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LMR50410

ACTIVE

SIMPLE SWITCHER 4-V to 36-V, 1-A synchronous step-down converter

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Data sheet

LMR50410

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4 Vin (max) (V) 36 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Synchronous Rectification Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 80 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4 Vin (max) (V) 36 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Synchronous Rectification Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 80 Duty cycle (max) (%) 98
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • Input voltage range: 4 V to 36 V
    • 1-A continuous output current
    • Minimum switching-on time: 60 ns
    • 700-kHz fixed switching frequency
    • Junction temperature range: –40°C to 150°C
    • 98% maximum duty cycle
    • Monotonic start-up with pre-biased output
    • Internal short circuit protection with hiccup mode
    • ±1% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23-6 package
  • Pin-to-pin compatible with LMR14010Aand TPS560430
  • Various options in pin-to-pin compatible package
    • PFM and forced PWM (FPWM) options
  • Create a custom design using the LMR50410 with the WEBENCH Power Designer
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • Input voltage range: 4 V to 36 V
    • 1-A continuous output current
    • Minimum switching-on time: 60 ns
    • 700-kHz fixed switching frequency
    • Junction temperature range: –40°C to 150°C
    • 98% maximum duty cycle
    • Monotonic start-up with pre-biased output
    • Internal short circuit protection with hiccup mode
    • ±1% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23-6 package
  • Pin-to-pin compatible with LMR14010Aand TPS560430
  • Various options in pin-to-pin compatible package
    • PFM and forced PWM (FPWM) options
  • Create a custom design using the LMR50410 with the WEBENCH Power Designer

The LMR50410 is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1-A load current. With a wide input range of 4 V to 36 V, the device is suitable for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR50410 operates at 700-kHz switching frequency to support use of relatively small inductors for an optimized solution size. It has an PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR50410 is available in SOT-23-6 package.

The LMR50410 is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1-A load current. With a wide input range of 4 V to 36 V, the device is suitable for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR50410 operates at 700-kHz switching frequency to support use of relatively small inductors for an optimized solution size. It has an PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR50410 is available in SOT-23-6 package.
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Technical documentation

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* Data sheet LMR50410 SIMPLE SWITCHER® 4-V to 36-V, 1-A Buck Converter in SOT-23-6 Package datasheet (Rev. A) PDF | HTML 13 Nov 2020
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Certificate LMR50410EVM EU RoHS Declaration of Conformity (DoC) 20 Nov 2020
Functional safety information LMR50410 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 20 Oct 2020
Application note Understanding and Simulation of Loop Stability Test for DC/DC Converters PDF | HTML 05 Oct 2020
EVM User's guide LMR50410EVM User's Guide 17 Oct 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMR50410EVM — 4-V to 36-V, 1-A synchronous step-down converter evaluation module

The LMR50410EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR50410 step-down converter. The board is set as a 3.3-V Vout. The board also has AC signal injection terminals for loop measurements.
User guide: PDF
Not available on TI.com
Simulation model

LMR50410X PSpice Transient Model

SLUM724.ZIP (87 KB) - PSpice Model
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Simulation model

LMR50410XF PSpice Transient Model

SLUM771.ZIP (257 KB) - PSpice Model
Download
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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