L7912 -12V TO220 Linear Voltage Regulator

L7912 Voltage Regulator – -12V Fixed Negative Linear Regulator IC

The L7912 Voltage Regulator is a fixed -12V linear voltage regulator designed for efficient power control in industrial, telecom, and embedded system applications. As a negative voltage regulator from the 79xx series, the L7912 is tailored for systems requiring a consistent -12V rail, often used alongside positive regulators to form dual-supply configurations in analog and signal processing circuits.

It supports input voltages up to -35V and delivers up to 1.5A output current, with internal current limiting and thermal shutdown for reliable, fault-tolerant operation. This regulator offers low output noise and tight load and line regulation, improving stability in sensitive power supply designs. The L7912 is packaged in a TO-220 form factor, simplifying integration into through-hole PCBs and enabling efficient heat dissipation during continuous operation.

Its robust construction and proven performance make the L7912 ideal for motor controllers, analog amplifiers, RS-232 interfaces, and regulated power rails in communication devices. With a wide operating temperature range and compliance with RoHS standards, the L7912 provides long-term reliability in demanding environments. Minimum order quantity starts at 30 pieces, making it a practical choice for volume manufacturing and procurement.

Key Specs Output Voltage: Fixed -12V Input Voltage Range: Up to -35V Output Current: Up to 1.5A Dropout Voltage: Typically 2V Load Regulation: 100mV (typ) Quiescent Current: 5 mA (typ) Thermal Shutdown: Yes Short-Circuit Protection: Yes Package: TO-220 Operating Temperature: -40°C to +125°C Applications: Negative voltage rails, power supplies, automation systems, analog circuits, embedded devices MOQ: 30 pieces Compliance: RoHS & Pb-Free