AP7351D-25W5-7

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

The AP7351D-25W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 2.5V output with a maximum current of 150mA. It operates within an input voltage range of 1.4V to 5.5V and features ultra-low quiescent current of 0.5µA and standby current of 0.02µA. The device includes an enable pin for power control, active output discharge, and ripple rejection up to 60dB at 1kHz. It is housed in a SOT25 package and supports an operating temperature range from -40°C to +85°C.

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

• Ultra-low quiescent and standby currents extend battery life in portable applications
• Integrated enable pin allows precise on/off control and shutdown mode management
• Active output discharge ensures the system starts from a known state upon enabling
• High output voltage accuracy maintains stability across varying load and temperature conditions

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

• Wearable Electronics
• Sensor Module for Internet-Of-Things (IOT)
• Wireless Communication Module
• Battery-Operated Device
• Image Sensor

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

Verify that the specific part number matches the required output voltage and package type before ordering. Confirm compliance with RoHS and halogen-free requirements if mandated by project specifications. Ensure the supply chain source provides original manufacturer documentation to validate authenticity. Check for any automotive qualification requirements if the application demands AEC-Q100 standards.

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

Select this component when low power consumption is critical for extending battery operational time. The integrated enable feature makes it suitable for systems requiring controlled power sequencing. Verify that the input voltage remains within the specified 1.4V to 5.5V range under all operating conditions. Consider the thermal resistance characteristics if high ambient temperatures are expected.

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

This device belongs to the AP7351D series of low dropout regulators designed for low-power handheld and wearable devices. The series offers various fixed output voltages and is available in both X2-DFN1010-4 and SOT25 packages. It utilizes a CMOS process to achieve high efficiency and low noise performance suitable for sensitive analog and RF subsystems.

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

AP7351D-25FS4-7B

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

What is the function of the EN pin?

The EN pin controls the operation of the regulator. Driving it high enables the regulator, while pulling it low puts the device into shutdown mode.

Does the AP7351D-25W5-7 include output discharge?

Yes, the device features an active output discharge resistor that pulls down the output voltage when the enable pin is low, ensuring a known startup state.