AP7346D-3028FS6-7

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

The AP7346D-3028FS6-7 is a dual high accuracy current limit low dropout regulator with enable, manufactured by Diodes Incorporated. It provides fixed output voltages of 3.0V on Channel 1 and 2.8V on Channel 2. The device supports an input voltage range from 1.7V to 5.25V and delivers up to 130mA output current per channel. Key electrical characteristics include ±1% output voltage accuracy at +25°C, 75dB ripple rejection at 1kHz, and 60µVrms output noise from 10Hz to 100kHz. Quiescent current is as low as 35µA. The component operates within an ambient temperature range of -40°C to +85°C and is housed in an X2-DFN1212-6 package.

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

• Dual-channel architecture with independent enable inputs for each regulator
• High accuracy current limiting circuitry integrated into the design
• Low output noise and high power supply ripple rejection capabilities
• Integrated auto-discharge function for rapid output voltage decay

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

• Fingerprint modulars
• Smart phones and tablets
• RF supplies
• Cameras
• Portable media players

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

Verify the specific ordering suffix FS6 corresponds to the X2-DFN1212-6 package configuration before procurement. Confirm that the D version suffix indicates the inclusion of the built-in output discharge feature. Ensure compatibility with RoHS 3 and REACH standards if required by your manufacturing specifications. Check for any product change notifications regarding this inactive series.

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

Select this component when a compact dual LDO solution is required for space-constrained portable electronics. The wide input voltage range accommodates single-cell battery applications. Verify that the 130mA output current meets the peak load requirements of both channels simultaneously. Consider the thermal dissipation limits inherent to the small footprint package during PCB layout planning.

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

This part belongs to the AP7346 family of dual high accuracy current limit LDO regulators. The datasheet explicitly states that the AP7346 series is not recommended for new designs. Engineers are advised to utilize the AP7345D series as the primary alternative for future development projects requiring similar functionality.

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

AP7345D-3028RH4-7

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

What is the function of the EN pins?

The EN1 and EN2 pins serve as enable inputs for Channel 1 and Channel 2 respectively. Driving these pins high enables the respective outputs, while pulling them low puts the regulators into shutdown mode.

How does the device handle short-circuit conditions?

When VOUT pins are shorted to ground, short-circuit protection triggers and clamps the output current to approximately 60mA, protecting the regulator from overheating and damage.