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TPS62590-Q1

AKTIV

Abwärtswandler (Buck) für die Automobilindustrie, 2,5 bis 6 V, 2,25 MHz Festfrequenz, 1A, in SON-Geh

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Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
TPS628501-Q1 AKTIV Abwärtswandler für die Automobilindustrie, 2,7 V bis 6 V, 1 A, im SOT-583-Gehäuse Smaller size with output voltage accuracy ±1%.

Produktdetails

Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 6 Vout (min) (V) 0.75 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 105 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 6 Vout (min) (V) 0.75 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 105 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for Automotive Applications
  • Output Current up to 1000 mA
  • Input Voltage Range from 2.5 V to 6 V
  • High Efficiency Step Down Converter
  • Output Voltage Accuracy in PWM mode ±2.5%
  • Typical 15-µA Quiescent Current
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • 100% Duty Cycle for Lowest Dropout
  • Qualified for Automotive Applications
  • Output Current up to 1000 mA
  • Input Voltage Range from 2.5 V to 6 V
  • High Efficiency Step Down Converter
  • Output Voltage Accuracy in PWM mode ±2.5%
  • Typical 15-µA Quiescent Current
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • 100% Duty Cycle for Lowest Dropout

The TPS62590-Q1 device is a high-efficiency synchronous step-down converter, optimized for space constrained applications and very low quiescent current requirements. It provides up to 1000-mA output current from preregulated low voltage rails and consumes 15 µA (typical) in power-save mode.

With an input voltage range of 2.5 V to 6 V and an output voltage accuracy of 2.5%, the device is targeted to power a large variety of automotive applications.

The TPS62590-Q1 family operates at a 2.25-MHz fixed switching frequency and enters a power-save mode at light load currents to maintain a high efficiency over the entire load current range.

The power-save mode is optimized for low output-voltage ripple. For low-noise applications, the device can be forced into fixed-frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62590-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590-Q1 is available in a 2-mm × 2-mm 6-pin SON package with a thermal pad for improved thermal performance.

The TPS62590-Q1 device is a high-efficiency synchronous step-down converter, optimized for space constrained applications and very low quiescent current requirements. It provides up to 1000-mA output current from preregulated low voltage rails and consumes 15 µA (typical) in power-save mode.

With an input voltage range of 2.5 V to 6 V and an output voltage accuracy of 2.5%, the device is targeted to power a large variety of automotive applications.

The TPS62590-Q1 family operates at a 2.25-MHz fixed switching frequency and enters a power-save mode at light load currents to maintain a high efficiency over the entire load current range.

The power-save mode is optimized for low output-voltage ripple. For low-noise applications, the device can be forced into fixed-frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62590-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590-Q1 is available in a 2-mm × 2-mm 6-pin SON package with a thermal pad for improved thermal performance.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet TPS62590-Q1 Automotive 2.25-MHz 1-A Step-Down Converter In 2-mm × 2-mm SON Package datasheet (Rev. B) PDF | HTML 15 Okt 2015
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dez 2023
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
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
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
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

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

Evaluierungsplatine

TPS62590EVM-454 — Evaluierungsmodul TPS62590EVM-454

The TPS62590EVM-454 evaluation module facilitates evaluation of the TPS62590 1A synchronous step-down DC/DC converter.
Benutzerhandbuch: PDF
Simulationsmodell

TPS62590 TINA-TI Transient Reference Design

SLVM237.TSC (129 KB) - TINA-TI Reference Design
Simulationsmodell

TPS62590 TINA-TI Transient Spice Model

SLVM238.ZIP (35 KB) - TINA-TI Spice Model
Simulationsmodell

TPS62590 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM122A.ZIP (37 KB) - PSpice Model
Berechnungstool

SLVC780 Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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