AP7347D-25W5-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AP7347D-25W5-7 is a low-dropout regulator manufactured by Diodes Incorporated, featuring a fixed 2.5V output voltage and a guaranteed maximum output current of 500mA. It operates within an input voltage range of 1.7V to 5.5V and maintains high accuracy with a VOUT tolerance of ±1%. The device incorporates a CMOS process, providing a ripple rejection ratio of 75dB at 1kHz and a low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is specified as low as 60µA. It includes thermal shutdown and short-circuit protection, packaged in SOT25 (Type A1) for surface mount applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Features a dedicated enable pin that allows the regulator to be turned on or off via logic level signals, facilitating power management control.
• Incorporates integrated circuit protection mechanisms including foldback short-circuit current limiting and thermal shutdown to safeguard against overcurrent and overheating conditions.
• Designed with a low on-resistance N-channel pass element and auto-discharge functionality to minimize power consumption during disabled states.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Noise-sensitive automotive equipment
• Portable and battery-powered electronic devices
• Desktops, notebooks, and ultrabooks
• Tablets and remote controls

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific package type and marking code when sourcing components. Confirm that the ordering suffix matches the required tape and reel packaging format. Ensure compatibility with RoHS compliance standards and verify that the component meets the intended operating temperature range requirements for the final assembly.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for designs requiring high power supply rejection ratios and low output noise in compact form factors. Consider the dropout voltage characteristics relative to the minimum input voltage and load current. Evaluate the thermal resistance parameters if the application involves significant power dissipation or limited PCB copper area for heat spreading.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AP7347D series of low-dropout regulators designed for high performance and low power consumption. The series utilizes a CMOS process technology to achieve low quiescent currents while maintaining stable operation across a wide input voltage range. It is distinct from automotive-compliant variants which are documented under separate datasheets.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

AP7347DQ-25W5-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

How does the Enable pin function?

The EN pin must be driven either high or low; it must not be left floating. Driving the pin high enables the regulator, while pulling it low activates the shutdown mode.

What is the recommended capacitor configuration?

A minimum 1μF ceramic capacitor is recommended for both the input (CIN) and output (COUT) pins to ensure stability and improve transient response.