NCP4682DMU15TCG

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

The NCP4682DMU15TCG is a fixed-output CMOS Low Dropout Linear Voltage Regulator from the NCP4682 series, manufactured by onsemi. It provides a nominal output voltage of 1.5 V with a maximum output current capability of 150 mA. The device operates within an input voltage range of 1.70 V to 5.25 V and features high output voltage accuracy of ±0.8%. Key electrical characteristics include a typical supply current of 1.0 µA, standby current of 0.1 µA via the Chip Enable function, and a dropout voltage of 0.53 V at full load for this specific voltage setting. It incorporates current fold-back protection and is housed in a UDFN-4 (1.0 x 1.0 mm) surface-mount package.

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

• Ultra-low quiescent current consumption optimized for battery-powered applications
• Integrated Chip Enable function for power management and standby mode control
• Built-in current fold-back protection against over-current and short-circuit conditions
• Stable operation guaranteed with small ceramic capacitors

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

• Battery-powered portable equipment
• Networking and communication devices
• Cameras, DVRs, Set-Top Boxes, and Camcorders
• Home appliances requiring low-power regulation

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

Verify component authenticity through authorized distribution channels due to potential counterfeit risks. Confirm that the UDFN-4 package marking matches the specified 'CC' code for the 1.5 V variant. Ensure application circuits adhere to the recommended thermal relief and PCB layout guidelines to maintain reliability under varying ambient temperatures.

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

Select this part when a fixed 1.5 V rail is required with minimal static power draw. The NCP4682 series is preferred over the NCP4685 when active shutdown capabilities are necessary. Consider the UDFN-4 package for space-constrained designs while ensuring adequate thermal dissipation through the exposed pad connection.

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

This component belongs to the NCP4682 family of ultra-low supply current LDO regulators. It shares architectural similarities with the NCP4685 but distinguishes itself by including a Chip Enable pin for enhanced power efficiency. The DMU suffix indicates the specific UDFN-4 packaging configuration used for surface-mount assembly.

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

NCP4682DMU18TCG: Identical package and functionality with a fixed 1.8 V output.

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

What is the purpose of the CE pin on the NCP4682DMU15TCG?

The Chip Enable (CE) pin allows the regulator to be turned on or off. Applying a high-level voltage activates the device, while a low-level voltage engages standby mode, reducing supply current to 0.1 µA.

How does the current protection mechanism work in this regulator?

The device utilizes a current fold-back protection circuit. During normal operation, it supports up to 150 mA. If an over-current condition occurs, both the output voltage and current decrease until the fault is cleared.