NCP170ASN280T2G

Product Overview

The NCP170ASN280T2G from onsemi is a positive fixed-output linear voltage regulator with one output set to 2.8V. The device is rated for 150mA output current and accepts input voltages up to 5.5V, with a maximum dropout voltage of 0.3V at 150mA. Its 900 nA quiescent current and enable control feature are relevant for low-current rails where output control is needed. The 40dB PSRR at 1kHz specifies power-supply rejection, and the device includes over-current and over-temperature protection. It uses a surface-mount 5-TSOP (TSOT-23-5) package and is specified for a junction temperature range of -40°C to 85°C.

Key Features

• Positive fixed linear regulator with a single 2.8V output
• Output current rating of 150mA
• Maximum input voltage of 5.5V
• Maximum dropout voltage of 0.3V at 150mA
• Quiescent current of 900 nA
• Power-supply rejection ratio of 40dB at 1kHz
• Enable control feature
• Over-current and over-temperature protection
• Surface-mount 5-TSOP (TSOT-23-5) package
• Junction temperature range of -40°C to 85°C

Applications

• Low-current 2.8V supply rails in electronic assemblies
• Energy-conscious circuits where enable control and low quiescent current are useful
• Space-constrained surface-mount boards using a TSOT-23-5 package
• Circuits requiring over-current and over-temperature protection from a fixed-output regulator

Design & Procurement Notes

Designers should confirm that the 5-TSOP (TSOT-23-5) surface-mount footprint matches the board layout and that the junction temperature range of -40°C to 85°C is compatible with the expected thermal environment. The fixed 2.8V output, 150mA current rating, 5.5V maximum input voltage, and 0.3V maximum dropout voltage at 150mA define the input-to-output operating range. The 900 nA quiescent current, enable control feature, and 40dB PSRR at 1kHz are relevant when low standby consumption and input noise are design considerations. Over-current and over-temperature protection should be considered as part of the regulator's protection features, while the single fixed-output configuration simplifies selection when a 2.8V rail is required.