AP7351D-27W5-7

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

The AP7351D-27W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal output voltage of 2.7V. It operates within an input voltage range of 1.4V to 5.5V and guarantees an output current of 150mA. The device features ultra-low quiescent current of 0.5µA and standby current of 0.02µA. Output voltage accuracy is ±1%. It includes an enable pin for power control and active output discharge. The component is housed in an SOT-25 package.

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

• Ultra-low quiescent and standby currents designed to extend battery life in portable devices
• Integrated enable pin allows precise power management and shutdown control
• High output voltage accuracy with integrated resistor network for fixed versions
• Active output discharge capability ensures rapid voltage decay upon shutdown

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

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

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

Verify the specific ordering suffix W5 confirms the SOT-25 package type and tape-and-reel packaging configuration. Confirm that the -27 designation matches the required 2.7V fixed output voltage. Ensure compliance with RoHS and halogen-free requirements if specified for the target assembly process. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and revision status before procurement.

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

Select this component when designing low-power systems requiring a stable 2.7V rail from a single-cell lithium or alkaline battery source. The wide input voltage range accommodates varying battery states. Consider the SOT-25 package for space-constrained PCB layouts. Evaluate thermal dissipation capabilities based on the expected load current and ambient temperature conditions to ensure operation within recommended junction temperature limits.

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

This device belongs to the AP7351D series of low dropout regulators from Diodes Incorporated. The series offers various fixed output voltages ranging from 0.8V to 4.5V. The AP7351D family is characterized by CMOS technology, high ripple rejection, and compact packaging options including X2-DFN1010-4 and SOT-25. It targets applications demanding minimal ground current and extended operational time between battery replacements.

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

AP7351D-30W5-7

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

How does the enable pin function?

The enable pin turns the regulator on when driven high and puts it into shutdown mode when pulled low. It must not be left floating.

What is the typical standby current?

The typical standby current is 0.02µA when the enable pin is set low and there is no load.