Forward converter controller with wide 6V to 100V input
The LT8310HFE#PBF is a synchronous MOSFET driver from Analog Devices, designed specifically for forward converter topologies. It accepts a supply voltage from 6V to 100V, covering the common telecom and industrial bus voltages without an external regulator. The driver draws 3.8 mA supply current, which is the quiescent overhead for the control and gate-drive circuitry. This figure matters for the bias supply budget in isolated designs — the 3.8 mA load must be within the capability of the auxiliary winding or bootstrap supply.
The part is ROHS3 compliant.
Package and footprint — 20-TSSOP with exposed pad
The 20-TSSOP-EP package (0.173-inch body width, 4.40 mm) has 16 leads and an exposed pad on the underside. The pad is the primary thermal path — the PCB layout must include a matching copper area with thermal vias to the ground plane. The Tube shipping format is typical for engineering samples and low-volume builds; high-volume reels are available as the LT8310EFE#TRPBF variant.