AP7351D-28W5-7

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

The AP7351D-28W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a precise 2.8V output with a maximum continuous current of 150mA. The device operates within an input voltage range of 1.4V to 5.5V and features ultra-low quiescent current of 0.5µA, dropping to 0.02µA in standby mode. It includes an enable pin for power control and active output discharge. Packaged in SOT-25, it offers high ripple rejection up to 60dB at 1kHz and maintains output accuracy within ±1% across the operating temperature range.

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

• Ultra-low quiescent current design extends battery life in portable applications
• Integrated enable pin allows precise power management and shutdown control
• Active output discharge ensures safe system startup from known states
• High ripple rejection capability supports noise-sensitive subsystems

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

• Wearable electronics
• IoT sensor modules
• Wireless communication modules
• Battery-operated devices
• Image sensors

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

Verify that the specific suffix W5 corresponds to the SOT-25 package type required for your PCB layout. Confirm the -7 packaging designation matches your reel or cut tape needs. Ensure the EN pin is driven correctly to avoid floating states during operation. Check RoHS compliance documentation if environmental regulations apply to your manufacturing process.

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

Select this component when a stable 2.8V rail is needed with minimal static power consumption. The SOT-25 package suits space-constrained designs requiring surface mount technology. Consider the thermal resistance characteristics if operating near maximum load currents. Verify input voltage stability to ensure the dropout voltage remains within acceptable limits for your specific application requirements.

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

This part belongs to the AP7351D series of LDO regulators designed for low-power handheld and wearable devices. The series offers various fixed output voltages ranging from 0.8V to 4.5V. It shares common features like CMOS construction, thermal protection, and short-circuit current limiting across all voltage variants in the family.

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

AP7351D-28FS4-7B serves as a direct functional substitute using the X2-DFN1010-4 package instead of SOT-25.