AP7176BMP-13

Overview

The AP7176BMP-13 is a 3.0A ultra low-dropout linear regulator manufactured by Diodes Incorporated in the MSOP-8EP package. It features an enable input and power-good output for power management sequencing. The device utilizes two supply inputs: VIN (1.2V to 3.65V) for current supply and VCNTL (3.0V to 5.5V) for control bias, enabling reduced dropout voltage and power dissipation. It delivers adjustable output voltage with 1.5% accuracy over load, line, and temperature ranges (-40°C to +85°C). Key electrical parameters include a typical dropout of 0.31V at 3A and internal protections such as thermal shutdown and current limiting.

Feature Summary

• Dual supply architecture separates power conversion from control bias to minimize dropout voltage and reduce overall power dissipation.
• Integrated enable pin and open-drain power-good output facilitate precise power sequencing for complex digital loads.
• Internal soft-start function controls output voltage rise time to limit inrush current during startup.
• Comprehensive protection mechanisms include thermal shutdown, current limiting, and short-circuit protection.

Applications

• FPGA and DSP power management solutions
• Notebooks, PCs, and netbooks
• Servers and motherboards
• Wireless communication equipment

Procurement Notes

Verify the specific ordering suffix 'MP' corresponds to the MSOP-8EP package configuration required for your design. Confirm that the component meets RoHS compliance standards if environmental regulations apply to your manufacturing process. Ensure the selected part number matches the exact tape and reel quantity specified by the manufacturer for automated assembly lines.

Selection Notes

Select this component when high continuous output current near 3A is required alongside minimal voltage drop. The dual-supply design is advantageous for applications needing independent control logic voltage versus main power rail. Verify that the application can accommodate the separate VCNTL bias supply requirement to fully utilize the regulator's performance characteristics.

Part Context

This component belongs to the AP7176B series of ultra low-dropout linear regulators. The series includes variants with different packaging options, such as SO-8EP and U-DFN3030-10, to suit various thermal and spatial constraints. All variants share the same core electrical specifications and functional block diagram, differing primarily in physical footprint and thermal resistance properties.

Replacement Considerations

AP7176BSP-13 (SO-8EP package)

FAQ

How does the dual-supply design affect dropout voltage?

By separating the control bias (VCNTL) from the power input (VIN), the regulator can achieve significantly lower dropout voltages compared to single-supply designs, especially under heavy load conditions.

What happens if the junction temperature exceeds 170°C?

Thermal shutdown protection activates, disabling the nMOS pass element. The device will cool down and initiate a new soft-start cycle once the temperature drops by approximately 50°C.