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

TPS62693

AKTIV

Hocheffizienter Abwärtswandler, 800 mA, 3 MHz, TPS6269x

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Datenblatt

TPS62693

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.8 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Switching frequency (min) (kHz) 2700 Switching frequency (max) (kHz) 3000 Features Enable, Forced PWM, Light load efficiency, Output discharge, Spread Spectrum 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) 0.8 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Switching frequency (min) (kHz) 2700 Switching frequency (max) (kHz) 3000 Features Enable, Forced PWM, Light load efficiency, Output discharge, Spread Spectrum 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 (YFD) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 95% Efficiency at 3MHz Operation
  • 21 µA Quiescent Current
  • 3 MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • High Duty-Cycle Operation
  • ±2% Total DC Voltage Accuracy
  • Load and Line Transient
  • Excellent AC Load Regulation
  • Low Ripple Light-Load PFM Mode
  • ≥40 dB VIN PSRR (1 kHz to 10 kHz)
  • Internal Soft Start, 350-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 (CSP)
  • Available in a 6-Pin NanoFree (CSP)
  • 95% Efficiency at 3MHz Operation
  • 21 µA Quiescent Current
  • 3 MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • High Duty-Cycle Operation
  • ±2% Total DC Voltage Accuracy
  • Load and Line Transient
  • Excellent AC Load Regulation
  • Low Ripple Light-Load PFM Mode
  • ≥40 dB VIN PSRR (1 kHz to 10 kHz)
  • Internal Soft Start, 350-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 (CSP)
  • Available in a 6-Pin NanoFree (CSP)

The TPS62693 device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS62693 supports up to 800-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 output voltage versions are available in the range from 2.2 V up to 3.3 V.

The TPS62693 operates at a regulated 3-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 21 µA (typical) 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 TPS62693 device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS62693 supports up to 800-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 output voltage versions are available in the range from 2.2 V up to 3.3 V.

The TPS62693 operates at a regulated 3-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 21 µA (typical) 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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Typ Titel Datum
* Data sheet 800-mA, 3-MHz High-Efficiency Step-Down Converter, TPS6269x datasheet 16 Jun 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
User guide TPS6269xEVM-076 Evaluation Module (Rev. A) 26 Okt 2011

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

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.
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Gerberdatei

PWR076A Gerbers

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