onsemi LM431SA
The LM431SA / LM431SB / LM431SC are three-terminal the output adjustable regulators with thermal stability over operating temperature range. The output voltage can be set any value between VREF (approximately 2.5 V) and 36 V with two external resistors. These devices have a typical dynamic output impedance of 0.2 W.DESCRIPTION
Active output circuit provides a sharp turn-on characteristic, making these devices excellent replacement for zener diodes in many applications.FEATURES
● Programmable Output Voltage to 36 V● Low Dynamic Output Impedance: 0.2 W (Typical)
● Sink Current Capability: 1.0 to 100 mA
● Equivalent Full-Range Temperature Coefficient of 50 ppm/°C (Typical)
● Temperature Compensated for Operation Over Full Rated Operating Temperature Range
● Low Output Noise Voltage
● Fast Turn-on Response
● These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant 1 SOT-89 CASE 528AH 3 12 SOT-23FL CASE 318AB 3 12 SOT-23 CASE 318BM 1. Ref 2. Anode 3. Cathode 1. Cathode 2. Ref 3. Anode M32 1. Ref 2. Cathode 3. Anode M3 1. Cathode 2. Ref 3. Anode ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. NOTE: Some of the devices on this data sheet have been DISCONTINUED. Please refer to the table on page 9. BLOCK DIAGRAM Figure 1.