LMR50410YFQDBVRQ1

LMR50410-Q1 is a simple, easy-to-use wide input voltage synchronous buck converter capable of driving load currents up to 1A. The device features a wide input range of 4V to 36V, making it suitable for a variety of automotive applications requiring power regulation from unregulated sources. The LMR50410-Q1 operates at a switching frequency of 2.1MHz, enabling the use of relatively small inductors for an optimized solution size. It is available in a PFM version for high efficiency at light loads and an FPWM version for constant frequency operation with low output voltage ripple across the full load range. Soft-start and compensation circuits are implemented internally to minimize the number of external components required. The device features built-in protection functions, including cycle-by-cycle current limiting, discontinuous mode short-circuit protection, and thermal shutdown under excessive power dissipation conditions. The LMR50410-Q1 is available in a SOT-23-6 package.

Applications

• Body electronics and lighting
• Infotainment systems and instrument clusters
• ADAS
• General-purpose wide input voltage power supply

Key features

• AEC-Q100 qualified, Grade 1: -40°C to 125°C ambient operating temperature range
• Functional Safety documentation available to aid in functional safety system design, dedicated to harsh automotive applications
• Input voltage range: 4V to 36V
• 1A continuous output current
• Minimum on-time: 60ns
• 2.1MHz fixed switching frequency
• Junction temperature range: -40°C to 150°C
• 98% maximum duty cycle
• Monotonic startup with pre-biased output
• Internal short-circuit protection with hiccup mode
• ±1% tolerance voltage reference
• Precision enable pin
• Small and easy-to-use solution
• Integrated synchronous rectification
• Built-in compensation for ease of use
• SOT-23-6 package
• Pin-to-pin compatible with TPS560430-Q1
• Multiple options in pin-to-pin compatible packages
• PFM and forced PWM (FPWM) options
• 3.3V and 5V fixed output options
• Use LMR50410-Q1 with WEBENCH Power Designer to create a customized design