AP7343-135W5-7

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

The AP7343-135W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 1.35V output with a maximum current capacity of 300mA. It operates within an input voltage range of 1.7V to 5.25V and features a typical quiescent current of 35µA. The device offers high power supply rejection ratio (PSRR) of 75dB at 1kHz and maintains output voltage accuracy within ±1%. Packaged in the compact SOT-25-5 form factor, it supports surface mount installation and functions reliably across an ambient temperature range of -40°C to +85°C.

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

• CMOS-based architecture delivering high output voltage accuracy and low noise performance
• Integrated enable pin for precise power management control and shutdown capability
• Built-in thermal shutdown and fold-back short-circuit protection mechanisms

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

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

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

Verify the specific suffix W5 corresponds to the SOT-25 package and the 135 code indicates the 1.35V fixed output. Confirm RoHS compliance and lead-free status as per manufacturer specifications. Ensure ordering quantities align with standard tape and reel packaging requirements provided by Diodes Incorporated.

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

Select this component when a low-noise, high-PSRR LDO is required for sensitive analog or RF circuits. The 1.35V output suits applications needing precise low-voltage rails. Consider the SOT-25 package for space-constrained designs. Verify that the input voltage remains above the dropout threshold under all load conditions.

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

This part belongs to the AP7343 series of low dropout regulators designed for low-power handheld communication equipment. The series includes various fixed output voltages and packages, such as X2-DFN1010-4. The AP7343D variant includes an auto-discharge feature, whereas the standard AP7343 does not.

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

AP7343D-135W5-7 provides identical electrical characteristics but includes an integrated output discharge resistor for faster shutdown times.