AP7201-1010FMG-7

Overview

The AP7201-1010FMG-7 is a dual low-dropout linear regulator manufactured by Diodes Incorporated. It operates from an input voltage range of 1.9V to 5.5V and provides two independent output channels, each delivering up to 150mA. The device features fixed output voltages of 1.0V for both Output 1 and Output 2. Key electrical characteristics include a typical quiescent current of 25µA, dropout voltage of 100mV at 100mA load, and high power supply rejection ratio of 78dB at 1kHz. It incorporates thermal shutdown and fold-back current limit protections.

Feature Summary

• Dual independent output channels with individual logic-compatible enable/shutdown control inputs
• Integrated fold-back current limit and thermal shutdown protection mechanisms
• Compatible with low ESR ceramic capacitors for improved stability and cost reduction
• Fast transient response with built-in phase compensation

Applications

• Bluetooth Headsets
• Cell Phones
• Digital Still Cameras
• Smart Phones and PDA
• GPS
• MP3/MP4
• PMP

Procurement Notes

Verify the specific output voltage configuration matches the design requirements, as the AP7201 series offers various fixed voltage combinations. Confirm the package type DFN2018-6 (USP-6B) aligns with the PCB footprint. Ensure the RoHS compliant and lead-free finish specifications meet environmental standards. Check for any custom laser trimming options if non-standard voltage steps are needed.

Selection Notes

Select this component when dual independent regulated rails are required from a single wide-range input source. The low quiescent current makes it suitable for battery-powered portable devices. Verify that the thermal dissipation capabilities of the DFN2018-6 package are sufficient for the expected load conditions and ambient temperature. Consider the fast transient response for applications requiring rapid load changes.

Part Context

The AP7201 series belongs to Diodes Incorporated's portfolio of dual low-dropout linear regulators designed for portable electronics. It shares the same core architecture and package style with variants like AP7201-1818FMG-7 and AP7201-2828FMG-7, differing primarily in the fixed output voltage settings for each channel. This allows designers to standardize on a single package while adjusting voltage outputs via part selection.

Replacement Considerations

AP7201-1818FMG-7: Dual 1.8V outputs. AP7201-2828FMG-7: Dual 2.8V outputs. AP7201-1828FMG-7: Output 1 at 1.8V, Output 2 at 2.8V. These parts share identical pinouts, packages, and general electrical characteristics but provide different fixed output voltage configurations.

FAQ

How does the enable function operate?

Each channel has an independent active-high enable input. Pulling the EN pin high turns the output on, while pulling it low shuts it down, reducing power consumption.

What protection features are included?

The device includes fold-back current limit protection, short-circuit protection, and thermal shutdown protection to prevent damage under fault conditions.

Is external compensation required?

No, the AP7201 includes built-in phase compensation, allowing it to be stable with minimal external components, specifically low ESR ceramic capacitors.