When connected as shown, the standard “three leg” will begin to conduct as INPUT current is brought from zero and Vout approaches the programmed setpoint voltage Vset, causing Vadj to approach -1.25V.

Surprising facts, like “old fangled” 3-leg linear regulators (LM317, LM337, LM350, et al.) can be used in shunt regulator topologies can sometimes inspire “new fangled” circuit designs. Figure 1 shows ...

This file type includes high-resolution graphics and schematics when applicable. Did you know that your shunt regulator is in danger? Don’t worry—the fix is free (and free is good). A feedback circuit ...

The MAX8515A and MAX8515 debut as the industry's smallest sub-1V shunt references for optical networks and modules. They’re also claimed to simplify voltage feedback and over-voltage protection ...