NCP552SQ28T1

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

The NCP552SQ28T1 is a fixed-output CMOS low-dropout linear regulator with an 80 mA maximum output current. It provides a nominal 2.8 V output voltage and features an ultra-low quiescent current of 2.8 µA typical. The device includes an enable pin for power control, operates within an industrial temperature range of -40°C to +85°C, and offers 2.0% output voltage accuracy. It utilizes a micro-miniature SC82-AB (SC70-4) surface-mount package.

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

• Ultra-low quiescent current consumption designed for battery-powered applications
• Integrated enable pin for ON/OFF control and standby mode management
• Capable of stable operation without requiring an output capacitor
• Includes internal thermal shutdown and current limit protection circuits

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

• Handheld communication equipment
• Portable battery-powered consumer products
• Camcorders and cameras
• Hand-held instruments

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

Verify the specific ordering suffix 'SQ' corresponds to the required SC82-AB package and tape-and-reel shipping configuration. Confirm that the standard 2.8 V output voltage meets the system requirements. Ensure the industrial temperature rating (-40°C to +85°C) aligns with the intended operating environment. Check for any lead-free or RoHS compliance markings if required by the manufacturing process.

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

Select this component when low static current is critical for extending battery life in portable devices. The integrated enable feature allows for system-level power management. Verify that the input voltage remains within the 12 V maximum rating and that the dropout voltage characteristics at 80 mA are sufficient for the application's minimum input supply. Consider the SC82-AB package size constraints during PCB layout.

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

This part belongs to the NCP552 series of NOCAP™ voltage regulators from onsemi. The series is engineered for handheld and portable applications requiring minimal quiescent current. The NCP552 variant specifically distinguishes itself by including an enable pin, unlike the NCP553 which lacks this control feature but shares similar electrical performance and packaging.

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

NCP552SQ25T1: Identical regulator with a 2.5 V fixed output instead of 2.8 V.

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

Does the NCP552SQ28T1 require an output capacitor for stability?

No, the device is designed to be stable without an output capacitor, though capacitors can be used to improve load transient response.

How does the enable pin function on the NCP552?

Pulling the enable pin high turns the regulator on, while pulling it low places the device into a low-power standby mode.