NCP4682DSQ18T1G

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

The NCP4682DSQ18T1G is a fixed-output low dropout linear voltage regulator manufactured by onsemi. It provides a nominal output voltage of 1.8 V with a maximum continuous output current capability of 150 mA. The device operates within an input voltage range of 1.70 V to 5.25 V and maintains high accuracy, specified as ±0.8% at +25°C. It features an ultra-low quiescent supply current of 1.5 µA and includes a Chip Enable (CE) pin for power management. Integrated protections include current fold-back limiting. The component is housed in the SC-82AB surface-mount package.

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

• Ultra-low supply current consumption suitable for battery-powered applications
• Integrated Chip Enable function for active power saving
• Current fold-back protection against overcurrent and short circuit conditions
• Stable operation when used with ceramic output 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 'SQ' corresponds to the SC-82AB package variant during procurement. Confirm that the 'D' designation indicates the inclusion of the auto-discharge feature on the output pin. Ensure compatibility with the required tape and reel shipping specifications before finalizing orders.

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

Select this component when a fixed 1.8 V rail is required with minimal static power draw. The integrated enable pin allows system-level power control. Verify that the application load does not exceed the 150 mA limit and that the input voltage remains within the 1.70 V to 5.25 V operational window for proper regulation.

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

This part belongs to the NCP4682 series of CMOS low dropout regulators. It shares core electrical characteristics with the NCP4685, which lacks the enable pin. The DSQ suffix specifically identifies the SC-82AB package configuration with the auto-discharge output feature, distinguishing it from UDFN or SOT-23 variants.

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

Direct substitutes include other NCP4682 variants with different output voltages or packages, such as NCP4682DSQ33T1G for 3.3 V output. Cross-series replacements like the NCP4685 are available if the enable pin functionality is not required.