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)

TPS53511

ACTIVO

Regulador reductor de 1.5 A con MOSFET integrados

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TPS562211 ACTIVO Convertidor reductor síncrono de 4.2 V a 18 V, 2 A, con una precisión del 1 %, PG/SS y PFM/PWM forza Higher efficiency with lower external component count in a smaller package.

TPS53511

ACTIVO
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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.75 Vout (max) (V) 5 Iq (typ) (µA) 1300 Duty cycle (max) (%) 95
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.75 Vout (max) (V) 5 Iq (typ) (µA) 1300 Duty cycle (max) (%) 95
VQFN (RGT) 16 9 mm² 3 x 3
  • Continuous 1.5-A output current
  • 4.5-V to 18-V supply voltage range
  • 2-V to 18-V conversion voltage range
  • DCAP2™ mode control enables fast transient response
  • Low output ripple and support all MLCC output capacitor
  • Skip mode for light load control
  • Highly efficient integrated FETs optimized for lower duty cycle applications
  • High efficiency, less than 10-µA supply current at shutdown
  • Adjustable soft-start time
  • Support pre-biased soft start
  • 700-kHz switching frequency
  • Cycle-by-cycle overcurrent limit
  • Open-drain power-good indication
  • Internal bootstrap switch
  • Small 3-mm × 3-mm, 16-pin QFN (RGT) package
  • Continuous 1.5-A output current
  • 4.5-V to 18-V supply voltage range
  • 2-V to 18-V conversion voltage range
  • DCAP2™ mode control enables fast transient response
  • Low output ripple and support all MLCC output capacitor
  • Skip mode for light load control
  • Highly efficient integrated FETs optimized for lower duty cycle applications
  • High efficiency, less than 10-µA supply current at shutdown
  • Adjustable soft-start time
  • Support pre-biased soft start
  • 700-kHz switching frequency
  • Cycle-by-cycle overcurrent limit
  • Open-drain power-good indication
  • Internal bootstrap switch
  • Small 3-mm × 3-mm, 16-pin QFN (RGT) package

The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.

The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.

The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.

The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.
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TPS54326 ACTIVO Convertidor reductor síncrono de 3A, entrada de 4.5 V a 18 V, con Eco-Mode™ The 3-A TPS54326 in the 4x4mm QFN package is interchangeable with the 1.5-A TPS53511
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NUEVO TPS562203 ACTIVO Convertidor reductor síncrono de 2 A y entrada de 4,2 V a 17 V en encapsulado SOT563 con E This new product has smaller package and simplified design
TPS562242 ACTIVO Convertidor reductor síncrono de 3 V a 17 V de tensión de entrada, 2 A y 1.4 MHz en SOT563 This product has a smaller package with 1.2MHz switching frequency

Documentación técnica

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* Data sheet 4.5-V to 18-V Input, 1.5-A Step-Down Regulator with Integrated Switcher datasheet (Rev. B) PDF | HTML 17 ago 2021
Technical article How to latch off a power converter that has a hiccup fault response PDF | HTML 20 dic 2023
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 25 ene 2017

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.

Modelo de simulación

TPS53511 TINA-TI Transient Reference Design

SLUM394.TSC (197 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS53511 TINA-TI Transient Spice Model

SLUM393.ZIP (44 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS53511 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM380A.ZIP (319 KB) - PSpice Model
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGT) 16 Ultra Librarian
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Pedidos y calidad

Información incluida:
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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

Soporte y capacitación

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