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AC/DC & DC/DC converters (integrated FET)

TPS62651

AKTIV

Hocheffizienter Abwärtswandler, 800 mA, 6 MHz, mit I2C-kompatibler Schnittstelle

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Datenblatt

TPS62651

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 0.8 Vin (min) (V) 2.3 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 5400 Switching frequency (max) (kHz) 6600 Features Enable, Light load efficiency, Output discharge, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.75 Vout (max) (V) 1.4375 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000038
Iout (max) (A) 0.8 Vin (min) (V) 2.3 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 5400 Switching frequency (max) (kHz) 6600 Features Enable, Light load efficiency, Output discharge, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.75 Vout (max) (V) 1.4375 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000038
DSBGA (YFF) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • 86% Efficiency at 6 MHz Operation
  • 38µA Quiescent Current
  • Wide VIN Range From 2.3 V to 5.5 V
  • 6MHz Regulated Frequency Operation
  • Best-In-Class Load and Line Transient
  • ±2% PWM DC Voltage Accuracy
  • Automatic PFM/PWM Mode Switching
  • Low Ripple Light-Load PFM
  • I2C Compatible Interface up to 3.4 Mbps
  • Pin-Selectable Output Voltage (VSEL)
  • Internal Soft-Start, <150-µs Start-Up Time
  • Current Overload and Thermal Shutdown Protection
  • Three Surface-Mount External Components Required
    (One MLCC Inductor, Two Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size <13mm2
  • Available in a 9-Pin NanoFree (CSP) Packaging
  • APPLICATIONS
    • SmartReflex Compliant Power Supply
    • OMAP Application Processor Core Supply
    • Cell Phones, Smart-Phones
    • Micro DC-DC Converter Modules

NanoFree Is a trademark of Texas Instruments
SmartReflex Is a trademark of Texas Instruments
OMAP Is a trademark of Texas Instruments
  • 86% Efficiency at 6 MHz Operation
  • 38µA Quiescent Current
  • Wide VIN Range From 2.3 V to 5.5 V
  • 6MHz Regulated Frequency Operation
  • Best-In-Class Load and Line Transient
  • ±2% PWM DC Voltage Accuracy
  • Automatic PFM/PWM Mode Switching
  • Low Ripple Light-Load PFM
  • I2C Compatible Interface up to 3.4 Mbps
  • Pin-Selectable Output Voltage (VSEL)
  • Internal Soft-Start, <150-µs Start-Up Time
  • Current Overload and Thermal Shutdown Protection
  • Three Surface-Mount External Components Required
    (One MLCC Inductor, Two Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size <13mm2
  • Available in a 9-Pin NanoFree (CSP) Packaging
  • APPLICATIONS
    • SmartReflex Compliant Power Supply
    • OMAP Application Processor Core Supply
    • Cell Phones, Smart-Phones
    • Micro DC-DC Converter Modules

NanoFree Is a trademark of Texas Instruments
SmartReflex Is a trademark of Texas Instruments
OMAP Is a trademark of Texas Instruments

The TPS6265x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6265x supports up to 800mA load current and allows the use of small, low cost inductors and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. With an output voltage range adjustable via I2C interface down to 0.75V, the device supports low-voltage DSPs and processors core power supplies in smart-phones and handheld computers.

The TPS6265x operates at a regulated 6MHz switching frequency and enters the efficiency optimized power-save mode operation at light load currents to maintain high efficiency over the entire load current range. In the shutdown mode, the current consumption is reduced to less than 3.5µA.

The serial interface is compatible with Standard, Fast/Fast Plus and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with voltage steps down to 12.5mV, for setting the output voltage or reprogramming the mode of operation (PFM/PWM or Forced PWM) for instance.

The TPS6265x is available in an 9-pin chip-scale package (CSP).

The TPS6265x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6265x supports up to 800mA load current and allows the use of small, low cost inductors and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. With an output voltage range adjustable via I2C interface down to 0.75V, the device supports low-voltage DSPs and processors core power supplies in smart-phones and handheld computers.

The TPS6265x operates at a regulated 6MHz switching frequency and enters the efficiency optimized power-save mode operation at light load currents to maintain high efficiency over the entire load current range. In the shutdown mode, the current consumption is reduced to less than 3.5µA.

The serial interface is compatible with Standard, Fast/Fast Plus and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with voltage steps down to 12.5mV, for setting the output voltage or reprogramming the mode of operation (PFM/PWM or Forced PWM) for instance.

The TPS6265x is available in an 9-pin chip-scale package (CSP).
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Technische Dokumentation

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Alle anzeigen 9
Typ Titel Datum
* Data sheet 800-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER datasheet (Rev. B) 25 Jul 2011
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dez 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Okt 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Okt 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
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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Bestellen & Qualität

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  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
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  • Montagestandort

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