LMR34206SC3QRNXTQ1

The LMR34206-Q1 regulator is an easy-to-use synchronous step-down DC/DC converter. The device features integrated high-side and low-side power MOSFETs, capable of delivering output current up to the specified value across a wide input voltage range of 4.2V to 42V. The LMR34206-Q1 employs a peak current mode control mechanism to deliver optimal efficiency and output voltage accuracy. A precision enable supports direct connection to wide input voltages or precise control of device startup and shutdown, providing flexibility. A power-good flag with built-in filtering and delay offers a true indication of system status, eliminating the need for an external supervisor. The LMR34206-Q1 uses a HotRod package to achieve low EMI, higher efficiency, and a minimal package-to-die ratio. The device requires very few external components, and its pin design enables simple PCB layout. The small solution size and feature set of the LMR34206-Q1 are designed to simplify implementation across a wide range of end equipment.

Applications

• ADAS camera module
• Head-up display
• Body control module
• General-purpose wide input voltage power supply

Key features

• AEC-Q100 qualified for automotive applications: Temperature Grade 1: -40°C to +125°C, TA
• Designed for automotive applications
• Junction temperature range: -40°C to +150°C
• Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection
• 0.2V dropout voltage (typical) at 0.6A load
• ±1.5% reference voltage tolerance
• 3.3V and 5V fixed output voltage options
• Scalable power supply compatible
• Pin-compatible with: LMR36015/06-Q1 (60V, 0.6A or 1.5A), LMR33620/30-Q1 (36V, 2A or 3A)
• 2.1MHz frequency option
• Reduced solution size and cost through integrated technology
• Small 2mm×3mm VQFN package (with wettable flanks)
• Minimal external components
• Low power dissipation across full load range
• Improved light-load efficiency in PFM mode
• Operating quiescent current as low as 24μA
• Optimized for ultra-low EMI requirements
• CISPR25 Class 5 compliant
• Hotrod package minimizes switching node ringing
• Parallel input paths minimize parasitic inductance
• Spread spectrum reduces peak radiated emissions