| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,500 pcs
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2500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
76 pcs
|
76 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Tape & Reel |
The TL431LIBQDBZR from Texas Instruments is a 3-terminal adjustable shunt regulator designed for stable thermal performance across automotive, commercial, and military temperature ranges. Its output voltage can be precisely set to any value between Vref (approximately 2.495V) and 36V using two external resistors.
Key electrical characteristics include a typical output impedance of 0.3Ω and a reference voltage tolerance of 0.5% for the B grade at 25°C. The device operates within a temperature range of -40°C to 125°C. It features optimized reference input current and deviation, enabling high system accuracy and low leakage current.
This shunt regulator serves as an excellent alternative to Zener diodes in applications such as on-board regulation, adjustable power supplies, and switching power supplies due to its sharp power-on characteristic. It is supplied in a compact SOT-23 surface-mount package, suitable for various electronic designs.
The TL431LIBQDBZR is pin-compatible with the industry-standard TL431, offering improved performance for Iref and I(dev). It is available in different grades, including the B grade with 0.5% initial tolerance and the A grade with 1% initial tolerance.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.09 | $0.09 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The output voltage is adjustable from 2.495V to 36V.
The reference voltage tolerance is 0.5% for B grade and 1% for A grade at 25°C.
The operating temperature range is -40°C to 125°C.
The package is SOT-23 surface mount.
The maximum temperature drift is 10mV for C temperature, 17mV for I temperature, and 27mV for Q temperature.
The output impedance is 0.3Ω typical.
The maximum sink current is 15mA (under IKA condition).
