AP7351D-28FS4-7B

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

The AP7351D-28FS4-7B is a low dropout regulator manufactured by Diodes Incorporated, featuring an integrated resistor network for a fixed 2.8V output voltage. It operates within a wide input voltage range of 1.4V to 5.5V and guarantees a continuous output current of 150mA. The device incorporates ultra-low quiescent current characteristics, with typical standby current as low as 0.02µA when the enable pin is deactivated. It provides high output voltage accuracy of ±1% across the operating temperature range and includes thermal shutdown protection along with short-circuit current limiting.

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

• Ultra-low power consumption with minimal quiescent and standby currents designed to extend battery life in portable devices
• Integrated active output discharge circuitry that ensures the system starts from a known state upon activation
• Built-in thermal shutdown and short-circuit current limit protection mechanisms for enhanced operational reliability
• Compact X2-DFN1010-4 (Type B) package footprint optimized for dense printed circuit board layouts

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

• Wearable electronics requiring extended battery operation
• Sensor modules for Internet-of-Things (IoT) applications
• Wireless communication modules
• Battery-operated devices
• Image sensors

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

Verify the specific ordering suffix FS4-7B corresponds to the required X2-DFN1010-4 Type B package and tape-and-reel packaging quantity. Confirm that the fixed 2.8V output voltage aligns with the target circuit design requirements. Ensure compatibility with the specified operating temperature range and moisture sensitivity level prior to final procurement decisions.

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

Select this component for designs prioritizing minimal static power draw and compact physical dimensions. The fixed 2.8V output eliminates external resistor networks, simplifying the schematic. Verify that the 150mA maximum output current meets the peak load demands of the application while maintaining stability with appropriate ceramic capacitors.

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

This part belongs to the AP7351D series of low dropout regulators from Diodes Incorporated. The series is engineered for low-power handheld and wearable devices where battery longevity is critical. The AP7351D family offers various fixed output voltages and packages, providing flexibility for different system architectures while maintaining consistent performance characteristics.

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

AP7351D-28W5-7 serves as a functional alternative utilizing the SOT25 package instead of the X2-DFN1010-4 form factor.