AP7315D-26W5-7

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

The AP7315D-26W5-7 is a low dropout regulator manufactured by Diodes Incorporated, featuring a fixed 2.6V output voltage and an integrated auto-discharge function. It operates within an input voltage range of 1.7V to 5.25V and guarantees a maximum output current of 150mA. The device utilizes a CMOS process and is housed in a surface-mount SOT-25 package. Key electrical characteristics include a quiescent current as low as 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz.

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

• Integrated resistor network provides precise fixed output voltage with ±1% accuracy.
• Built-in discharge circuit automatically pulls the output low when disabled.
• High power supply ripple rejection ensures stable performance under noisy conditions.
• Low output noise supports sensitive analog and RF circuitry requirements.

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

• Smart Phone/PAD
• RF Supply
• Cameras
• Portable Videos
• Wireless Communication

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

Verify that the specific part number suffix matches the required output voltage and package type. Confirm the presence of the 'D' designation indicates the inclusion of the internal auto-discharge feature. Ensure compliance with RoHS and Halogen-free standards if environmental regulations apply to the final assembly. Cross-reference the datasheet revision for any updates to absolute maximum ratings or thermal characteristics.

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

Select this component when a fixed 2.6V rail is required alongside shutdown capabilities. The integrated discharge feature distinguishes it from standard variants, making it suitable for applications needing rapid output voltage decay. Evaluate the SOT-25 footprint against available PCB space constraints. Consider the 150mA current limit when sizing external capacitors for load transient response.

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

This device belongs to the AP7315 series of low dropout regulators designed for portable electronics. The series offers various fixed output voltages ranging from 1.1V to 3.3V. The 'D' suffix specifically denotes the version equipped with an output discharge resistor, while the 'W5' suffix identifies the SOT-25 five-pin package configuration used for surface mounting.

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

AP7315-26W5-7 (Non-discharge variant)

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

What is the function of the EN pin?

The Enable pin controls the regulator's operation state. Driving the pin high turns the regulator on, while pulling it low activates the shutdown mode and engages the internal discharge circuit.

How does the AP7315D differ from the standard AP7315?

The AP7315D includes an integrated auto-discharge feature that actively pulls the output voltage to ground when the device is disabled, whereas the standard AP7315 lacks this function.