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

TPS62619

AKTIV

Hocheffizienter Abwärtswandler, 350 mA, 6 MHz, 1,8 Vout

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Datenblatt

Eine neuere Version dieses Produkts ist verfügbar

open-in-new Alternativen vergleichen
Gleiche Funktionalität, andere Pinbelegung als verglichener Baustein
TPS62802 AKTIV Abwärtswandler mit extrem niedrigem IQ in einem 0,7 mm x 1,05 mm großen Chip-Scale-Gehäuse, 1,75-V- Smaller solution size and lower quiescent current

TPS62619

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 0.35 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, Forced PWM, Output discharge, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.8 Vout (max) (V) 1.8 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000031
Iout (max) (A) 0.35 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, Forced PWM, Output discharge, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.8 Vout (max) (V) 1.8 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000031
DSBGA (YFD) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 90% Efficiency at 6MHz Operation
  • 31µA Quiescent Current
  • Wide VIN Range From 2.3V to 5.5V
  • 6MHz Regulated Frequency Operation
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Automatic PFM/PWM Mode Switching
  • Low Ripple Light-Load PFM Mode
  • >50dB VIN PSRR (1kHz to 10kHz)
  • Internal Soft-Start, 100-µs Start-Up Time
  • Integrated Active Power-Down Sequencing (Optional)
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.4-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree (CSP)
    Ultra-Thin Packaging
  • APPLICATIONS
    • Cell Phones, Smart-Phones
    • WLAN, GPS and Bluetooth Applications
    • DTV Tuner Applications
    • DC/DC Micro Modules

NanoFree is a trademark of Texas Instruments.
  • 90% Efficiency at 6MHz Operation
  • 31µA Quiescent Current
  • Wide VIN Range From 2.3V to 5.5V
  • 6MHz Regulated Frequency Operation
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Automatic PFM/PWM Mode Switching
  • Low Ripple Light-Load PFM Mode
  • >50dB VIN PSRR (1kHz to 10kHz)
  • Internal Soft-Start, 100-µs Start-Up Time
  • Integrated Active Power-Down Sequencing (Optional)
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.4-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree (CSP)
    Ultra-Thin Packaging
  • APPLICATIONS
    • Cell Phones, Smart-Phones
    • WLAN, GPS and Bluetooth Applications
    • DTV Tuner Applications
    • DC/DC Micro Modules

NanoFree is a trademark of Texas Instruments.

The TPS6261x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6261x supports up to 350-mA load current, and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 5.5V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.2V to 2.3V.

The TPS6261x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 31µA (typ) during light load operation. For low-frequency noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

The TPS6261x is available in an 6-pin thin chip-scale package (CSP, 0.4mm max. height).

The TPS6261x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6261x supports up to 350-mA load current, and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 5.5V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.2V to 2.3V.

The TPS6261x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 31µA (typ) during light load operation. For low-frequency noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

The TPS6261x is available in an 6-pin thin chip-scale package (CSP, 0.4mm max. height).
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Technische Dokumentation

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Typ Titel Datum
* Data sheet 350-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN CHIP-SCALE PACKAGING datasheet (Rev. A) 05 Apr 2010
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dez 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 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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