AP7350D-45CF4-7

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

The AP7350D-45CF4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a stable 4.5V output with a maximum current of 150mA. The device operates within an input voltage range of 2.0V to 5.25V and maintains an output voltage accuracy of ±1%. Key electrical parameters include a quiescent current of 0.25µA, standby current of 0.02µA, and a typical dropout voltage of 0.14V at full load. It features an integrated enable pin and built-in output discharge, housed in an X2-WLB0606-4 package.

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

• Ultra-low quiescent and standby currents for extended battery life
• Integrated enable control and active output discharge for power management
• High output voltage accuracy with guaranteed line and load regulation
• Miniature wafer level chip scale package for minimal board space

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

• Wearable Electronics
• Sensor Module for Internet-of-Things (IoT)
• Wireless Communication Module
• Battery-Operated Device
• Camera
• Image Sensor

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

Verify the specific ordering suffix CF4 corresponds to the X2-WLB0606-4 package configuration required for your design. Confirm that the D suffix indicates the inclusion of the internal output discharge feature, as this affects shutdown behavior. Ensure compatibility with RoHS and halogen-free manufacturing standards specified by the supplier.

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

Select this component when a fixed 4.5V rail is required from a single-cell lithium or similar supply source. The ultra-low quiescent current makes it suitable for applications where standby power consumption is critical. Verify that the input voltage remains above the minimum threshold while accounting for dropout voltage under maximum load conditions.

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

This part belongs to the AP7350 series of low dropout regulators designed for portable electronics. The series offers various fixed output voltages ranging from 1.2V to 4.5V. The AP7350D variant specifically includes an active discharge resistor on the output pin to rapidly discharge external capacitors when the device is disabled.

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

AP7350-45CF4-7

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 device includes an active output discharge feature, which connects a resistor between the output and 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 disables the regulator and activates the output discharge mode.