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UCC281-5 - Low Dropout 1 Ampere Linear Regulator

Download the UCC281-5 datasheet PDF. This datasheet also covers the UCC381-3 variant, as both devices belong to the same low dropout 1 ampere linear regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The UCC381-3/-5/-ADJ family of positive linear series pass regulators is tailored for low drop out applications where low quiescent power is important.

Key Features

  • Precision Positive Linear Voltage Regulation.
  • 0.5V Dropout at 1A.
  • Guaranteed Reverse Input/ Output Voltage Isolation with Low Leakage.
  • Low Quiescent Current Irrespective of Load.
  • Adjustable Output Voltage Version.
  • Fixed Versions for 3.3V and 5V Outputs.
  • Logic Shutdown Capability.
  • Short Circuit Power Limit of 3%.
  • VIN.
  • Current Limit.
  • Remote Load Voltage for Accurate Load Regulation.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC381-3-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UCC281-5
Manufacturer Unitrode
File Size 274.07 KB
Description Low Dropout 1 Ampere Linear Regulator
Datasheet download datasheet UCC281-5 Datasheet

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Other Datasheets by Unitrode

Part Number Description
UCC281-3 Low Dropout 1 Ampere Linear Regulator
UCC281-ADJ Low Dropout 1 Ampere Linear Regulator
UCC2807-1 Programmable Maximum Duty Cycle PWM Controller
UCC2807-2 Programmable Maximum Duty Cycle PWM Controller
UCC2807-3 Programmable Maximum Duty Cycle PWM Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
UCC281-3/-5/-ADJ UCC381-3/-5/-ADJ Low Dropout 1 Ampere Linear Regulator Family FEATURES • Precision Positive Linear Voltage Regulation • 0.5V Dropout at 1A • Guaranteed Reverse Input/ Output Voltage Isolation with Low Leakage • Low Quiescent Current Irrespective of Load • Adjustable Output Voltage Version • Fixed Versions for 3.3V and 5V Outputs • Logic Shutdown Capability • Short Circuit Power Limit of 3% • VIN • Current Limit • Remote Load Voltage for Accurate Load Regulation DESCRIPTION The UCC381-3/-5/-ADJ family of positive linear series pass regulators is tailored for low drop out applications where low quiescent power is important. Fabricated with a BiCMOS technology ideally suited for low input to output differential applications, the UCC381 will pass 1A while requiring only 0.