y 1.3 A en encapsul

The PMP4467 is a 6.5V to 28Vin, +5Vout, 1.3A reference design module which is implemented in TO220 package, targetting for general LDO replacement. The design includes a non-synchronous step-down regulator TPS5405. The solution has high efficiency, good line, load regulation. The power module was (...)
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian
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Pedidos y calidad

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  • 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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