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

TPS54226

AKTIV

4,5 V bis 18 V-Eingang, 2 A, Synchron-Abwärtswandler mit Eco-Mode™

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TPS562211 AKTIV Synchroner Abwärtswandler, 4,2 bis 18 V, 2 A, mit 1 % Genauigkeit, PG/SS und PFM/Forced-PWM im SOT58 This product has improved performance, selectable power good or soft start feature

TPS54226

AKTIV
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Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Iq (typ) (µA) 800 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Iq (typ) (µA) 800 Duty cycle (max) (%) 90
HTSSOP (PWP) 14 32 mm² 5 x 6.4 VQFN (RGT) 16 9 mm² 3 x 3
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VCC Input Voltage Range: 4.5 V to 18 V
  • Wide VIN Input Voltage Range: 2 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 160 mΩ (High Side) and 110 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • Auto-Skip Eco-Mode™ for High Efficiency at Light Load
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Mode
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

Eco-Mode Is a trademark of Texas Instruments
PowerPAD Is a trademark of Texas Instruments
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VCC Input Voltage Range: 4.5 V to 18 V
  • Wide VIN Input Voltage Range: 2 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 160 mΩ (High Side) and 110 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • Auto-Skip Eco-Mode™ for High Efficiency at Light Load
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Mode
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

Eco-Mode Is a trademark of Texas Instruments
PowerPAD Is a trademark of Texas Instruments

The TPS54226 is a adaptive on-time D-CAP2™ mode synchronous buck converter. TheTPS54226 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54226 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency Eco-Mode operation at light load for high efficiency. The TPS54226 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VCC input, and from 2-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54226 is available in the 14 pin HTSSOP or 16 pin QFN package, and designed to operate from –40°C to 85°C.

The TPS54226 is a adaptive on-time D-CAP2™ mode synchronous buck converter. TheTPS54226 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54226 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency Eco-Mode operation at light load for high efficiency. The TPS54226 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VCC input, and from 2-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54226 is available in the 14 pin HTSSOP or 16 pin QFN package, and designed to operate from –40°C to 85°C.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet 4.5V to 18V Input, 2-A Synchronous Step-Down SWIFT Converter with Eco-Mode datasheet (Rev. E) 25 Jul 2011
User guide TPS54226 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 27 Okt 2021
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 06 Feb 2019
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 02 Jan 2013
Application note Understanding Thermal Dissipation and Design of a Heatsink 04 Mai 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

TPS54226EVM-539 — TPS54226 Abwärts-DCAP2-Modus-Wandler – Evaluierungsmodul

The TPS54226EVM-539 is a fully assembled and tested circuit for evaluating the TPS54428 synchronous step-down converter. The TPS54226EVM-539 operates from a 4.5-V to 18-V input and provides a 1.05-V output up to 2 A. The main control loop of TPS54226 uses D-CAP2™ mode control, which provides (...)

Benutzerhandbuch: PDF | HTML
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Simulationsmodell

TPS54226 TINA-TI Transient Reference Design

SLVM223.TSC (201 KB) - TINA-TI Reference Design
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Simulationsmodell

TPS54226 TINA-TI Transient Spice Model

SLVM224.ZIP (40 KB) - TINA-TI Spice Model
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Simulationsmodell

TPS54226 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM293A.ZIP (41 KB) - PSpice Model
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Referenzdesigns

TIDA-010011 — Referenzdesign für hocheffiziente Stromversorgungsarchitektur für Schutzrelais-Prozessormodul

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Design guide: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HTSSOP (PWP) 14 Ultra Librarian
VQFN (RGT) 16 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

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  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
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  • Montagestandort

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