Home Energiemanagement DC/DC-Schaltregler DC/DC-Wandler
Home
Energiemanagement
DC/DC-Schaltregler
DC/DC-Wandler
NEU

LM654B0-Q1

AKTIV

Automotive, 36VIN, 20A synchronous step-down converter for high efficiency and low EMC

Jetzt bestellen
Datenblatt

LM654B0-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Automotive Topology Buck Iout (max) (A) 20 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 32 Vout (min) (V) 1 Features Adjustable soft start, Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Stackable, Thermal shutdown, UVLO adjustable EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.0000021 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 20 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 32 Vout (min) (V) 1 Features Adjustable soft start, Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Stackable, Thermal shutdown, UVLO adjustable EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.0000021 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
WQFN-FCRLF (VDA) 26 20.25 mm² 4.5 x 4.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Built in clocking for stacking of converters
  • Internal or external compensation
  • Pin selectable output voltage 3.3V and 5V fixed or adjustable from 0.8V to 0.9 × VIN
  • Wide input voltage range: 3V to 36V
  • Mitigated interference and noise technology – architecture 1 (MINT 1)
    • Optimized for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • Mode pin configurable +8.5% or +17% dual-random spread spectrum reducing peak emissions
    • Enhanced HotRod™ QFN package with symmetrical pinout
  • Switching frequency from 300kHz to 2.2MHz
    • Pin-configurable AUTO or FPWM operation
    • Can be synchronized to external clock
  • Low minimum on time: 32ns (typical)
    • Enables 36V to 3.3V conversion at 2.2MHz
  • High-efficiency and high power density
    • > 94% efficiency at 12VIN to 5VOUT, IOUT = 15A, 400kHz
    • 8µA PFM no-load input current with bias pin at VOUT
    • 4.5mm × 4.5mm eQFN-26 with wettable flanks
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Built in clocking for stacking of converters
  • Internal or external compensation
  • Pin selectable output voltage 3.3V and 5V fixed or adjustable from 0.8V to 0.9 × VIN
  • Wide input voltage range: 3V to 36V
  • Mitigated interference and noise technology – architecture 1 (MINT 1)
    • Optimized for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • Mode pin configurable +8.5% or +17% dual-random spread spectrum reducing peak emissions
    • Enhanced HotRod™ QFN package with symmetrical pinout
  • Switching frequency from 300kHz to 2.2MHz
    • Pin-configurable AUTO or FPWM operation
    • Can be synchronized to external clock
  • Low minimum on time: 32ns (typical)
    • Enables 36V to 3.3V conversion at 2.2MHz
  • High-efficiency and high power density
    • > 94% efficiency at 12VIN to 5VOUT, IOUT = 15A, 400kHz
    • 8µA PFM no-load input current with bias pin at VOUT
    • 4.5mm × 4.5mm eQFN-26 with wettable flanks

The LM654xx-Q1 is a buck converter family designed for high efficiency, high-power density, and low EMI performance with mitigated interference and noise technology (MINT 1) switcher technology for automotive applications. The converter operates over a wide input voltage range of 3V to 36V with pin selectable fixed output voltages of 3.3V and 5V or an adjustable output.

The low EMI operation is enabled with minimized loop inductance, optimized SW node slew-rate, and pin-selectable +8.5% or +17% dual-random spread spectrum (DRSS). The DRSS significantly reduces peak emissions through a combination of triangular and pseudo-random modulation while keeping output voltage ripple very low.

The current-mode control architecture with 32ns typical minimum on-time allows high conversion ratios at high frequencies, fast transient response, and excellent load and line regulation.

The LM654xx-Q1 is a buck converter family designed for high efficiency, high-power density, and low EMI performance with mitigated interference and noise technology (MINT 1) switcher technology for automotive applications. The converter operates over a wide input voltage range of 3V to 36V with pin selectable fixed output voltages of 3.3V and 5V or an adjustable output.

The low EMI operation is enabled with minimized loop inductance, optimized SW node slew-rate, and pin-selectable +8.5% or +17% dual-random spread spectrum (DRSS). The DRSS significantly reduces peak emissions through a combination of triangular and pseudo-random modulation while keeping output voltage ripple very low.

The current-mode control architecture with 32ns typical minimum on-time allows high conversion ratios at high frequencies, fast transient response, and excellent load and line regulation.
filter Andere DC/DC-Wandler suchen
Herunterladen Video mit Transkript ansehen Video
Weitere Informationen anfordern

Das vollständige Datenblatt, das Berechnungstool und weitere Informationen sind verfügbar. Jetzt anfordern

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 2
Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet LM654xx-Q1 Pin-Compatible 20A (25A Peak), 15A, 12A, 10A, Stackable Automotive Buck Converters With Mitigated Interference and Noise Technology (MINT) datasheet (Rev. A) PDF | HTML 29 Jun 2026
Functional safety information LM6x4xx Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 30 Jun 2026

Design und Entwicklung

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

Evaluierungsplatine

LM654B0EVM-1PH — LM654B0-Q1 – Evaluierungsmodul

Das Evaluierungsmodul (EVM) LM654B0EVM von Texas Instruments hilft Entwicklern, den Betrieb und die Leistung der LM654xx-Produktfamilie von Abwärtswandlern mit großem Eingangsspannungsbereich zu bewerten. Bei der LM654xx Familie handelt es sich um einfach zu bedienende synchrone Abwärtswandler, (...)
Benutzerhandbuch: PDF
Anfordern
Designtool

LM654XXDESIGN-CALC — LM654XX-Q1 QuickStart design tool

QuickStart design calculator for the LM654XX-Q1
Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware
Herunterladen
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN-FCRLF (VDA) 26 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

Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Alle Forenthemen auf Englisch anzeigen

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. ​​​​​​​​​​​​​​

Videos