AP7353-25FS4-7

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

The AP7353-25FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 2.5V output with a guaranteed maximum load current of 250mA. It operates within an input voltage range of 2.0V to 5.5V and features a typical quiescent current of 18µA. The device incorporates high power supply rejection ratio (PSRR) capabilities, achieving 90dB at 1kHz and 70dB at 10kHz under specified conditions. Output noise is maintained at 10µVrms across the 10Hz to 100kHz bandwidth. The component utilizes X2-DFN1010-4 surface-mount packaging and includes integrated thermal shutdown and short-circuit protection mechanisms.

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

• Integrated enable pin for precise power management control
• High ripple rejection performance for sensitive analog circuits
• Low output noise characteristics suitable for RF applications
• Built-in thermal shutdown and current limit protection

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

• Smartphones and tablets
• RF power supplies
• Cameras
• Portable video devices
• Wireless communication equipment

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

Verify that the specific part number matches the required package type and output voltage configuration before ordering. Confirm compliance with RoHS and REACH directives if environmental standards are mandatory for the target market. Ensure the design accounts for the correct pinout assignment for the X2-DFN1010-4 footprint to prevent assembly errors during manufacturing.

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

Select this component when a compact solution with low quiescent current and high PSRR is required for battery-powered portable electronics. The fixed 2.5V output eliminates the need for external resistors, simplifying the bill of materials. Consider the thermal dissipation limits in the small DFN package when designing for high ambient temperatures or continuous heavy loads.

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

This device belongs to the AP7353 series of low dropout regulators designed for handheld and wearable communication equipment. The series offers various fixed output voltages ranging from 1.8V to 4.7V. The FS4 suffix specifically denotes the X2-DFN1010-4 package variant, which provides a reduced footprint compared to other available options in the family.

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

AP7353-25CV4-7: Same electrical specifications but utilizes the X1-WLB0707-4 package instead of the X2-DFN1010-4.