AP7332-3333W6-7

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

The AP7332-3333W6-7 is a dual fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides two independent 3.3V outputs with a maximum current of 300mA per channel. The device operates within an input voltage range of 2V to 6V and features a typical quiescent current of 60µA. It includes separate enable pins for each channel, ensuring independent control. The regulator offers high power supply rejection ratio (PSRR) of 65dB at 1kHz and fast transient response capabilities.

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

• Dual channels with independent enable inputs for precise power management
• Low dropout voltage operation suitable for battery-powered applications
• Integrated protection against overcurrent, short circuits, and thermal overload
• Stable performance with small ceramic output capacitors

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

• Cellular phones
• Smart phones and PDAs
• MP3/MP4 players
• Bluetooth headsets

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

Verify the component datasheet revision and ordering suffixes carefully. Confirm that the SOT26 package matches your PCB footprint requirements. Ensure compatibility with RoHS standards if required by your manufacturing process. Check for any specific handling instructions related to moisture sensitivity levels before assembly.

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

Select this component when dual isolated 3.3V rails are needed from a single input source. Consider its low quiescent current for extended battery life in portable devices. Evaluate the thermal dissipation requirements based on the expected load current and ambient temperature conditions during operation.

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

This part belongs to the AP7332 series of dual LDO regulators designed for low power consumption and fast transient response. It is intended for use in mobile communication devices where space and efficiency are critical constraints. The series supports various fixed output voltage combinations to meet different system requirements.

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

The datasheet explicitly recommends using AP7344 or AP7345D as replacements for new designs, as the AP7332 is marked 'Not Recommended for New Design'. Verify pinout compatibility and electrical specifications before substituting.

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

What is the minimum capacitance required for stable operation?

The AP7332 requires a minimum of 1µF ceramic capacitor on both the input and output pins to ensure stability and optimal transient response.

How does the device handle short circuit conditions?

In the event of a short circuit to ground, the internal protection circuitry limits the output current to approximately 120mA to prevent damage to the regulator.