Half-bridge PWM controller for isolated 48 V / 72 V bus converters
The LM5035ASQ is a voltage-mode half-bridge PWM controller for step-up/step-down conversion. It integrates synchronous rectification drive and clock-sync capability. Supply range is 13 V to 105 V; switching frequency is pin-selectable between 200 kHz and 500 kHz.
Synchronous rectification and clock sync
Built-in synchronous rectification drive replaces Schottky catch diodes with MOSFETs. Clock sync lets multiple LM5035ASQ units share a common switching frequency.
RoHS status and lifecycle
The LM5035ASQ is listed as Active in production — no end-of-life notice, no last-time-buy window. It is RoHS non-compliant, which means it cannot be used in assemblies requiring RoHS exemption-free compliance. This is a lead-bearing finish; verify your exemption status before placing it on a RoHS-restricted BOM. The active status and non-RoHS finish together suggest this part is aimed at industrial, military, or high-reliability applications where lead-exempt solder is still accepted.
