AP7354D-12W5-7

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

The AP7354D-12W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 1.2V output with a maximum current capacity of 150mA. It operates within an input voltage range of 2.0V to 5.5V and features ultra-low quiescent current of 0.25µA and standby current of 0.02µA. The device includes an integrated enable pin for power management and built-in output discharge functionality. It is housed in a compact SOT-25-5 surface-mount package and supports an operating temperature range from -40°C to +85°C.

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

• Integrated enable control allows precise power switching between active operation and shutdown modes.
• Built-in output discharge circuit ensures rapid removal of residual charge when the device is disabled.
• High output voltage accuracy guarantees reliable performance across varying load and line conditions.
• Ultra-low quiescent and standby currents optimize energy efficiency for battery-powered applications.

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

• Wearable electronics
• Sensor modules for Internet-of-Things (IoT)
• Wireless communication modules
• Battery-operated devices

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

Verify that the specific part number suffix matches the required package type and functional configuration. Confirm that the 'D' designation indicates the presence of the internal output discharge feature, which distinguishes it from standard versions. Ensure compatibility with the intended PCB footprint and soldering profile for the SOT-25-5 package before finalizing procurement orders.

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

Select this component when a fixed 1.2V rail is required alongside strict power consumption constraints. The inclusion of the enable pin makes it suitable for systems requiring dynamic power management. The built-in discharge feature is critical for applications needing fast output voltage decay upon shutdown. Verify that the input voltage remains within the specified 2.0V to 5.5V window for optimal regulation.

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

This regulator belongs to the AP7354 series, designed for ultra-low power consumption in portable electronics. The 'D' suffix specifically denotes the version equipped with an active output discharge resistor, while 'W5' identifies the SOT-25-5 package variant. This series integrates a voltage reference, error amplifier, and current limit protection into a single compact solution.

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

AP7354-12W5-7 serves as the non-discharge alternative within the same package family.

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

What is the function of the 'D' suffix in the part number?

The 'D' suffix indicates that the device includes an internal output discharge resistor, allowing the output voltage to be actively pulled to ground when the enable pin is low.

How does the enable pin operate?

Driving the EN pin high enables the regulator output, while pulling it low places the device into shutdown mode, activating the output discharge if present.