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TPS63031

ACTIVO

Convertidor elevador/reductor de alta eficiencia e inductor único con interruptores de 1 A

Detalles del producto

Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 1 Features Enable, Frequency synchronization, Light-load efficiency, Load Disconnect, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 1 Features Enable, Frequency synchronization, Light-load efficiency, Load Disconnect, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 100
WSON (DSK) 10 6.25 mm² (2.5 mm × 2.5 mm)
  • Input voltage range: 1.8 V to 5.5 V
  • Fixed and adjustable output voltage options from 1.2 V to 5.5 V
  • Up to 96% efficiency
  • 800-mA Output current at 3.3 V in step-down mode (VIN = 3.6 V to 5.5 V)
  • Up to 500-mA output current at 3.3 V in boost mode (VIN > 2.4 V)
  • Automatic transition between step-down and boost mode
  • Device quiescent current less than 50 µA
  • Power-save mode for improved efficiency at low-output power
  • Forced fixed frequency operation and synchronization possible
  • Load disconnect during shutdown
  • Overtemperature protection
  • Available in a small 2.5-mm × 2.5-mm 10-pin VSON package (QFN)
  • Input voltage range: 1.8 V to 5.5 V
  • Fixed and adjustable output voltage options from 1.2 V to 5.5 V
  • Up to 96% efficiency
  • 800-mA Output current at 3.3 V in step-down mode (VIN = 3.6 V to 5.5 V)
  • Up to 500-mA output current at 3.3 V in boost mode (VIN > 2.4 V)
  • Automatic transition between step-down and boost mode
  • Device quiescent current less than 50 µA
  • Power-save mode for improved efficiency at low-output power
  • Forced fixed frequency operation and synchronization possible
  • Load disconnect during shutdown
  • Overtemperature protection
  • Available in a small 2.5-mm × 2.5-mm 10-pin VSON package (QFN)

The TPS6303x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 600 mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low-load currents, the converter enters power-save mode to maintain high efficiency over a wide load current range. The power-save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 1000 mA. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery.

The TPS6303x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 10-pin VSON package measuring 2.5-mm × 2.5-mm (DSK).

The TPS6303x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 600 mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low-load currents, the converter enters power-save mode to maintain high efficiency over a wide load current range. The power-save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 1000 mA. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery.

The TPS6303x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 10-pin VSON package measuring 2.5-mm × 2.5-mm (DSK).

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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 TPS6303x High Efficiency Single Inductor Buck-Boost Converter With 1-A Switches datasheet (Rev. D) PDF | HTML 30/03/2020
Nota sobre la aplicación QFN and SON PCB Attachment (Rev. C) PDF | HTML 6/12/2023
Nota sobre la aplicación Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML 9/06/2021
Nota sobre la aplicación Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11/12/2018
Nota sobre la aplicación Understanding Undervoltage Lockout in Power Devices (Rev. A) 19/09/2018
Nota sobre la aplicación Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 9/07/2018
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Informe Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) 28/03/2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17/06/2011
Nota sobre la aplicación Minimizing Ringing at the Switch Node of a Boost Converter 15/09/2006

Diseño y desarrollo

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