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TPS40303

ACTIVO

Controlador reductor síncrono de 3 V a 20 V, 25 A, 300 kHz, con FSS

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 25 Vin (max) (V) 20 Vin (min) (V) 3 Vout (max) (V) 18 Vout (min) (V) 0.6 Control mode Voltage mode Features Enable, Power good, Prebias startup, Spread Spectrum, Synchronous rectification EMI features Spread Spectrum Duty cycle (max) (%) 90 Iq (typ) (A) 0.0025 Number of phases 1 Operating temperature range (°C) -40 to 125
Rating Catalog Topology Buck Iout (max) (A) 25 Vin (max) (V) 20 Vin (min) (V) 3 Vout (max) (V) 18 Vout (min) (V) 0.6 Control mode Voltage mode Features Enable, Power good, Prebias startup, Spread Spectrum, Synchronous rectification EMI features Spread Spectrum Duty cycle (max) (%) 90 Iq (typ) (A) 0.0025 Number of phases 1 Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • Input Voltage Range From 3 V to 20 V
  • 300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
  • High- and Low-Side FET RDS(on) Current Sensing
  • Programmable Thermally Compensated OCP Levels
  • Programmable Soft Start
  • 600-mV, 1% Reference Voltage
  • Voltage Feed-Forward Compensation
  • Supports Prebiased Output
  • Frequency Spread Spectrum
  • Thermal Shutdown Protection at 145°C
  • 10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad
  • Create a Custom Design Using the TPS4030x With the WEBENCH® Power Designer
  • Input Voltage Range From 3 V to 20 V
  • 300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
  • High- and Low-Side FET RDS(on) Current Sensing
  • Programmable Thermally Compensated OCP Levels
  • Programmable Soft Start
  • 600-mV, 1% Reference Voltage
  • Voltage Feed-Forward Compensation
  • Supports Prebiased Output
  • Frequency Spread Spectrum
  • Thermal Shutdown Protection at 145°C
  • 10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad
  • Create a Custom Design Using the TPS4030x With the WEBENCH® Power Designer

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

The frequency spread-spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS4030x offers design with a variety of user-programmable functions, including soft start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

The frequency spread-spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS4030x offers design with a variety of user-programmable functions, including soft start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet TPS4030x 3-V to 20-V Input, Voltage Mode, Synchronous Buck Controller datasheet (Rev. D) PDF | HTML 12 mar 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Analog Design Journal Common mistakes made in controller designs for power converters 26 mar 2018
Selection guide DC/DC Buck Controller Solutions Selection Guide 06 feb 2018
Technical article Power Tips: Power sharing in USB Type-C applications PDF | HTML 08 jun 2016
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 22 feb 2016

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

TPS40303 TINA-TI Start-up Reference Design

SLIM234.TSC (277 KB) - TINA-TI Reference Design
Modelo de simulación

TPS40303 TINA-TI Steady State Reference Design

SLIM235.TSC (267 KB) - TINA-TI Reference Design
Modelo de simulación

TPS40303 TINA-TI Transient Spice Model

SLIM233.ZIP (74 KB) - TINA-TI Spice Model
Modelo de simulación

TPS40303 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM115A.ZIP (92 KB) - PSpice Model
Herramienta de cálculo

SLUC263 Type III Compensation Calculation Tool

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Esquema: PDF
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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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