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LM61480T-Q1

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Abwärtswandler mit niedrigen EMI-Werten, thermisch optimiertem Gehäuse und doppelseitiger Kühlung fü

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LM61480T-Q1

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Produktdetails

Rating Automotive Topology Buck Iout (max) (A) 8 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, Thermally-enhanced packaging (TEP), UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 8 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, Thermally-enhanced packaging (TEP), UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
VQFN-HR (VAM) 16 15.75 mm² 4.5 x 3.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load at 5VOUT
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
  • Thermally enhanced package provides exposed top and bottom thermal pads and enables dual-side cooling with RθJC(top) = 0.64°C/W
  • Pin compatible with LM62460-Q1, LM61480-Q1, and LM61495-Q1
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load at 5VOUT
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
  • Thermally enhanced package provides exposed top and bottom thermal pads and enables dual-side cooling with RθJC(top) = 0.64°C/W
  • Pin compatible with LM62460-Q1, LM61480-Q1, and LM61495-Q1

The LM614xxT-Q1 buck converters are automotive-focused regulators providing adjustable output voltage, which can be set from 1V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3V to 36V and have transient tolerance up to 42V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode, the device automatically transitions between fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

The LM614xxT-Q1 buck converters are automotive-focused regulators providing adjustable output voltage, which can be set from 1V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3V to 36V and have transient tolerance up to 42V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode, the device automatically transitions between fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet LM614xxT-Q1 3V to 36V, 8A/10A, Automotive, Buck Converter Optimized for Power Density and Low EMI in a Thermally Enhanced Package for Dual Side Cooling datasheet (Rev. B) PDF | HTML 04 Feb 2026
Functional safety information LM62460-Q1, LM61480(T)-Q1, and LM61495(T)-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 12 Dez 2024

Design und Entwicklung

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Evaluierungsplatine

LM61495RPHEVM — LM61495-Q1 Synchroner 10 A-/400 kHz-Abwärtswandler – Evaluierungsmodul

Das Evaluierungsmodul (EVM) LM61495RPHEVM ist eine vollständig zusammengestellte und getestete Platine zur Evaluierung des Synchron-Abwärtswandlers LM61495-Q1.  Der LM61495-Q1 bietet einen hervorragenden Wirkungsgrad, einen niedrigen IQ und geringe EMI-Werte bei einer kleinen Lösungsgröße.
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