TL431 2.5V to 36V Adjustable Shunt Regulator
Regular price
Rs.25.00
Sale price
Rs.35.00
TL431
The TL431 is an adjustable precision shunt regulator providing a stable 2.5 V reference with a programmable output range from 2.5 V to 36 V. Its three-terminal design delivers low output noise, low dynamic output impedance (typically 0.2 Ω), and a wide operating sink current range, making it suitable for accurate voltage regulation in both linear and switching circuits.
The device supports sink currents from 1 mA to 100 mA and is available in multiple accuracy grades (B: 0.5%, A: 1%, standard: 2%) and temperature ranges (C, I, Q), allowing precise adjustment of output voltage using two external resistors. The TL431 is commonly used in SMPS, battery chargers, overvoltage protection, precision current limiters, and isolated feedback loops with optocouplers.
The TL431 operates over a temperature range of −40 °C to +125 °C depending on the variant, with multiple package options including TO-92, SOT-23, SOIC, and PDIP. Its characteristics make it suitable for industrial controls, automotive electronics, and instrumentation applications.
Key Specs
| Parameter | Value / Range |
|---|---|
| Reference voltage (VREF) | ≈ 2.5 V (programmable up to 36 V) |
| Adjustable output voltage range | 2.5 V to 36 V |
| Sink current | 1 mA to 100 mA |
| Dynamic output impedance | 0.2 Ω (typical) |
| Reference tolerance (25 °C) | B grade: 0.5%; A grade: 1%; Standard: 2% |
| Operating temperature range | TL43xxC: 0 °C to 70 °C; TL43xxI: −40 °C to +85 °C; TL43xxQ: −40 °C to +125 °C |
| Temperature drift | 6 mV typical (variant dependent) |
| Packages | TO-92, SOT-23, SOIC, PDIP, SOT-89 |
| Compliance | RoHS / Pb-Free |
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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