Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)
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LM64460-Q1

AKTIV

3-V bis 36-V, 6-A, rauscharmer Synchron-Abwärtswandler für die Automobilindustrie

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Datenblatt

LM64460-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 7 Duty cycle (max) (%) 87
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 7 Duty cycle (max) (%) 87
VQFN-FCRLF (RYF) 22 14 mm² 4 x 3.5
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC converter
    • Wide input voltage range of 3 V to 36 V with tolerance for load-dump transients up to 42 V
    • 1% accurate, fixed 3.3-V, 5-V, or adjustable output voltage from 1 V to 95% V IN
    • 150°C maximum junction temperature
    • Fixed 2.1-MHz switching frequency (adjustable from 200 kHz to 2.2 MHz using a SYNC signal)
  • Improved reliability with optimized pinout design and clearance for short-circuit-to-adjacent-pin test
  • Optimized for low EMI requirements
    • Enhanced HotRod™ QFN package with dual input paths reduces switch-node ringing
    • Pin-configurable spread spectrum modulation
    • Selectable FPWM or PFM mode at light loads
  • High efficiency across the full load range
    • 92.5% at 13.5 V IN, 5 V OUT, 6 A, 2.1 MHz
    • No-load input current: 7-µA typical at 3.3 V OUT
    • Shutdown quiescent current: 0.6-µA typical
    • 0.6-V typical dropout at 6-A load
    • External bias option for improved efficiency
  • Create a custom regulator design using the LM64460-Q1 with WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC converter
    • Wide input voltage range of 3 V to 36 V with tolerance for load-dump transients up to 42 V
    • 1% accurate, fixed 3.3-V, 5-V, or adjustable output voltage from 1 V to 95% V IN
    • 150°C maximum junction temperature
    • Fixed 2.1-MHz switching frequency (adjustable from 200 kHz to 2.2 MHz using a SYNC signal)
  • Improved reliability with optimized pinout design and clearance for short-circuit-to-adjacent-pin test
  • Optimized for low EMI requirements
    • Enhanced HotRod™ QFN package with dual input paths reduces switch-node ringing
    • Pin-configurable spread spectrum modulation
    • Selectable FPWM or PFM mode at light loads
  • High efficiency across the full load range
    • 92.5% at 13.5 V IN, 5 V OUT, 6 A, 2.1 MHz
    • No-load input current: 7-µA typical at 3.3 V OUT
    • Shutdown quiescent current: 0.6-µA typical
    • 0.6-V typical dropout at 6-A load
    • External bias option for improved efficiency
  • Create a custom regulator design using the LM64460-Q1 with WEBENCH Power Designer

The LM64460-Q1 derives from a family of automotive synchronous buck DC/DC converters with excellent efficiency and ultra-low I Q. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input voltage range from 3 V to 36 V, with support for load-dump transients up to 42 V. The converter implements soft recovery from dropout to eliminate overshoot on the output.

The LM64460-Q1 incorporates numerous features for excellent EMI performance, including spread-spectrum frequency modulation, a low-EMI Enhanced HotRod QFN package that mitigates switch-node ringing, and a symmetrical pinout for ideal input capacitor placement. The switching frequency is synchronizable between 200 kHz and 2.2 MHz to avoid sensitive frequency bands, while optimizing efficiency or design size based on the specific requirements of the application.

PFM mode enables frequency foldback during light-load operation, allowing an unloaded current consumption of only 7 µA (typical) and high light-load efficiency. A seamless transition between PWM and PFM modes, along with low MOSFET on-resistances and an external bias input, provides exceptional efficiency and thermal performance across the entire load range. The package has several NC pins between critical power pins, which improve the Failure Modes and Effects Analysis (FMEA) result.

The LM64460-Q1 derives from a family of automotive synchronous buck DC/DC converters with excellent efficiency and ultra-low I Q. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input voltage range from 3 V to 36 V, with support for load-dump transients up to 42 V. The converter implements soft recovery from dropout to eliminate overshoot on the output.

The LM64460-Q1 incorporates numerous features for excellent EMI performance, including spread-spectrum frequency modulation, a low-EMI Enhanced HotRod QFN package that mitigates switch-node ringing, and a symmetrical pinout for ideal input capacitor placement. The switching frequency is synchronizable between 200 kHz and 2.2 MHz to avoid sensitive frequency bands, while optimizing efficiency or design size based on the specific requirements of the application.

PFM mode enables frequency foldback during light-load operation, allowing an unloaded current consumption of only 7 µA (typical) and high light-load efficiency. A seamless transition between PWM and PFM modes, along with low MOSFET on-resistances and an external bias input, provides exceptional efficiency and thermal performance across the entire load range. The package has several NC pins between critical power pins, which improve the Failure Modes and Effects Analysis (FMEA) result.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LM64460-Q13-V to 36-V, 6-AAutomotiveSynchronous Buck DC/DC ConverterWith Pin Selectable Light-Load Mode,Optimized for Reliability and Low EMI datasheet (Rev. A) PDF | HTML 02 Okt 2023
User guide LM63460-Q1 and LM64460-Q1 EVM User's Guide PDF | HTML 16 Dez 2021
Certificate LM64460EVM-2MHZ EU RoHS Declaration of Conformity (DoC) 09 Dez 2021
Functional safety information LM64460-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 27 Sep 2021

Design und Entwicklung

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

Evaluierungsplatine

LM63460EVM — LM63460-Q1 Evaluierungsmodul für synchronen Abwärtswandler, 5,5 bis 36 V, 6 A, mit niedrigen elektro

Das kompakte LM63460EVM-2MHz-Evaluierungsmodul (EVM) wurde dafür entwickelt, die Leistung des hochleistungsfähigen synchronen LM63460-Q1-DC-DC-Abwärtswandlers für die Automobilindustrie zu demonstrieren. Das EVM arbeitet über einen großen Eingangsspannungsbereich von 5,5 V bis 36 V, um einen festen (...)

Benutzerhandbuch: PDF | HTML
Nicht verfügbar auf TI.com
Berechnungstool

LM63460-LM64460DESIGN-CALC — LM63460-Q1 und LM64460-Q1 Schnellstart-Designtool

Willkommen beim Wandler-Schnellstart-Designtool LM63460-Q1 und LM64460-Q1. Dieses eigenständige Tool unterstützt Stromversorgungsingenieure und ermöglicht diesen das Design eines DC/DC-Abwärtsreglers basierend auf dieser Familie synchroner Abwärtsstromwandler. Somit kann der Benutzer schnell zu (...)
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Berechnungstool

SNVR518 — LM63460-Q1 and LM64460-Q1 DC/DC Converter Quickstart Design Tool

Welcome to LM63460-Q1 and LM64460-Q1 converter quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on this family of synchronous buck power converters. As such, the user can expeditiously arrive at an (...)

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
LM63460-Q1 — Synchroner Abwärtswandler für die Automobilindustrie, 3 bis 36 V, 6 A, geringe EMI-Werte, in Gehäuse LM64460-Q1 — 3-V bis 36-V, 6-A, rauscharmer Synchron-Abwärtswandler für die Automobilindustrie
Hardware-Entwicklung
Evaluierungsplatine
LM63460EVM — LM63460-Q1 Evaluierungsmodul für synchronen Abwärtswandler, 5,5 bis 36 V, 6 A, mit niedrigen elektro
Herunterladen
Leiterplatten-Layout

LM63460-Q1, LM64460-Q1 EVM PCB Layout Files

SNVR515.ZIP (5089 KB)
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN-FCRLF (RYF) 22 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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