AP7344D-285285RH4-7

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

The AP7344D-285285RH4-7 is a dual-channel low-dropout regulator manufactured by Diodes Incorporated. It provides two independent fixed output voltages of 2.85V each, with a guaranteed continuous output current of 300mA per channel. The device operates within an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio (PSRR) of 75dB at 1kHz and low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is typically 50µA when one channel is active. It includes integrated enable controls for both channels and short-circuit protection, housed in an X2-DFN1612-8 package.

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

• Dual-channel architecture with individual enable inputs for independent control
• High ripple rejection and low output noise suitable for sensitive RF applications
• Integrated short-circuit protection and thermal shutdown mechanisms
• Low dropout voltage characteristics across the full operating temperature range

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

• Smart phones and tablets
• RF power supplies
• Cameras
• Portable media players
• Wireless communication equipment

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm datasheet revision DS37368 Rev. 3 matches your design requirements. Ensure ordering suffix RH4 corresponds to the X2-DFN1612-8 package and -7 indicates tape and reel packaging. Validate that the specific part number aligns with your bill of materials before finalizing procurement.

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

Select this component for designs requiring two regulated rails from a single IC footprint. Verify input voltage stability remains within the 1.7V to 5.25V range under all load conditions. Ensure output capacitors meet ESR specifications for stability. Consider the X2-DFN1612-8 package dimensions for PCB layout constraints. Check if automotive qualification is required, as standard parts may differ from AEC-Q100 qualified versions.

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

This part belongs to the AP7344 series of dual LDO regulators. It is explicitly marked as not recommended for new designs in the official documentation. Engineers are directed to use the AP7345D series as the modern replacement. The AP7344 utilizes CMOS technology and offers fixed output options ranging from 1.2V to 3.6V per channel.

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

Official documentation recommends using the AP7345D series instead of the AP7344 for new designs. Verify pin compatibility and electrical parameter equivalence between the legacy AP7344 and the suggested AP7345D family before substitution.