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

TPS54319

AKTIV

Synchroner Abwärtswandler, 2,95 bis 6 V Eingangsspannung, 3 A, 2 MHz im QFN-Gehäuse 3 x 3 mm

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Datenblatt

TPS54319

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.95 Vin (max) (V) 6 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iq (typ) (µA) 360 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.95 Vin (max) (V) 6 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iq (typ) (µA) 360 Duty cycle (max) (%) 98
WQFN (RTE) 16 9 mm² 3 x 3
  • Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
  • 300kHz to 2MHz Switching Frequency
  • 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • Pin Compatible to TPS54318
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
      LCD Displays, CPE Equipment

SWIFT, SwitcherPro are trademarks of Texas Instruments.
  • Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
  • 300kHz to 2MHz Switching Frequency
  • 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • Pin Compatible to TPS54318
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
      LCD Displays, CPE Equipment

SWIFT, SwitcherPro are trademarks of Texas Instruments.

The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced QFN package.

The TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 45m MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced QFN package.

The TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 45m MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet 2.95 V to 6 V Input, 3-A Output, 2MHz, Synchronous Step Down Switcher With Integ datasheet 28 Jan 2010
White paper Abwägung der Vor- und Nachteile und Beschreibung der Technologien zur Verbesseru (Rev. C) PDF | HTML 14 Apr 2023
Technical article Smaller size now possible in 3A point-of-load converters PDF | HTML 03 Jun 2015
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15 Sep 2010
EVM User's guide TPS54319EVM-626 3-A, SWIFT Regulator Evaluation Module 19 Mai 2010

Design und Entwicklung

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

Evaluierungsplatine

TPS54319EVM-626 — Evaluierungsmodul für TPS54319 Abwärts-DC/DC-Wandler

The TPS54319EVM-626 is a fully assembled and tested circuit for evaluating the TPS54319 2.95V to 6V input 3A synchronous buck converter. There are terminal blocks for input and output. Additional test points are also provided.
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

TPS54319 TINA-TI Average Reference Design

SLVM489.TSC (261 KB) - TINA-TI Reference Design
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Simulationsmodell

TPS54319 TINA-TI Average Spice Model

SLVM488.ZIP (7 KB) - TINA-TI Spice Model
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Simulationsmodell

TPS54319 TINA-TI Transient Reference Design

SLVM467.TSC (218 KB) - TINA-TI Reference Design
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Simulationsmodell

TPS54319 TINA-TI Transient Spice Model

SLVM466.ZIP (55 KB) - TINA-TI Spice Model
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Simulationsmodell

TPS54319 Unencrypted PSpice Average Model Package (Rev. A)

SLVM373A.ZIP (136 KB) - PSpice Model
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Simulationsmodell

TPS54319 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM292B.ZIP (41 KB) - PSpice Model
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Berechnungstool

TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator

The Design Calculator Plus Application Note (SLVA352A) Calculator Tool calculates the critical external component values for the TPS54620/TPS54622/TPS54521/TPS54320/TPS54618/TPS54418/TPS54318/TPS54218/TPS54319. The calculator includes power stage design, feature design and Type II and Type III (...)
Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
TPS54218 — 2,95 V bis 6 V-Eingang, 2A, Synchron-Abwärts-SWIFT™-Wandler TPS54318 — 2,95 V bis 6 V-Eingang, 3A, Synchron-Abwärts-SWIFT™-Wandler TPS54319 — Synchroner Abwärtswandler, 2,95 bis 6 V Eingangsspannung, 3 A, 2 MHz im QFN-Gehäuse 3 x 3 mm TPS54320 — Synchroner Abwärtswandler SWIFT™ für Eingangsspannungen von 4.5 V bis 17 V, 3 A TPS54418 — 2,95 V bis 6 V-Eingang, 4 A, Synchron-Abwärts-SWIFT™-Wandler TPS54521 — Synchroner 5-A-Abwärtswandler mit 17 V Eingangsspannung TPS54618 — Synchroner Abwärtswandler SWIFT™, 2,95 bis 6 V Eingangsspannung, 6 A TPS54620 — 4,5 V bis 17 V, 6 A-Synchron-SWIFT™-Abwärtswandler TPS54622 — 4,5-V- bis 17-V-, 6-A-Synchron-SWIFT™-Abwärtswandler mit Hiccup-Strombegrenzung TPS54821 — Synchroner Abwärtswandler, 4,5 bis 17 V Eingangsspannung, 8 A, mit Hiccup-Strombegrenzungsmodus TPS56921 — 4,5-V- bis 17-V-, 9-A-Synchron-Abwärtswandler mit VID-Steuerung
Hardware-Entwicklung
Evaluierungsplatine
TPS54418EVM-375 — TPS54418 3,3 V-Eingang, 1,8 V-Ausgang, 4 A, SWIFT™ – Evaluierungsmodul TPS54620EVM-374 — TPS54620 8 V–17 V, 6 A, SWIFT™-Wandler-Evaluierungsmodul
Software
Berechnungstool
TPS54620DESIGN-CALC — TPS54620 und TPS54XXX Strommodus-Abwärtswandler-Design-Rechner
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Referenzdesigns

TIDA-01378 — Breitband-Empfänger-Referenzdesign für Upstream DOCSIS 3.1-Anwendungen

This reference design consists of an analog front-end (AFE) signal chain for wideband receiver applications using the LMH2832 digitally controlled variable gain amplifier (DVGA) and ADS54J40 analog-to-digital converter (ADC). The design is primarily targeted for upstream DOCSIS 3.1 receiver (...)
Design guide: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN (RTE) 16 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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