AP7350D-27CF4-7

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

The AP7350D-27CF4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 2.7V with an accuracy of ±1%. The device supports a guaranteed output current of 150mA and operates within an input voltage range of 2.0V to 5.25V. Quiescent current is specified at 0.25µA, while standby current reaches as low as 0.02µA. Dropout voltage is typically 0.21V at full load. The component utilizes the X2-WLB0606-4 package and includes an enable pin for power control.

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

• Ultra-low quiescent and standby currents designed to extend battery life in portable applications
• Integrated enable pin allows precise control over regulator shutdown and active states
• Built-in output discharge resistor ensures rapid voltage decay when disabled
• High ESD protection exceeding JESD standards for robust operation

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 indicates the presence of the internal output discharge feature, as this distinguishes it from non-discharge variants. Confirm the package type matches the required footprint for PCB layout. Ensure compliance with RoHS and halogen-free requirements if mandated by project specifications. Check datasheet limits for thermal dissipation under expected operating conditions.

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

Select this component when a fixed 2.7V rail is required with minimal board space due to its chip-scale packaging. It is suitable for designs prioritizing extended battery life through ultra-low standby current consumption. Consider the built-in discharge feature if fast turn-off times are necessary. Ensure input voltage remains within the 2.0V to 5.25V range to maintain regulation.

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

This device belongs to the AP7350 series of low dropout regulators from Diodes Incorporated. The series offers various fixed output voltages ranging from 1.2V to 4.5V. The 'D' suffix specifically denotes the version equipped with an active output discharge function, differentiating it from standard versions without this feature.

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

AP7350-27CF4-7

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 regulator includes an internal active output discharge resistor, which pulls the output voltage down rapidly when the enable pin is set to a low state.

How does the enable pin operate?

Driving the EN pin high enables the regulator output, while pulling it low activates the shutdown mode and engages the output discharge function.