DIO7865BADJXS8

Overview

The DIO7865BADJXS8 is an adjustable low-dropout linear regulator manufactured by DIOO Microcircuits. It supports a wide input voltage range from 3 V to 40 V with transient tolerance up to 45 V. The device delivers a maximum output current of 300 mA and features ultra-low quiescent current of 4 µA typical, reducing standby power consumption. Output voltage is adjustable from 1.2 V to 16 V using external resistors. It includes short-circuit protection, thermal shutdown, and undervoltage lockout. The component operates within an ambient temperature range of -40°C to +125°C and is housed in an EP-SOIC-8 package.

Feature Summary

• Ultra-low quiescent current design for extended battery life in always-on systems
• Wide input voltage range supporting high-voltage applications up to 40 V
• Integrated protection mechanisms including thermal shutdown and short-circuit limiting
• Stable operation with low ESR ceramic capacitors

Applications

• Smoke and heat detectors
• Wireless electronic tools
• Battery pack management
• Sport monitors utilizing PIR or uWave sensors
• Motor drivers

Procurement Notes

Verify the specific ordering suffix XS8 confirms the EP-SOIC-8 package type before procurement. Confirm that the adjustable version designation matches the required output voltage configuration via external feedback resistors. Ensure compatibility with the specified operating temperature range and load conditions for the target application environment.

Selection Notes

Select this component when designing circuits requiring high input voltage tolerance and low standby power consumption. The adjustable output feature allows flexibility in setting precise voltage levels between 1.2 V and 16 V. Consider the thermal performance requirements given the EP-SOIC-8 package's thermal resistance characteristics for sustained operation under heavy loads.

Part Context

The DIO7865 series comprises low-dropout regulators available in multiple packages including DFN-6, EP-MSOP8, EP-SOIC8, and SOT23-5. The BADJXM8 variant denotes the adjustable version in MSOP-8, while the XS8 suffix indicates the SOIC-8 package. This family targets portable and industrial applications demanding efficient power management.

Replacement Considerations

Direct substitutes are not explicitly listed in the provided documentation. Verify pinout compatibility and electrical specifications against alternative LDOs if cross-referencing other manufacturers' components for system upgrades.

FAQ

What is the function of the FB pin on the DIO7865BADJXS8?

The FB (Feedback) pin serves as the input to the control loop error amplifier and is used to set the output voltage of the adjustable LDO via external resistors.

How does the device handle overtemperature conditions?

The DIO7865 includes a thermal shutdown circuit that turns off the output when the junction temperature exceeds the trip point, automatically restoring operation when the temperature falls below the threshold.