LMR50410-Q1

• AEC-Q100 qualified
  • Temperature grade 1: –40°C to 125°C ambient operating temperature range
• Functional Safety-Capable
  • Documentation available to aid functional safety system design
• Configured for rugged automotive applications
  • Input voltage range: 4 V to 36 V
  • 1-A continuous output current
  • Minimum switching-on time: 60 ns
  • 2.1-MHz 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 TPS560430-Q1
• Various options in pin-to-pin compatible package
  • PFM and forced PWM (FPWM) options
  • Fixed 3.3-V and 5.0-V output option
• Create a custom design using the LMR50410-Q1 with the WEBENCH Power Designer

The LMR50410-Q1 is a wide-V_IN, 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 automotive applications for power conditioning from an unregulated source.

The LMR50410-Q1 operates at 2.1-MHz 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-Q1 is available in SOT-23-6 package.