Charge-pump regulator with a fixed 2.5 V rail
The Analog Devices LTC3240EDC-2.5#TRMPBF is a charge-pump regulator that delivers a fixed 2.5 V output from an input range of 1.8 V to 5.5 V. It uses a step-up/step-down topology.
What the ratings mean on the bench
The 2.5 V output is fixed — no feedback divider needed, which saves two resistors and a feedback-node layout trace. The 150 mA rating is the maximum continuous output.
