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LM63635C-Q1

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Automotive 3.5V-to-36V 3.25A step-down voltage converter

Product details

Vin (min) (V) 3.5 Vin (max) (V) 32 Vout (min) (V) 1 Vout (max) (V) 20 Iout (max) (A) 3.25 Iq (typ) (mA) 0.024 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 EMI features Spread Spectrum Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Automotive TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 99 Type Converter
Vin (min) (V) 3.5 Vin (max) (V) 32 Vout (min) (V) 1 Vout (max) (V) 20 Iout (max) (A) 3.25 Iq (typ) (mA) 0.024 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 EMI features Spread Spectrum Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Automotive TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 99 Type Converter
WSON (DRR) 12 9 mm² 3 x 3
  • AEC-Q100-Qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Supports automotive system requirements
    • Input voltage range: 3.5V to 36V
    • Short minimum on-time of 50ns
    • Good EMI performance
    • Psuedo-random spread spectrum
    • Compatible with CISPR 25
    • Low operating quiescent current of 23µA
    • Junction temperature range –40°C to +150°C
  • High design flexibility with minimal external components
    • Fixed VOUT at 3.3V or 5V
    • Fixed switching frequency at 400kHz or 2.1MHz
    • Output current up to 3.25A
  • Small design size
    • As small as: 14mm × 14mm for 3.25A, 2.2MHz with WSON package
    • Highly integrated design with low external component count
  • AEC-Q100-Qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Supports automotive system requirements
    • Input voltage range: 3.5V to 36V
    • Short minimum on-time of 50ns
    • Good EMI performance
    • Psuedo-random spread spectrum
    • Compatible with CISPR 25
    • Low operating quiescent current of 23µA
    • Junction temperature range –40°C to +150°C
  • High design flexibility with minimal external components
    • Fixed VOUT at 3.3V or 5V
    • Fixed switching frequency at 400kHz or 2.1MHz
    • Output current up to 3.25A
  • Small design size
    • As small as: 14mm × 14mm for 3.25A, 2.2MHz with WSON package
    • Highly integrated design with low external component count

The LM63635C-Q1 regulator is an easy-to-use, synchronous, step-down, DC/DC converter designed for rugged automotive applications. The LM63635C-Q1 can drive up to 3.25A of load current from an input of up to 36V. The converter has high light load efficiency and output accuracy in a small design size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM63635C-Q1 is available in a WSON 12-pin power package.

The LM63635C-Q1 regulator is an easy-to-use, synchronous, step-down, DC/DC converter designed for rugged automotive applications. The LM63635C-Q1 can drive up to 3.25A of load current from an input of up to 36V. The converter has high light load efficiency and output accuracy in a small design size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM63635C-Q1 is available in a WSON 12-pin power package.

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Type Title Date
* Data sheet LM63635C-Q1 3.5V to 36V, 3.25A, Automotive Step-Down Voltage Converter datasheet PDF | HTML 11 Jan 2024
Functional safety information LM63635C-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 18 Jan 2024

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LM63635DNEVM — LM63635DN evaluation module for 3.5-V to 36-V, 3.25-A step-down voltage converter with spread spectr

LM63635DNEVM evaluation module (EVM) helps designers evaluate the operation and performance of the LM636x5CAQDRRQ1 buck regulator. The LM636x5CAQDRRQ1 is a family of easy-to-use synchronous step-down DC/DC converters capable of driving up to 3.5-A of load current from an input voltage of 3.5-V to (...)
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