TLV431

TLV431 1.24V COST EFFECTIVE SHUNT REGULATOR Description The TLV431 is a three-terminal, adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 20mA. The output voltage may be set to any chosen voltage between 1.24V and 18V by selection of two external divider resistors. The TLV431 can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. The TLV431 is available in three grades with initial tolerances of 1%, 0.5%, and 0.2% for the A, B, and T grades respectively. Pin Assignments TLV431_H6 (SC70-6 [SOT363]) CATHODE 1 6 ANODE N/C‡ 2 5 NC‡ REF 3 4 NC (Top View) Features  Low-Voltage Operation VREF = 1.24V  Temperature Range -40°C to +125°C  Reference Voltage Tolerance at +25°C  0.2% TLV431T  0.5% TLV431B  1% TLV431A  Typical Temperature Drift  4mV (0 to +70°C)  6mV (-40°C to +85°C)  11mV (-40°C to +125°C)  80µA Minimum Cathode Current  0.25Ω Typical Output Impedance  Adjustable Output Voltage VREF to 18V  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  An automotive-compliant part is available under separate datasheet (TLV431Q) TLV431_F (SOT23) REF 1 3 ANODE CATHODE 2 (Top View) TLV431_E5 (SOT25) N/C 1 5 ANODE N/C‡ 2 CATHODE 3 4 REF (Top View) ‡ Pin should be left floating or connect to anode Notes: 1. No purposely added lead. Fully EU Directive 2002/95...