Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)
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Energiemanagement
AC/DC- und DC/DC-Wandler (integrierter FET)

TPS62690

AKTIV

Hocheffizienter Abwärtswandler, 500 mA, 4 MHz, 2,85 Vout, in Chip-Scale-Gehäuse

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Datenblatt

TPS62690

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Switching frequency (min) (kHz) 3600 Switching frequency (max) (kHz) 4400 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Vout (min) (V) 2.85 Vout (max) (V) 2.85 Iq (typ) (µA) 19 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Switching frequency (min) (kHz) 3600 Switching frequency (max) (kHz) 4400 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Vout (min) (V) 2.85 Vout (max) (V) 2.85 Iq (typ) (µA) 19 Duty cycle (max) (%) 100
DSBGA (YFF) 6 1.4000000000000001 mm² 1 x 1.4000000000000001
  • 95% Efficiency at 4MHz Operation
  • 19µA Quiescent Current
  • 4MHz Regulated Frequency Operation
  • High Duty-Cycle Operation
  • ±2% Total DC Voltage Accuracy
  • Load and Line Transient
  • Excellent AC Load Regulation
  • Low Ripple Light-Load PFM Mode
  • ≥40dB VIN PSRR (1kHz to 10kHz)
  • Internal Soft Start, 250-µs Start-Up Time
  • Integrated Active Power-Down Sequencing (Optional)
  • Current Overload and Thermal Shutdown Protection
  • Three Surface-Mount External Components Required
    (One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size <12 mm2
  • Available in a 6-Pin NanoFree (CSP)
  • 95% Efficiency at 4MHz Operation
  • 19µA Quiescent Current
  • 4MHz Regulated Frequency Operation
  • High Duty-Cycle Operation
  • ±2% Total DC Voltage Accuracy
  • Load and Line Transient
  • Excellent AC Load Regulation
  • Low Ripple Light-Load PFM Mode
  • ≥40dB VIN PSRR (1kHz to 10kHz)
  • Internal Soft Start, 250-µs Start-Up Time
  • Integrated Active Power-Down Sequencing (Optional)
  • Current Overload and Thermal Shutdown Protection
  • Three Surface-Mount External Components Required
    (One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size <12 mm2
  • Available in a 6-Pin NanoFree (CSP)

The TPS6269x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6269x supports up to 600-mA load current, and allows the use of low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. Different fixed voltage output versions are available from 2.2V to 2.9V.

The TPS6269x operates at a regulated 4-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 19µA (typ) during light load operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, 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 TPS6269x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6269x supports up to 600-mA load current, and allows the use of low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. Different fixed voltage output versions are available from 2.2V to 2.9V.

The TPS6269x operates at a regulated 4-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 19µA (typ) during light load operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
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Technische Dokumentation

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Alle anzeigen 12
Typ Titel Datum
* Data sheet 500-mA/600-mA, 4-MHz High-Efficiency Step-Down Converter datasheet (Rev. B) 09 Jan 2012
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
User guide TPS6269xEVM-076 Evaluation Module (Rev. A) 26 Okt 2011
User guide TPS6269xEVM-076 Evaluation Module 15 Sep 2011
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

TPS62690EVM-076 — Evaluierungsmodul für TPS62690, 500-mA, 4-MHz, 2,85-V-Ausgang, hocheffizienter Abwärtswandler

The TPS6269xEVM-076 is a fully assembled and tested platform for evaluating the performance of the TPS6269x high-frequency, synchronous, step-down, dc-dc converters optimized forbattery-powered portable applications. This user’s guide document includes schematic diagrams, a printed-circuit board (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

TPS62692EVM-076 — TPS62692EVM-076 Evaluierungsplatine für hocheffizienten VIN-Abwärtswandler

Efficiency VIN Step Down Converter Evaluation Module Board

Demonstrate TPS62690/1/2/3 high efficiency VIN step down converter.
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Gerberdatei

PWR076A Gerbers

SLVC551.ZIP (501 KB)
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YFF) 6 Ultra Librarian
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Bestellen & Qualität

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  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
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  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
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