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Convertidores de CC/CC

TPS61241

ACTIVO

Convertidor elevador CC-CC de 5 V, 500 mA y 4 MHz

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TPS61241

ACTIVO
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Detalles del producto

Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 5 Vout (min) (V) 5 Switch current limit (typ) (A) 0.7 Features Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00003 Duty cycle (max) (%) 100
Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 5 Vout (min) (V) 5 Switch current limit (typ) (A) 0.7 Features Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00003 Duty cycle (max) (%) 100
DSBGA (YFF) 6 1.4000000000000001 mm² (— mm × — mm)
  • Efficiency > 90% at Nominal Operating Conditions
  • Total DC Output Voltage Accuracy 5.0 V±2%
  • Typical 30-µA Quiescent Current
  • Best in Class Line and Load Transient
  • Wide VIN Range From 2.3 V to 5.5 V
  • Output Current up to 450 mA
  • Automatic PFM/PWM Mode Transition
  • Low Ripple Power Save Mode for Improved
    Efficiency at Light Loads
  • Internal Softstart, 250-μs Typical Start-Up Time
  • 3.5-MHz Typical Operating Frequency
  • Load Disconnect During Shutdown
  • Current Overload and Thermal Shutdown
    Protection
  • Three Surface-Mount External Components
    Required (One MLCC Inductor, Two Ceramic
    Capacitors)
  • Total Solution Size <13 mm2
  • Available in a 6-Pin DSBGA and 2-mm × 2-mm
    WSON Package
  • Efficiency > 90% at Nominal Operating Conditions
  • Total DC Output Voltage Accuracy 5.0 V±2%
  • Typical 30-µA Quiescent Current
  • Best in Class Line and Load Transient
  • Wide VIN Range From 2.3 V to 5.5 V
  • Output Current up to 450 mA
  • Automatic PFM/PWM Mode Transition
  • Low Ripple Power Save Mode for Improved
    Efficiency at Light Loads
  • Internal Softstart, 250-μs Typical Start-Up Time
  • 3.5-MHz Typical Operating Frequency
  • Load Disconnect During Shutdown
  • Current Overload and Thermal Shutdown
    Protection
  • Three Surface-Mount External Components
    Required (One MLCC Inductor, Two Ceramic
    Capacitors)
  • Total Solution Size <13 mm2
  • Available in a 6-Pin DSBGA and 2-mm × 2-mm
    WSON Package

The TPS6124x device is a highly efficient synchronous step-up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has an input valley current limit of 500 mA, and the TPS61241 has an input valley current of 600 mA.

With an input voltage range of 2.3 V to 5.5 V, the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.

The TPS6124x presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the TPS6124x is shut down.

During light loads the device will automatically pulse skip allowing maximum efficiency at lowest quiescent currents. In the shutdown mode, the current consumption is reduced to less than 1 µA.

TPS6124x allows the use of small inductors and capacitors to achieve a small solution size. During shutdown, the load is completely disconnected from the battery. The TPS6124x is available in a 6-pin DSBGA and 2-mm × 2-mm WSON package.

The TPS6124x device is a highly efficient synchronous step-up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has an input valley current limit of 500 mA, and the TPS61241 has an input valley current of 600 mA.

With an input voltage range of 2.3 V to 5.5 V, the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.

The TPS6124x presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the TPS6124x is shut down.

During light loads the device will automatically pulse skip allowing maximum efficiency at lowest quiescent currents. In the shutdown mode, the current consumption is reduced to less than 1 µA.

TPS6124x allows the use of small inductors and capacitors to achieve a small solution size. During shutdown, the load is completely disconnected from the battery. The TPS6124x is available in a 6-pin DSBGA and 2-mm × 2-mm WSON package.
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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 TPS6124x 3.5-MHz High Efficiency Step-Up Converter datasheet (Rev. D) PDF | HTML 15/12/2015
Nota sobre la aplicación Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28/10/2022
Nota sobre la aplicación Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11/12/2018
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML 3/05/2016
Nota sobre la aplicación Design of UVLO for LM27313 (Rev. B) 8/04/2014
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17/06/2011

Diseño y desarrollo

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Modelo de simulación

Encrypted TPS61241 PSpice Transient Model Package (Rev. A)

SLVMAT9A.ZIP (79 KB) - Modelo PSpice
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