AP7315Q-18W5-7

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

The AP7315Q-18W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 1.8V output with a maximum current of 150mA. The device operates within a wide input voltage range of 1.7V to 5.25V and supports junction temperatures from -40°C to +125°C. Key electrical characteristics include ±1% output voltage accuracy, 75dB ripple rejection at 1kHz, and 60µVrms output noise. Quiescent current is as low as 35µA. It utilizes a SOT25 package.

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

• Automotive compliant with AEC-Q100 Grade 1 qualification and PPAP support
• High power supply ripple rejection for noise-sensitive applications
• Low output noise suitable for RF and communication circuits
• Integrated enable pin for precise power management control

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

• Infotainment power supplies
• Automotive RF supply
• Cameras
• Automotive POL in ADAS
• Automotive wireless communication

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

Verify the specific suffix W5 corresponds to the SOT25 package and -7 indicates tape and reel packaging. Confirm that the Q suffix denotes automotive compliance and AEC-Q100 Grade 1 qualification. Ensure the ordering code matches the required 1.8V fixed output variant. Cross-reference the manufacturer part number with official Diodes Incorporated documentation to validate component authenticity and specifications before procurement.

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

Select this component for designs requiring high precision and low noise in automotive environments. The 1.8V fixed output eliminates external resistor networks. Verify input voltage stability within the 1.7V to 5.25V range. Consider the SOT25 footprint for space-constrained layouts. Ensure thermal dissipation requirements are met given the 150mA output capability and specified thermal resistance values.

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

This part belongs to the AP7315Q series of low dropout regulators designed for automotive applications. It shares features with other variants in the family but is distinguished by its specific 1.8V output voltage and SOT25 package configuration. The series is characterized by CMOS process technology, offering low quiescent current and high PSRR for sensitive electronic systems.

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

AP7315DQ-18W5-7: Identical electrical performance but includes an internal output discharge function.