AP7343Q-27W5-7

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

The AP7343Q-27W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 2.7V with a guaranteed maximum output current of 300mA. The device operates within an input voltage range of 1.7V to 5.25V and supports an ambient temperature range from -40°C to +125°C. It features high ripple rejection of 75dB at 1kHz, low output noise of 60µVrms, and a quiescent current as low as 35µA. The component is housed in a SOT25-5 surface-mount package.

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

• Automotive compliant design qualified to AEC-Q100 Grade 1 standards for use in demanding environments
• Integrated enable pin allows precise control over regulator operation and shutdown states
• High power supply ripple rejection ensures stable performance in electrically noisy circuits
• Low output noise characteristics suitable for sensitive RF and analog signal processing applications

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

• Infotainment power supplies
• Automotive RF supplies
• Camera modules
• Point-of-load regulation in Advanced Driver Assistance Systems (ADAS)
• Automotive wireless communications systems

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

Verify the specific suffix W5 confirms the SOT25 package configuration required for your PCB layout. Confirm that the Q designation aligns with your project's automotive compliance requirements. Ensure the non-discharge variant matches your system's power-down state specifications. Validate that the fixed 2.7V output meets your downstream circuit voltage tolerances before finalizing procurement.

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

Select this component when a fixed 2.7V rail is required with minimal footprint constraints. The SOT25 package offers a compact solution for dense layouts. Consider the non-discharge feature if external pull-down resistors are undesirable during shutdown. Verify that the 300mA current capability satisfies peak load demands without exceeding thermal limits under worst-case operating conditions.

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

This part belongs to the AP7343Q family of low dropout regulators designed specifically for automotive electronics. The series includes various fixed output voltages ranging from 0.9V to 3.6V. Different package options such as W-DFN2020-6 are available for alternative thermal or spatial requirements. All variants share common electrical characteristics including high PSRR and low quiescent current profiles.

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

AP7343DQ-27W5-7 serves as a direct functional substitute featuring integrated output discharge capabilities.