L7912 –12V Negative Voltage Regulator IC
Regular price
Rs.45.00
Sale price
Rs.50.00
L7912
The L7912 Voltage Regulator is a robust fixed –12 V linear regulator engineered to deliver stable, reliable negative rail power for demanding industrial, telecom, and embedded‑system applications. Built to meet the high expectations of modern power‑electronics design, it excels in dual‑supply circuits, analog signal systems, motor controllers, RS‑232 interfaces, communication devices, and other equipment needing a dependable –12 V supply. Thanks to its solid internal protection mechanisms, consistent regulation, and TO‑220 package for effective heat dissipation, L7912 stands out as a go‑to solution when performance and durability are non‑negotiable.
This regulator thrives where efficiency, stability and reliability matter. It supports input voltages down to –35 V and safely provides up to 1.5 A of output current — sufficient for many medium‑power power supply rails. Its design incorporates thermal shutdown and current‑limiting safeguards, so even under stress or fault conditions, the regulator remains protected. The result is a dependable, low‑noise –12 V output with tight line and load regulation, ensuring stable performance for sensitive circuits, such as analog amplifiers or precision signal systems. For manufacturers and volume producers, L7912’s consistency and compliance with industry‑standard packaging make it an ideal component for integrated designs.
Moreover, L7912 delivers long-term reliability in industrial or commercial environments. Its TO‑220 form factor enables easy PCB integration and effective thermal management — essential for continuous operation. Thanks to its wide operating temperature range and built‑in safety features, L7912 provides a stable negative rail under demanding conditions, making it ideal for power supplies, automation systems, and embedded devices where long-term durability and consistent performance are essential.
For more detailed information, please refer to the STMicroelectronics datasheet: L7912 datasheet PDF
Key Specs
| Parameter | Value |
|---|---|
| Output Voltage | –12 V (fixed) |
| Maximum Output Current | 1.5 A |
| Maximum Input Voltage | –35 V |
| Dropout Voltage (typical @ 1 A) | ≈ 1.1 V |
| Line Regulation | ≤ 240 mV (for –14.5 V to –30 V input, at 25 °C) |
| Load Regulation | ≤ 240 mV (for 5 mA to 1.5 A load, at 25 °C) |
| Quiescent Current | ~ 3 mA |
| Output Noise Voltage | ~ 200–300 µV (10 Hz–100 kHz) |
| Ripple Rejection (PSRR) | ~ 60 dB (at 120 Hz) |
| Package | TO‑220 (through‑hole) |
| Protection | Thermal shutdown, short‑circuit / current limiting, safe‑area protection |
| Typical Operating Temperature Range | 0 °C to 125 °C |
We dispatch all orders through Leopard Courier and TCS, while bulk or heavy shipments are sent via cargo (bilty) for safer handling and better rates. Standard delivery time is 2–3 working days for both courier and cargo deliveries, depending on your location. Orders are dispatched within 24 hours after payment confirmation, and the tracking number is shared on WhatsApp once shipped. Shipping charges depend on parcel weight and destination, and may be waived for bulk or corporate orders. Please ensure your contact details and address are accurate to avoid delays. For urgent delivery or specific shipping requirements, contact us directly on WhatsApp at 0303 56888 44.
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