AP7370-18WR-7

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

The AP7370-18WR-7 is a positive voltage regulator IC from Diodes Incorporated, featuring a wide input voltage range of 3.2 V to 18 V and a fixed output voltage of 1.8 V. It provides an output current capability of 300 mA with a maximum dropout voltage of 500 mV at 100 mA. The device operates within a junction temperature range of -40 °C to +125 °C and includes built-in thermal shutdown, short-circuit protection, and reverse current protection.

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

• Ultra-low quiescent current for extended battery life in portable devices
• High output voltage accuracy across the operating temperature range
• Integrated reverse current protection prevents backflow when input is lower than output
• Compatible with low ESR ceramic capacitors for stable operation

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

• Battery-powered equipment
• Laptop, palmtop, and notebook computers
• Portable information appliances
• Metering devices
• Weighing scales

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

Verify component authenticity through authorized channels as this part is marked Not Recommended for New Design. Confirm package type SOT25 (WR) matches design requirements. Check RoHS compliance status before integration. Ensure supply chain stability due to potential discontinuation or obsolescence status associated with the AP7370 series.

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

Select this regulator for applications requiring high accuracy and low ground current. The WR suffix indicates the specific pinout configuration for the SOT25 package. Ensure input voltage remains within the 3.2 V to 18 V range. Verify that the required load current does not exceed 300 mA. Consider thermal resistance characteristics for heat dissipation in enclosed environments.

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

This component belongs to the AP7370 series of Wide Input Voltage Range, 300mA ULDO Regulators. It is designed for USB and portable device applications. The series offers multiple fixed output voltages and various package options including SOT23, SOT25, SOT89, and U-DFN2020-6. The manufacturer recommends using the AP7375 series for new designs instead.

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

Diodes Incorporated recommends the AP7375 series as a replacement for new designs. Specific substitute part numbers depend on the required output voltage and package type. Consult official documentation for direct pin-compatible alternatives within the newer generation.