YACS SMD Low-Voltage Adjustable Precision Shunt Regulator || YACS Transistor SMD || YACU Transistor.

Description :

The TLV431ACDBZRG4 device is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 6 V with two external resistors (see the Parameter Measurement Information section). These devices operate from a lower voltage (1.24 V) than the widely used TLV431ACDBZRG4 (YACS) and TLV431ACDBZR (YACU) shunt-regulator references.

When used with an optocoupler, the TLV431ACDBZRG4 (YACS) device is an ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turnon characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

Features :

• Low-Voltage Operation, VREF = 1.24 V
• Adjustable Output Voltage, VO = VREF to 6 V
• Reference Voltage Tolerances at 25°C – 0.5% for TLV431B – 1% for TLV431A – 1.5% for TLV431
• Typical Temperature Drift   – 4 mV (0°C to 70°C)       – 6 mV (–40°C to 85°C)       – 11 mV (–40°C to 125°C)
• Low Operational Cathode Current, 80 µA Typical
• 0.25-Ω Typical Output Impedance
• Ultra-Small SC-70 Package Offers 40% Smaller
• Footprint Than SOT-23-3
• See TLVH431 and TLVH432 for:    – Wider VKA (1.24 V to 18 V) and IK (80 mA)      – Additional SOT-89 Package     – Multiple Pinouts for SOT-23-3 and SOT-89    Packages
• On Products Compliant to MIL-PRF-38535,
• All Parameters Are Tested Unless Otherwise   Noted. On All Other Products, Production   Processing Does Not Necessarily Include Testing  of All Parameters.

Applications :

• Adjustable Voltage and Current Referencing
• Secondary Side Regulation in Flyback SMPSs
• Zener Replacement
• Voltage Monitoring
• Comparator With Integrated Reference

Pin Configuration and Functions :