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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 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 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 Vout (min) (V) 1 Vout (max) (V) 20 Iq (typ) (µA) 23 Duty cycle (max) (%) 99
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 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 Vout (min) (V) 1 Vout (max) (V) 20 Iq (typ) (µA) 23 Duty cycle (max) (%) 99
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: 3.5 V to 36 V
    • Short minimum on-time of 50 ns
    • Good performance Pseudo-random spread spectrum Compatible with CISPR 25
    • Low operating quiescent current of 23 µA
    • Junction temperature range –40°C to +150°C
  • High design flexibility
    • Pin selectable VOUT: 3.3 V, 5 V, adjustable 1 V to 20 V
    • Pin compatible with LM63615/LM63625/LM63635 (1.5 A, or 2.5 A, and 3.25 A)
    • Pin selectable frequency: 400 kHz, 2.1 MHz, adjustable 250 kHz to 2200 kHz
    • Pin selectable FPWM, AUTO, sync modes
    • TSSOP: Thermally-enhanced package
    • WSON: For space-constrained applications
  • Small solution size
    • Highly integrated solution
    • 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: 3.5 V to 36 V
    • Short minimum on-time of 50 ns
    • Good performance Pseudo-random spread spectrum Compatible with CISPR 25
    • Low operating quiescent current of 23 µA
    • Junction temperature range –40°C to +150°C
  • High design flexibility
    • Pin selectable VOUT: 3.3 V, 5 V, adjustable 1 V to 20 V
    • Pin compatible with LM63615/LM63625/LM63635 (1.5 A, or 2.5 A, and 3.25 A)
    • Pin selectable frequency: 400 kHz, 2.1 MHz, adjustable 250 kHz to 2200 kHz
    • Pin selectable FPWM, AUTO, sync modes
    • TSSOP: Thermally-enhanced package
    • WSON: For space-constrained applications
  • Small solution size
    • Highly integrated solution
    • 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 1 A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution 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 LM63610-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™, 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 1 A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution 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 LM63610-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™, and the WSON 12-pin power package. Please contact Texas Instruments for availability of the WSON package.
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Type Title Date
* Data sheet LM63610-Q1 3.5-V to 36-V, 1-A, Automotive Step-down Voltage Converter datasheet (Rev. A) PDF | HTML 27 Jul 2021
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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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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