AP7370-28SA-7

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

The AP7370-28SA-7 is a positive fixed-output low dropout regulator from Diodes Incorporated, providing a nominal 2.8V output with a maximum continuous current of 300mA. It operates within an input voltage range of 3.2V to 18V and features ultra-low quiescent current. The device incorporates comprehensive protection mechanisms including thermal shutdown, short-circuit current limiting, and reverse current protection. Designed for high accuracy and excellent line/load regulation, it utilizes ceramic capacitors and is housed in a compact SOT-23-3 surface-mount package.

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

• Ultra-low quiescent current consumption
• Reverse current protection capability
• Compatible with low ESR ceramic output capacitors
• Integrated thermal shutdown and short-circuit protection

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

• Battery-powered equipment
• Portable information appliances
• Laptop and notebook computers
• Metering devices

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

Verify component authenticity through authorized channels due to the product's discontinued status. Confirm that the received units match the original specifications, as replacement alternatives may exhibit different electrical characteristics or pin configurations. Ensure compliance with RoHS 3 directives during procurement and validate supplier documentation against official manufacturer discontinuation notices.

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

Select this component when a fixed 2.8V rail is required with minimal ground current draw. The wide input voltage tolerance supports direct battery operation without intermediate buck conversion. Verify that the application load does not exceed the 300mA limit and that the PCB layout accommodates the SOT-23-3 footprint for optimal thermal dissipation under maximum load conditions.

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

This part belongs to the AP7370 series of ULDO regulators designed for portable electronics. It serves as a space-saving solution compared to older LDO technologies. The specific SA suffix denotes the SOT-23-3 package variant, distinguishing it from other package options like SOT25 or SOT89 available within the same functional family.

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

Diodes Incorporated recommends the AP7375 series as the designated replacement for new designs. Verify that the substitute part meets all original electrical requirements, particularly regarding dropout voltage and package dimensions, before integrating it into existing hardware layouts.

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

Does the AP7370-28SA-7 support reverse current flow?

Yes, the device includes built-in reverse current protection to prevent backflow from the output to the input.

What type of output capacitor is recommended?

The regulator is compatible with low ESR ceramic capacitors for stable operation.