AP432AYG-13R

Overview

The AP432AYG-13R is an adjustable precision shunt voltage reference manufactured by Diodes Incorporated. It operates within a supply voltage range of 2.5V to 20V and provides an adjustable output voltage from 1.24V to 20V. The device features a typical initial accuracy of 1% and a temperature coefficient of 30 ppm/°C. It supports a maximum shunt current of 200mA and maintains a low dynamic output impedance of 0.2Ω. The component functions across an extended commercial temperature range from -20°C to +85°C and is housed in a SOT-89-3 package.

Feature Summary

• Adjustable output voltage capability spanning from 1.24V up to 20V for flexible circuit design
• Low dynamic output impedance of 0.2Ω ensuring stable regulation under varying load conditions
• Fast turn-on response characteristics suitable for applications requiring rapid startup times
• Extended commercial temperature operation range supporting reliable performance in diverse environments

Applications

• Programmable power supplies requiring precise voltage regulation
• Battery chargers needing accurate current limiting references
• DC-to-DC converters utilizing internal feedback loop stabilization
• Portable equipment demanding compact voltage reference solutions

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging configuration as per manufacturer documentation. Confirm RoHS compliance status through official datasheets or environmental reports. Check for any End-of-Life notifications or Product Change Notifications that may affect long-term availability. Ensure the SOT-89-3 package footprint matches your PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when an adjustable shunt regulator with high accuracy is required. The 1% initial tolerance suits applications needing tight voltage control without external trimming. Consider the 200mA current capacity for driving moderate loads directly. The extended temperature range makes it suitable for industrial or automotive-adjacent commercial applications where standard grades may fail.

Part Context

This part belongs to the AP432 family of adjustable precision shunt regulators from Diodes Incorporated. It serves as a three-terminal reference device, functionally similar to Zener diodes but with superior stability and adjustability. The AP432 series is designed to replace fixed voltage references in circuits requiring programmable output levels, offering a cost-effective solution for power management ICs.

Replacement Considerations

Direct substitutes include the AP432A series variants which share identical electrical specifications. Other compatible parts from different manufacturers must match the 20V max input, 200mA current, and SOT-89-3 package constraints. Verify pinout compatibility, specifically Anode, Cathode, and Reference terminal assignments, to ensure seamless integration into existing designs.