AP7335A-33SN-7

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

The AP7335A-33SN-7 is a fixed-output low-dropout linear regulator manufactured by Diodes Incorporated, providing a stable 3.3V output with ±1% accuracy. It supports up to 300mA of continuous load current and operates within an input voltage range of 4.3V to 6V. The device features a typical quiescent current of 35µA and achieves a power supply rejection ratio of 65dB at 1kHz. It utilizes the U-DFN2020-6 package and functions reliably across an ambient temperature range from -40°C to +85°C.

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

• Integrated enable pin for active-high control of power states
• Built-in thermal shutdown and current limit protection mechanisms
• Fast transient response capability for dynamic load changes
• Stable operation with low equivalent series resistance ceramic capacitors

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

• Smartphones
• MP3/MP4 media players
• Battery-powered devices
• Bluetooth headsets
• LCD televisions

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

Verify that the component matches the specific U-DFN2020-6 package configuration required for your printed circuit board layout. Confirm the fixed 3.3V output specification aligns with your system design requirements. Ensure compatibility with the recommended minimum 1µF ceramic output capacitor for stability. Check RoHS compliance status if environmental regulations apply to your manufacturing process.

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

Select this regulator when a compact footprint and low quiescent current are critical for battery-operated applications. The U-DFN2020-6 package offers space efficiency compared to larger alternatives. Consider the 3.3V fixed output constraint as no other voltage options are currently available in this specific part number. Evaluate the thermal performance based on your expected power dissipation and ambient operating conditions.

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

This component belongs to the AP7335A family of low-dropout regulators designed for portable electronics. It shares functional similarities with other members of the series but is distinct due to its fixed 3.3V output and specific U-DFN2020-6 packaging. The device integrates essential protection features like thermal shutdown and current limiting to ensure reliability in mobile consumer devices.

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

No public confirmed substitute part numbers are documented for this specific component.

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

What is the minimum input voltage required for stable regulation?

The minimum input voltage is 4.3V when delivering a full 300mA load current.

How does the device handle short-circuit conditions?

Short-circuit protection clamps the output current to approximately 160mA to prevent damage.

Is a minimum load current required for stability?

No minimum load is required; the device remains stable under no-load conditions.