TPS54418
Synchroner SWIFT™-Abwärtswandler, 2,95 V bis 6 V Eingangsspannung, 4 A
TPS54418
- Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 4-A loads
- Switching Frequency: 200 kHz to 2 MHz
- Voltage Reference Over Temperature: 0.8 V ± 1%
- Synchronizes to External Clock
- Adjustable Soft Start/Sequencing
- UV and OV Power-Good Output
- Low Operating and Shutdown Quiescent Current
- Safe Start-Up into Prebiased Output
- Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
- Operating Junction Temperature Range: –40°C to 150°C
- Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
- Create a Custom Design Using the TPS54418 With the WEBENCH® Power Designer
TheTPS54418 device is a full-featured, 6-V, 4-A, synchronous, step-down current-mode converter with two integrated MOSFETs.
The TPS54418 device 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 device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.
The TPS54418 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.
Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.
Undervoltage 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 soft-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition.
For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
Technische Dokumentation
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | TPS54418 2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter datasheet (Rev. E) | PDF | HTML | 06 Apr 2018 |
| Application note | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 25 Mär 2024 | |
| Application note | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 26 Jul 2021 | |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 08 Apr 2021 | ||
| Application note | Calculating Efficiency (Rev. A) | 06 Mär 2020 | ||
| Application note | Solve Point-of-Load Power Design Challenges: Single Board Computer Applications | 24 Aug 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Application note | Not All Jitter Is Created Equal (Rev. A) | 04 Jul 2015 | ||
| Application note | Understanding Thermal Dissipation and Design of a Heatsink | 04 Mai 2011 | ||
| Application note | Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) | 15 Sep 2010 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
TPS54418EVM-375 — TPS54418 3,3 V-Eingang, 1,8 V-Ausgang, 4 A, SWIFT™ – Evaluierungsmodul
TPS54418 TINA-TI Average Reference Design
TPS54418 TINA-TI Average Spice Model (Rev. A)
TPS54418 Unencrypted PSpice Average Model Package (Rev. A)
TPS54418 Unencrypted PSpice Transient Model Package (Rev. B)
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.
Support und Schulungen
TI E2E™-Foren mit technischem Support von TI-Ingenieuren
Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.
Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support.