MT6680P/A

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

The MT6680P/A is a positive voltage regulator with separated bias voltage (VBIAS), designed for applications requiring low input voltage and ultra-low dropout voltage, delivering an output current up to 1A. The device features an adjustable output voltage range from 0.5V to 3V, set by an external resistive divider. It operates with an input voltage range of 0.8V to 5.5V and a bias voltage range of 3V to 5.5V. Key electrical characteristics include an ultra-low dropout voltage of 60mV at 1A, output voltage accuracy of ±1% over the operating ambient temperature, and low quiescent current consumption of 35μA in operating mode.

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

• Features an ultra-low dropout voltage capability ideal for applications where the output voltage is very close to the input voltage.
• Includes an active discharge function and enable control to reduce supply current significantly during sleep mode.
• Designed for stability using low ESR ceramic output capacitors, facilitating space-saving designs.
• Incorporates comprehensive protection mechanisms including thermal shutdown, under-voltage lockout, and current limit.

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

• Battery powered systems
• Portable electronic devices
• Digital set top boxes
• Industrial HMI, desktop POS, KIOSK, digital signage

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

Verify that the specific ordering suffix matches the required package type and output configuration. Confirm that the component meets RoHS compliance and halogen/lead-free requirements as specified in the datasheet. Ensure the supplier provides documentation confirming the part number corresponds to the adjustable output version. Check for any specific handling precautions related to electrostatic discharge susceptibility.

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

Select this regulator when the application demands high performance with minimal voltage drop between input and output. Consider the separate bias voltage requirement, ensuring VBIAS remains higher than VOUT plus 1.6V for normal operation. Evaluate the thermal resistance and power dissipation capabilities based on the expected ambient temperature and PCB layout constraints to ensure reliable operation within the junction temperature limits.

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

The MT6680 is part of MediaTek's portfolio of power management integrated circuits, specifically designed for portable and battery-operated electronics. It utilizes a WL-CSP-6B 0.8x1.2 (BSC) package, which allows for compact board layouts. The device is engineered to provide stable regulation with low noise, making it suitable for sensitive analog and digital loads in consumer and industrial applications.

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

No publicly confirmed substitute part numbers are available in the provided documentation.

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

What is the minimum bias voltage required for the MT6680P/A?

The minimum bias voltage (VBIAS) required for normal operation is 3V, and it must be maintained at a level higher than VOUT + 1.6V.

How is the output voltage adjusted on the MT6680P/A?

The output voltage is adjustable via an external resistive divider connected to the ADJ pin, allowing for output voltages ranging from 0.5V to 3V.

What happens if the junction temperature exceeds the maximum rating?

If the junction temperature exceeds the absolute maximum rating, the Over-Temperature Protection (OTP) will trigger, shutting down the device until the temperature returns to a normal state.