AP431SANTR-G1

The AP431S/AP431SH is a 3- terminal adjustable shunt regulator with guaranteed thermal stability over a full operation range. It features sharp turn- on characteristics, low- temperature coefficient and low output impedance, which makes it ideal substitute for Zener diode in applications such as switching power supply, charger and other adjustable regulators. The AP431S/AP431SH has the same electrical specifications as the industry standard 431 except that it features a low minimum cathode current for regulation. The typical value of 50μA makes the parts ideal for very low power dissipation applications. The output voltage of the AP431S/AP431SH can be set to any value between VREF (2.5V/2.495V) and the corresponding maximum cathode voltage (36V). The AP431S/AP431SH is offered in two grade initial voltage tolerance at +25°C 0.5% and 1%. This IC is available in 3 packages: TO- 92 (Ammo Packing), SOT23 and SOT89.

Applications

• Chargers
• Voltage adapters
• Switching power supplies
• Graphic cards
• Precision voltage references
• Shunt Regulator
• High Current Shunt Regulator
• Current Source or Current Limit

Key features

• Low Minimum Cathode Current for Regulation: 50pA (typ.) 100μA (max.)
• Programmable Precise Output Voltage from 2.5V/2.495V to 36V
• High Stability Under Capacitive Load
• Low Deviation of Reference Voltage Over Full Temperature Range: 11mV typical - 40°C to +125°C
• Sink Current Capacity from 100μA to 100mA
• Low Dynamic Impedance: 0.1Ω (typ.)
• Wide Operating Temperature Range: - 40°C to +125°C
• Totally Lead- Free & Fully RoHS Compliant
• Halogen and Antimony Free. "Green" Device