AP7346D-1815FS6-7

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

The AP7346D-1815FS6-7 is a dual high accuracy current limit low dropout regulator based on CMOS process. It provides fixed output voltages of 1.8V and 1.5V with ±1% accuracy. The device operates within an input voltage range of 1.7V to 5.25V and delivers up to 130mA per channel. Key electrical parameters include a ripple rejection of 75dB at 1kHz, output noise of 60µVrms (10Hz to 100kHz), and quiescent current as low as 35µA. Dropout voltage ranges from 0.22V to 0.59V depending on output voltage and load.

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

• Dual-channel architecture with independent enable inputs for power management
• High output voltage accuracy maintained across temperature variations
• Integrated short-circuit protection with fold-back current limiting
• Built-in auto-discharge function for rapid output voltage decay upon shutdown

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

• Fingerprint modulars
• RF supplies
• Wireless communications
• Portable media players

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

Verify component authenticity through authorized Diodes Incorporated channels or certified distributors. Confirm RoHS compliance status and check for specific automotive qualification requirements if applicable. Review the datasheet for absolute maximum ratings to ensure operational safety margins are met during system integration.

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

Select this component for designs requiring compact dual-rail power solutions in handheld devices. Ensure input voltage remains within the specified 1.7V to 5.25V range. Verify that load transients do not exceed stability limits defined by output capacitor ESR characteristics. Consider thermal dissipation requirements given the X2-DFN1212-6 package footprint.

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

This part belongs to the AP7346 series of dual LDO regulators manufactured by Diodes Incorporated. It utilizes the X2-DFN1212-6 package to minimize PCB area. The 'D' suffix indicates the inclusion of an output discharge feature. This series targets low-power portable electronics requiring precise voltage regulation and efficient space utilization.

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

AP7345D-1815RH4-7

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

What is the function of the EN pins?

The EN1 and EN2 pins control the activation of Channel 1 and Channel 2 respectively. Driving these pins high enables the outputs, while pulling them low shuts down the regulators.

How does the device handle short circuits?

The AP7346D includes short-circuit protection that clamps the output current to approximately 60mA when VOUT is shorted to ground, protecting the regulator from overheating.