AP7344D-2818RH4-7

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

The AP7344D-2818RH4-7 is a dual-channel low-dropout regulator manufactured by Diodes Incorporated. It provides fixed output voltages of 2.8V on Channel 1 and 1.8V on Channel 2, 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 maintains an output voltage accuracy of ±1% at +25°C. Key electrical characteristics include a typical ripple rejection ratio of 75dB at 1kHz, a low output noise of 60µVrms across the 10Hz to 100kHz bandwidth, and a quiescent current as low as 50µA. The component is housed in an X2-DFN1612-8 package.

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

• Dual-channel architecture with independent enable inputs for each regulator
• High power supply ripple rejection capability for noise-sensitive applications
• Low output noise performance suitable for RF signal integrity
• Integrated short-circuit protection and thermal shutdown mechanisms

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

• Smart phones and tablets
• RF supplies
• Cameras
• Portable videos
• Wireless communication devices

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

Verify that the specific ordering suffix matches the required output discharge configuration, as the 'D' suffix indicates built-in auto-discharge functionality. Confirm the package code corresponds to the X2-DFN1612-8 form factor. Ensure compliance with RoHS directives and halogen-free requirements if specified for the target assembly process. Validate that the component meets the operating temperature range of -40°C to +85°C for the intended environment.

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

Select this component when a compact dual-output solution is required for portable electronics. The wide input voltage range accommodates various lithium-ion battery configurations. Consider the low dropout voltage characteristics for efficient power management under varying load conditions. Evaluate the need for the integrated discharge feature based on system startup requirements and standby current constraints.

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

This part belongs to the AP7344 series of dual LDO regulators from Diodes Incorporated. The series is designed for low-power handheld communication equipment requiring high accuracy and low noise. The AP7344D variant specifically includes active discharge resistors on the outputs when disabled. The datasheet notes that this product is not recommended for new designs and suggests using the AP7345D instead.

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

The official documentation explicitly recommends using the AP7345D as a replacement for new designs. Verify pin compatibility and electrical specifications before substituting.