A Shunt-LDO for the Electron Ion Collider in a 110nm CMOS process

Journal article

In this work we report on the development of a Shunt LDO (SLDO) for use in the serial powering chain of staves and discs at the Electron Ion Collider (EIC). The device is designed in a 110nm CMOS technology and can supply up to 1 A at a voltage of 1.1 to 1.4 V. Simulated PSRR at DC is -56 dB, and efficiency is above 70 %. Safety features such as load overcurrent protection and the ability to shunt the current of failed parallel SLDOs are included. A first prototype has been submitted. In this work we will report on the design of the device, and on simulation results of the prototype.

Authors: Sedgwick, I; Krieger, A; Wastie, R

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: IOP Publishing
• Journal: Journal of Instrumentation
• Volume: 21
• Issue: 03
• Article number: C03031
• Publication date: 2026-03-18
• Acceptance date: 2026-01-27
• DOI: 10.1088/1748-0221/21/03/c03031
• EISSN: 1748-0221
• Language: English
• Keywords: Instrumentation for particle accelerators and storage rings - low energy (linear accelerators, cyclotrons, electrostatic accelerators); Particle tracking detectors (Solid-state detectors); Analogue electronic circuits