AP7343-12W5-7

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

The AP7343-12W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal 1.2V output with a maximum continuous current of 300mA. It operates within an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio (PSRR) of 75dB at 1kHz alongside low output noise of 60µVrms from 10Hz to 100kHz. The device incorporates CMOS technology for low quiescent current consumption of 35µA and includes an enable pin for power management. Packaged in SOT-25, it offers thermal shutdown and short-circuit protection.

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

• Integrated enable control for precise power sequencing and shutdown
• High ripple rejection and low output noise for sensitive RF applications
• Built-in thermal shutdown and fold-back short-circuit protection

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

• Smart phones and tablets
• RF supplies
• Cameras
• Portable media players

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

Verify the specific suffix W5 confirms the SOT-25 package configuration. Ensure the absence of 'D' indicates the non-discharge variant if output discharge functionality is not required. Confirm RoHS compliance status matches project environmental standards. Validate that the ordering code aligns with the intended tape and reel quantity specifications.

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

Select this component when a stable 1.2V rail is needed with minimal footprint in portable devices. The SOT-25 package suits dense PCB layouts where space is constrained. Consider the 300mA current capability against peak load requirements. Evaluate the low quiescent current benefit for battery-operated systems requiring extended standby times.

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

This part belongs to the AP7343 series of high PSRR low-noise LDOs. It shares architectural similarities with other variants like the AP7343D but lacks the integrated output discharge feature. The series targets low-power handheld communication equipment and portable electronics requiring efficient voltage regulation.

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

AP7343D-12W5-7 serves as a direct substitute if output discharge functionality is desired.