AP7345D-2833RH4-7

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

The AP7345D-2833RH4-7 is a dual-channel low dropout regulator manufactured by Diodes Incorporated. It provides fixed output voltages of 2.8V on Channel 1 and 3.3V on Channel 2. Each channel supports an output current of up to 300mA with a guaranteed accuracy of ±1%. The device operates within an input voltage range of 1.7V to 5.25V and features a typical ripple rejection ratio of 75dB at 1kHz. Quiescent current is specified as low as 50µA, while the output noise voltage is 60µVrms across a bandwidth of 10Hz to 100kHz. It utilizes 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 clean signal processing
• Low output noise performance suitable for sensitive RF applications
• Integrated thermal shutdown and short-circuit protection mechanisms

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

• Smart Phone/PAD
• RF Supply
• Cameras
• Portable Video
• Wireless Communication

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

Verify the specific ordering suffix RH4-7 corresponds to the X2-DFN1612-8 package and tape-and-reel packaging configuration. Confirm that the internal identification code matches the required 2.8V/3.3V output combination. Ensure compliance with RoHS 3 and halogen-free requirements if mandated by the target market regulations.

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

Select this component when a compact dual-rail solution is required for portable devices. The X2-DFN1612-8 package minimizes PCB footprint compared to larger alternatives. Verify that the load transient response and stability requirements align with the recommended ceramic capacitor specifications provided in the datasheet application information.

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

This part belongs to the AP7345D series of dual LDO regulators from Diodes Incorporated. The series is designed for low-power handheld communication equipment requiring high PSRR and low noise. The 'D' suffix indicates the inclusion of auto-discharge resistors on the outputs, which safely pull down the voltage when the enable pin is deactivated.

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

AP7345D-2833RH4-7

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

What is the function of the EN pins on the AP7345D?

The EN1 and EN2 pins serve as independent enable controls for Channel 1 and Channel 2 respectively. Driving these pins high activates the respective regulator output, while pulling them low shuts down the channel.

How does the AP7345D handle short-circuit conditions?

When an output pin is shorted to ground, the device triggers short-circuit protection, clamping the output current to approximately 60mA to prevent damage from overheating or over-current.