AP7345D-3028RH4-7

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

The AP7345D-3028RH4-7 is a dual low dropout regulator from Diodes Incorporated, packaged in an X2-DFN1612-8 footprint. It provides two independent output channels with fixed voltages of 3.0V and 2.8V respectively. Each channel guarantees an output current of 300mA within an input voltage range of 1.7V to 5.25V. The device features high ripple rejection of 75dB at 1kHz and low output noise of 60µVrms across the 10Hz to 100kHz bandwidth. Quiescent current is specified as low as 50µA per channel, with a standby current of 1.0µA maximum when both enable pins are low.

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

• Dual-channel architecture with individual enable inputs for independent power control
• High ripple rejection ratio ensuring stable performance under noisy supply conditions
• Low output noise characteristics suitable for sensitive RF and communication circuits
• Integrated short-circuit protection and thermal shutdown 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 that the specific ordering suffix RH4 corresponds to the X2-DFN1612-8 package type and -7 indicates tape and reel packaging. Confirm the internal identification code FAT matches the 3.0V/2.8V output configuration. Ensure compliance with RoHS 3 and halogen-free requirements if mandated by project specifications. Cross-reference datasheet DS41528 Rev. 1-2 for absolute maximum ratings before integration.

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

Select this component when dual isolated rails are required from a single input source. The 300mA per channel rating supports moderate load demands typical in portable electronics. Verify that the 3.0V and 2.8V outputs align precisely with target subsystem voltage requirements. Consider the X2-DFN1612-8 package dimensions for PCB layout constraints and thermal dissipation needs relative to ambient operating temperatures.

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

This part belongs to the AP7345D series of dual LDO regulators designed for low-power handheld communication equipment. It utilizes a CMOS process to achieve low quiescent current and high PSRR. The series offers various fixed output voltage combinations within the 1.2V to 3.6V range, all sharing the same compact X2-DFN1612-8 package and functional block diagram structure.

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

AP7345D-3030RH4-7 (3.0V/3.0V)

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 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 a VOUT 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.