AP7335-33WG-7

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

The AP7335-33WG-7 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a stable 3.3V output with a maximum load current of 300mA. The device operates within an input voltage range of 2V to 6V and features a typical quiescent current of 35µA. Key electrical parameters include a dropout voltage of 150mV at full load, a power supply rejection ratio (PSRR) of 65dB at 1kHz, and a fast start-up time of 220µs. It is housed in a SOT-25 surface-mount package.

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

• Integrated enable pin for active-high control of the regulator output state
• Built-in protection mechanisms including current limiting, short-circuit protection, and thermal shutdown
• Capable of maintaining stability using low equivalent series resistance ceramic capacitors as small as 1µF
• Designed for rapid transient response to handle sudden load changes without significant voltage deviation

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

• Smart phones
• MP3/MP4 players
• Battery-powered devices
• Bluetooth headsets

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

Verify that the component matches the specific SOT-25 package configuration and fixed 3.3V output designation. Confirm RoHS compliance status and ensure the ordering suffix corresponds to tape and reel packaging. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity before purchase.

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

Select this regulator when a fixed 3.3V rail is required with moderate current demands up to 300mA. It is suitable for designs prioritizing low standby power consumption due to its minimal quiescent current. Ensure the input voltage remains within the specified 2V to 6V window and verify that the application environment stays within the -40°C to +85°C operating temperature range.

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

This component belongs to the AP7335 family of low dropout regulators from Diodes Incorporated. The series includes both adjustable and fixed output variants available in SOT-25 and DFN2020-6 packages. The family is engineered for portable electronics requiring efficient power management and fast dynamic response capabilities.

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

AP7335-33SNG-7

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

What is the minimum capacitance required for stable operation?

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

How does the enable pin function?

The EN pin turns the regulator on when set to a logic high level and turns it off when pulled low.