NCP4682HMU33TCG

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

The NCP4682HMU33TCG is a fixed-output linear voltage regulator from onsemi, providing a nominal 3.3 V output with a maximum continuous current of 150 mA. It operates within an input voltage range of 1.70 V to 5.25 V and features ultra-low supply current of 1.0 µA. The device includes a Chip Enable (CE) function for power management, achieving a standby current of 0.1 µA. Output voltage accuracy is ±0.8% at 25°C. Integrated protections include current fold-back for overcurrent conditions. The component is housed in a 4-UDFN package measuring 1.0 x 1.0 mm.

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

• Ultra-low quiescent current operation suitable for battery-powered applications
• Integrated Chip Enable pin for active power control and standby mode
• Current fold-back protection mechanism against short-circuit conditions
• Stable performance with ceramic capacitors

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

• Battery-powered equipment
• Networking and communication equipment
• Cameras, DVRs, set-top boxes, and camcorders
• Home appliances

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

Verify the specific ordering suffix HMU33TCG to confirm the UDFN4 package, 3.3 V fixed output, and high-level enable functionality. Confirm RoHS compliance status as indicated by the TCG suffix. Check manufacturer documentation for End-of-Life notifications or Product Change Notices that may affect availability or specifications.

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

Select this component when low static current consumption is critical for extending battery life. The integrated enable feature allows system-level power gating. Ensure the application requires a fixed 3.3 V rail and does not exceed the 150 mA output limit. Verify thermal requirements for the UDFN4 package based on PCB layout and ambient temperature conditions.

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

This part belongs to the NCP4682 series of CMOS Low Dropout Linear Voltage Regulators. It is distinct from the NCP4685, which lacks the Chip Enable function. The H-series designation indicates the inclusion of the enable pin, while the M-series denotes the specific UDFN4 package configuration.

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

Direct functional equivalents within the same family include NCP4682DMU33TCG, which offers auto-discharge capabilities instead of simple enable control. Other package variants such as SOT-23-5 or SC-82AB exist but require footprint modifications.