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TL431 Adjustable Shunt Regulator
Three-terminal, adjustable precision shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges from TI
Texas Instruments' TL431 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between VREF, approximately 2.5 V and 36 V, with two external resistors. These devices have a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.
Features
- Reference voltage tolerance at 25°C
- 0.5% (B grade)
- 1% (A grade)
- 2% (standard grade)
- Adjustable output voltage: VREF to 36 V
- Operation from -40°C to +125°C
- Typical temperature drift (TL431B)
- 6 mV (C temp)
- 14 mV (I temp, Q temp)
- Low output noise
- 0.2 Ω typical output impedance
- Sink-current capability: 1 mA to 100 mA
TL431 Adjustable Shunt Regulator
| Image | Manufacturer Part Number | Description | Noise - 0.1Hz to 10Hz | Available Quantity | Price | ||
|---|---|---|---|---|---|---|---|
 |  | TL431ACP | IC VREF SHUNT ADJ 1% 8DIP | - | 2266 - Immediate 58417 - Marketplace | $0.34 | View Details |
|  | TL431AILPR | IC VREF SHUNT ADJ 1% TO92-3 | - | 5028 - Immediate | $0.18 | View Details |
|  | TL431AILP | IC VREF SHUNT ADJ 1% TO92-3 | - | 814 - Immediate | $0.71 | View Details |
| | TL431AIP | IC VREF SHUNT ADJ 1% 8DIP | - | 523 - Immediate 6031 - Marketplace | $0.25 | View Details |
|  | TL431CDBVR | IC VREF SHUNT ADJ 2.2% SOT23-5 | - | 13911 - Immediate | $0.16 | View Details |
| | TL431CDBVR | IC VREF SHUNT ADJ 2.2% SOT23-5 | - | 13911 - Immediate | $0.16 | View Details |
| | TL431CDBVR | IC VREF SHUNT ADJ 2.2% SOT23-5 | - | 13911 - Immediate | $0.16 | View Details |
| | TL431IDBVR | IC VREF SHUNT ADJ 2.2% SOT23-5 | - | 3723 - Immediate | $0.19 | View Details |
| | TL431IDBVR | IC VREF SHUNT ADJ 2.2% SOT23-5 | - | 3723 - Immediate | $0.19 | View Details |
| | TL431IDBVR | IC VREF SHUNT ADJ 2.2% SOT23-5 | - | 3723 - Immediate | $0.19 | View Details |
Published: 2015-03-28
Austria