AP7343-28W5-7

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

The AP7343-28W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 2.8 V output with a maximum current of 300 mA. It operates within an input voltage range of 1.7 V to 5.25 V and features a typical ripple rejection ratio of 75 dB at 1 kHz. The device exhibits a quiescent current of 35 µA and maintains an output voltage accuracy of ±1%. Packaged in the SOT-25 form factor, it supports an ambient operating temperature range from -40 °C to +85 °C.

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

• Integrated enable pin for power management control
• High power supply ripple rejection capability
• Low output noise performance for sensitive circuits
• Built-in thermal shutdown and short-circuit protection

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

• Smart phones and tablets
• RF supplies
• Cameras
• Portable videos
• Wireless communication devices

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

Verify the specific suffix W5 corresponds to the SOT-25 package configuration required for your PCB layout. Confirm that the non-discharge variant meets system requirements if rapid output voltage decay is not necessary. Ensure compatibility with RoHS and halogen-free manufacturing standards during component sourcing.

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

Select this component when a compact surface-mount solution is needed for low-power applications requiring high line regulation. The SOT-25 package offers a small footprint suitable for dense layouts. Consider the 300 mA current limit and 2.8 V fixed output as primary constraints for load design.

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

This part belongs to the AP7343 series of CMOS low-dropout regulators designed for handheld communication equipment. The series provides various fixed output voltages ranging from 0.9 V to 3.6 V. The AP7343-28W5-7 specifically delivers 2.8 V in the SOT-25 package without an integrated output discharge resistor.

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

AP7343Q-28W5-7 is the automotive-compliant version of this regulator. Verify if automotive-grade reliability is required for the target application environment before substituting.