AP4310AUMTR-AG1

Overview

The AP4310AUMTR-AG1 is a monolithic integrated circuit containing two operational amplifiers and a precision shunt voltage reference. It operates within a supply voltage range of 3V to 36V and features a fixed 2.5V output with ±0.4% tolerance. Each op amp draws 75µA at 5V, offers a unity gain bandwidth of 1MHz, and supports an output current of up to 40mA. The device functions reliably from -40°C to +105°C in an SO-8 package.

Feature Summary

• Integrates dual general-purpose operational amplifiers with a dedicated 2.5V precision shunt voltage reference on a single die.
• Features low power consumption with a typical supply current of 75µA per amplifier at a 5V supply voltage.
• Provides high precision control through a 0.5mV input offset voltage and a wide common-mode input voltage range extending to VCC-1.5V.
• Designed for switching power supply applications with a sink current capability ranging from 0.05mA to 80mA.

Applications

• Battery charger circuits
• Switching power supplies

Procurement Notes

Verify the specific suffix AG1 against official Diodes Incorporated documentation to confirm compliance with RoHS directives and Halogen-free status. Ensure the ordering code matches the required Tape & Reel packaging format for automated assembly processes. Cross-reference the datasheet revision to confirm all electrical characteristics align with your design requirements.

Selection Notes

Select this component when a combined solution for voltage regulation and signal amplification is required to reduce system complexity. The internal connection of Op Amp 1 to the voltage reference simplifies constant voltage control loops. Consider the 3V to 36V operating range and the 40mA output drive capability for load requirements.

Part Context

This part belongs to the AP4310A product line manufactured by Diodes Incorporated. It is designed as a specialized control solution for power converters, integrating analog control functions with a stable reference source. The device aims to lower system costs by consolidating multiple discrete components into a single surface-mount package.

Replacement Considerations

AP4310AM-G1

FAQ

How is Op Amp 1 configured internally?

Op Amp 1 has its non-inverting input internally connected to the output of the integrated 2.5V shunt regulator, making it suitable for voltage control applications.

What is the dynamic impedance of the voltage reference?

The typical dynamic impedance is 0.2Ω, measured with a cathode current ranging from 1mA to 80mA at frequencies below 1kHz.