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TPS630252

AKTIV

Abwärts/Aufwärts-Wandler mit Schalter und Einzelinduktor, 4 A

Produktdetails

Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 4 Features Enable, Light-load efficiency, Load Disconnect, Output discharge, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 4 Features Enable, Light-load efficiency, Load Disconnect, Output discharge, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 100
DSBGA (YFF) 20 3.96 mm² 1.8 x 2.2
  • Real Buck or Boost Operation with Automatic and
    Seamless Transition Between Buck and Boost
    Operation
  • 2.3 V to 5.5 V input voltage range
  • 2 A Continuous Output Current : VIN≥ 2.5 V,
    VOUT= 3.3 V
  • Adjustable and Fixed Output Voltage
  • Efficiency up to 95% in Buck or Boost Mode and
    up to 97% when VIN=VOUT
  • 2.5MHz Typical Switching Frequency
  • 35-µA Operating Quiescent Current
  • Integrated Soft Start
  • Power Save Mode
  • True Shutdown Function
  • Output Capacitor Discharge Function
  • Over-Temperature Protection and Over-Current
    Protection
  • Wide Capacitance Selection
  • Small 1.766 mm × 2.086 mm, 20-pin WCSP and
    2.5 mm × 3 mm, 14-pin Hot Rod
  • Real Buck or Boost Operation with Automatic and
    Seamless Transition Between Buck and Boost
    Operation
  • 2.3 V to 5.5 V input voltage range
  • 2 A Continuous Output Current : VIN≥ 2.5 V,
    VOUT= 3.3 V
  • Adjustable and Fixed Output Voltage
  • Efficiency up to 95% in Buck or Boost Mode and
    up to 97% when VIN=VOUT
  • 2.5MHz Typical Switching Frequency
  • 35-µA Operating Quiescent Current
  • Integrated Soft Start
  • Power Save Mode
  • True Shutdown Function
  • Output Capacitor Discharge Function
  • Over-Temperature Protection and Over-Current
    Protection
  • Wide Capacitance Selection
  • Small 1.766 mm × 2.086 mm, 20-pin WCSP and
    2.5 mm × 3 mm, 14-pin Hot Rod

The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. 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 device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.

The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. 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 device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet High Current Single Inductor Buck-Boost Converter datasheet (Rev. B) 16 Jun 2014
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML 09 Jun 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dez 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 09 Jul 2018
User guide TPS63025xEVM-553 25 Apr 2014
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design und Entwicklung

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Evaluierungsplatine

TPS630250EVM-553 — TPS630250 DSBGA 4-A-Abwärts-/Aufwärtsregler – Evaluierungsmodul

Das TPS63025xEVM-553 ermöglicht das Testen und Evaluieren der TPS63025-Bausteinfamilie von Texas Instruments , eines vollständig integrierten Abwärts-Aufwärts-Wandler mit 2,5 MHz (typ.).

Die TPS63025x-Bausteine sind hocheffiziente Bausteine mit geringem Ruhestrom in Abwärts-/Aufwärts-Topologie. Sie (...)

Benutzerhandbuch: PDF
Simulationsmodell

TPS630252 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAJ0A.ZIP (85 KB) - PSpice Model
Berechnungstool

SLVC808 Battery Lifetime Estimator

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DSBGA (YFF) 20 Ultra Librarian

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