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LMR33610

ACTIVE

SIMPLE SWITCHER® 3.8-V to 36-V, 1-A synchronous step-down converter in SOIC-8 package

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Data sheet

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LMR50410 ACTIVE SIMPLE SWITCHER 4-V to 36-V, 1-A synchronous step-down converter SOT23 packaging, FPWM and PFM option.

LMR33610

ACTIVE
Data sheet Order now

Product details

Rating Catalog 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) 3.8 Vin (max) (V) 36 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1400 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 24 Iq (typ) (µA) 24 Duty cycle (max) (%) 98
Rating Catalog 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) 3.8 Vin (max) (V) 36 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1400 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 24 Iq (typ) (µA) 24 Duty cycle (max) (%) 98
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Configured for rugged industrial applications
    • Input voltage range: 3.8 V to 36 V
    • Output voltage range: 1 V to 24 V
    • Peak-current mode control
    • Junction temperature range: –40°C to +125°C
    • Ease of use SOIC package
  • Well-suited for scalable industrial power supplies
    • Pin compatible with:
    • 400-kHz and 1.4-MHz frequency
    • Integrated compensation helps reduce solution size, cost, and design complexity
  • High-efficiency solution
    • Peak efficiency > 95%
    • Low shutdown quiescent current of 5 µA
    • Low operating quiescent current of 25 µA
  • Flexible system interface
    • Power-good flag and precision enable
  • Create a custom design using the LMR33610 with the WEBENCH Power Designer
  • Configured for rugged industrial applications
    • Input voltage range: 3.8 V to 36 V
    • Output voltage range: 1 V to 24 V
    • Peak-current mode control
    • Junction temperature range: –40°C to +125°C
    • Ease of use SOIC package
  • Well-suited for scalable industrial power supplies
    • Pin compatible with:
    • 400-kHz and 1.4-MHz frequency
    • Integrated compensation helps reduce solution size, cost, and design complexity
  • High-efficiency solution
    • Peak efficiency > 95%
    • Low shutdown quiescent current of 5 µA
    • Low operating quiescent current of 25 µA
  • Flexible system interface
    • Power-good flag and precision enable
  • Create a custom design using the LMR33610 with the WEBENCH Power Designer

The LMR33610 SIMPLE SWITCHER regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LMR33610 drives up to 1 A of load current from an input of up to 36 V. The LMR33610 provides high light-load efficiency and output accuracy. Features such as a power-good flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. The LMR33610 automatically folds back frequency at light load to improve efficiency. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. Integration and internal compensation eliminates many external components and provides a pinout designed for a simple PCB layout. The feature set of the device is designed to simplify implementation for a wide range of end equipment. The LMR33610 is pin-to-pin compatible with the LMR33620, LMR33630, LMR33640 (36 V, 2 A,3 A, 4 A), LMR36510 (65 V, 1 A), and LMR36520 (65 V, 2 A), completing the family of scalable SIMPLE SWITCHER power supplies. This minimizes the cost and effort associated with board layout modifications. The LMR33610 is available in an 8-pin HSOIC package.

The LMR33610 SIMPLE SWITCHER regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LMR33610 drives up to 1 A of load current from an input of up to 36 V. The LMR33610 provides high light-load efficiency and output accuracy. Features such as a power-good flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. The LMR33610 automatically folds back frequency at light load to improve efficiency. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. Integration and internal compensation eliminates many external components and provides a pinout designed for a simple PCB layout. The feature set of the device is designed to simplify implementation for a wide range of end equipment. The LMR33610 is pin-to-pin compatible with the LMR33620, LMR33630, LMR33640 (36 V, 2 A,3 A, 4 A), LMR36510 (65 V, 1 A), and LMR36520 (65 V, 2 A), completing the family of scalable SIMPLE SWITCHER power supplies. This minimizes the cost and effort associated with board layout modifications. The LMR33610 is available in an 8-pin HSOIC package.
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Technical documentation

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Type Title Date
* Data sheet LMR33610 SIMPLE SWITCHER 3.8-V to 36-V, 1-A Synchronous Step-Down Converter datasheet (Rev. A) PDF | HTML 24 Jun 2022
Functional safety information LMR336x0 Functional Safety, FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 20 Mar 2024
Technical article 3 tips when designing a power stage for servo and AC drives PDF | HTML 20 Nov 2019
Technical article How to increase system reliability and simplify design using DC/DC converters PDF | HTML 13 Jun 2016
Technical article Advantages of leaded packages in robust industrial designs PDF | HTML 08 Mar 2016

Design & development

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Simulation model

LMR33640A PSpice Unencrypted Transient Model

SNVMBV0.ZIP (175 KB) - PSpice Model
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Simulation model

LMR33640D PSpice Unencrypted Transient Model

SNVMBV1.ZIP (172 KB) - PSpice Model
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