LMR36502F3RPER

The LMR3650x is the smallest 65-V, 150-mA, 100-mA synchronous step-down DC/DC converter in 4 mm² HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and supports fixed, 3.3 V, 5 V and other adjustable output voltages. The LMR3650x uses the peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR3650x with the right resistor selection from the RT pin to ground can be externally programmed to any desired switching frequency of operation over a wide range from 200 kHz to 2.2 MHz. The precision EN/UVLO feature allows precise control of the device during the start-up and shutdown. The PGOOD flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external voltage supervisor. The compact solution size and rich feature set of LMR3650x simplifies implementation for a wide range of industrial applications.

Applications

• Factory automation: field transmitters and process sensors
• Building automation: HVAC and fire safety notification and detectors
• Appliances: garden and power tools
• Portable electronics: headphones and earbuds

Key features

• Functional Safety-Capable Documentation available to aid functional safety system design
• Designed for rugged industrial applications:
• Junction temperature range -40°C to +150°C
• Input transient protection up to 70 V
• Wide input voltage range: 3.0 V (falling threshold) to 65 V
• Minimized switch node ringing to reduce EMI
• Adjustable and fixed output 3.3-V and 5-V voltage options available
• Suited for scalable industrial power supplies:
• Pin compatible with LMR36503 (65 V, 300 mA) and LMR36506 (65 V, 600 mA)
• Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variant
• Minimized solution size and cost:
• Ultra-small, 2-mm x 2-mm HotRod package