AP7335-18WG-7

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

The AP7335-18WG-7 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a stable 1.8V 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. It includes built-in current limit, thermal shutdown, and short circuit protection. The component is housed in a SOT25 package and supports operation across an ambient temperature range of -40°C to +85°C.

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

• Provides fast transient response suitable for DSP and GSM chipsets with rapidly changing loads
• Operates stably with low ESR ceramic output capacitors as small as 1µF
• Includes active enable control via logic high level on the EN pin
• Features integrated thermal shutdown and current limiting for fault protection

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 ordering suffix 'WG' corresponds to the SOT25 package and '7' indicates tape and reel packaging. Confirm the internal code '18' specifies the fixed 1.8V output voltage. Ensure compliance with RoHS directives and check for lead-free finish requirements before finalizing procurement specifications.

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

Select this component when a fixed 1.8V rail is required with up to 300mA load capability. It is appropriate for designs needing low ground current consumption and fast startup times. Verify that the input voltage remains between 2V and 6V and that the PCB layout allows for adequate thermal dissipation to prevent thermal shutdown under heavy load conditions.

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

This part belongs to the AP7335 series of low dropout regulators from Diodes Incorporated. The series offers both adjustable and fixed output options in SOT25 and DFN2020-6 packages. The AP7335-18WG-7 specifically denotes the fixed 1.8V variant in the SOT25 form factor, designed for portable electronics requiring efficient power management.

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

AP7335-18SNG-7 (DFN2020-6 package)

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

What is the minimum capacitance required for stability?

The device is stable with a ceramic output capacitor of at least 1µF.

How is the device enabled or disabled?

The EN pin must be set to a logic high level to turn the regulator on.