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

TPS62675

AKTIV

Hocheffizienter Abwärtswandler, 500 mA, 6 MHz, Vout = 1,2V

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Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
TPS62801 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

TPS62675

AKTIV
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Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Switching frequency (min) (kHz) 5400 Switching frequency (max) (kHz) 6600 Features Enable, Forced PWM, Light load efficiency, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Switching frequency (min) (kHz) 5400 Switching frequency (max) (kHz) 6600 Features Enable, Forced PWM, Light load efficiency, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
DSBGA (YFD) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 92% Efficiency at 6MHz Operation
  • 17µA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP) Ultra-Thin Packaging, 0.4 mm Max. Height
  • 92% Efficiency at 6MHz Operation
  • 17µA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP) Ultra-Thin Packaging, 0.4 mm Max. Height

The TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x 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 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. 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 TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x 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 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. 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.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS6267x 500-mA/650-mA, 6-MHz High-Efficiency Step-Down Converter in Low Profile Chip Scale Packaging (Height < 0.4mm) datasheet (Rev. G) PDF | HTML 17 Jan 2017
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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