AP7381-70SA-7

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

The AP7381-70SA-7 is a positive voltage regulator IC from the AP7381 series, manufactured by Diodes Incorporated. It provides a fixed output voltage of 7.0 V with a maximum output current of 150 mA. The device supports an input voltage range from 3.3 V to 40 V and operates within a junction temperature range of -40 °C to +125 °C. It features a dropout voltage of 1000 mV at 100 mA (for 3.3 V versions) and includes thermal shutdown and short-circuit 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 operating conditions
• Compatible with low ESR ceramic capacitors
• Integrated thermal shutdown and short-circuit protection

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

• E-meters
• Battery-powered equipment
• Laptops and notebook computers
• Portable information appliances

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

Verify the specific suffix 'SA' confirms the SOT23-3 package type and '7' indicates tape and reel packaging. Confirm the '70' designation corresponds to the 7.0 V fixed output version. Ensure compliance with RoHS 3 and lead-free requirements as specified in the datasheet notes. Check for any automotive qualification requirements if applicable to your design.

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

Select this component when a stable 7.0 V rail is required from inputs up to 40 V. The SOT23 package suits space-constrained designs. Verify that the load current does not exceed 150 mA and that the input-to-output differential allows for proper regulation given the dropout characteristics. Consider the thermal resistance of the PCB layout for heat dissipation.

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

This part belongs to the AP7381 series of wide input voltage LDO regulators. The series offers multiple fixed output voltages including 2.8 V, 3.3 V, 5.0 V, and 7.0 V. It is designed for USB and portable applications requiring high accuracy and low power consumption. The series is available in SOT23, SOT89, and TO92 packages.

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

Direct substitutes within the same series include AP7381-28SA-7, AP7381-33SA-7, and AP7381-50SA-7 for different voltage outputs. Cross-package equivalents are AP7381-70Y-13 (SOT89) and AP7381-70V-A (TO92). Verify pinout compatibility and thermal performance when switching packages.