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LM63610-Q1

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3.5-V to 36-V, 1.0-A step-down voltage converter with spread spectrum

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Data sheet

LM63610-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 20 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 23 Duty cycle (max) (%) 99 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 20 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 23 Duty cycle (max) (%) 99 Type Converter
HTSSOP (PWP) 16 32 mm² 5 x 6.4 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 performance Pseudo-random spread spectrum Compatible with CISPR 25
    • Low operating quiescent current of 23µA
    • Junction temperature range –40°C to +150°C
  • High design flexibility
    • Pin selectable VOUT: 3.3V, 5V, adjustable 1V to 20V
    • Pin compatible with LM63615, LM63625, LM63635 (1.5A, 2.5A, and 3.25A)
    • Pin selectable frequency: 400kHz, 2.1MHz, adjustable 250kHz to 2200kHz
    • Pin selectable FPWM, AUTO, sync modes
    • TSSOP: thermally-enhanced package
    • WSON: for space-constrained applications
  • Small design size
    • Highly integrated design
    • Low 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 performance Pseudo-random spread spectrum Compatible with CISPR 25
    • Low operating quiescent current of 23µA
    • Junction temperature range –40°C to +150°C
  • High design flexibility
    • Pin selectable VOUT: 3.3V, 5V, adjustable 1V to 20V
    • Pin compatible with LM63615, LM63625, LM63635 (1.5A, 2.5A, and 3.25A)
    • Pin selectable frequency: 400kHz, 2.1MHz, adjustable 250kHz to 2200kHz
    • Pin selectable FPWM, AUTO, sync modes
    • TSSOP: thermally-enhanced package
    • WSON: for space-constrained applications
  • Small design size
    • Highly integrated design
    • Low component count

The LM63610-Q1 regulators are a family of easy-to-use, synchronous, step-down DC/DC converters designed for rugged automotive applications. The LM63610-Q1 can drive up to 1A 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 designs 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 LM63610-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™ integrated circuit package, and the WSON 12-pin power package. Please contact Texas Instruments for availability of the WSON package.

The LM63610-Q1 regulators are a family of easy-to-use, synchronous, step-down DC/DC converters designed for rugged automotive applications. The LM63610-Q1 can drive up to 1A 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 designs 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 LM63610-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™ integrated circuit package, and the WSON 12-pin power package. Please contact Texas Instruments for availability of the WSON package.
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* Data sheet LM63610-Q1 3.5V to 36V, 1A, Automotive, Step-Down Voltage Converter datasheet (Rev. B) PDF | HTML 16 May 2025
Functional safety information LM636xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. E) PDF | HTML 18 Mar 2024
Application note Inverting Buck-Boost Application for the LM63615-Q1 PDF | HTML 12 Mar 2023

Design & development

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Evaluation board

LM63615QDRREVM — Evaluation module for 3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum

The LM63615QDRREVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM63625-Q1 synchronous step-down converter.
User guide: PDF | HTML
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SNVC239 — LM636x3Q Component Calculator

Supported products & hardware

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Products
AC/DC & DC/DC converters (integrated FET)
LM63610-Q1 — 3.5-V to 36-V, 1.0-A step-down voltage converter with spread spectrum LM63615-Q1 — 3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum LM63625-Q1 — 3.5-V to 36-V, 2.5-A step-down voltage converter with spread spectrum LM63635-Q1 — Automotive, 3.5V to 36V, 3.25A step-down voltage converter with spread spectrum
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HTSSOP (PWP) 16 Ultra Librarian
WSON (DRR) 12 Ultra Librarian
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