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Low Dropout Linear Regulator

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uP8815

3A Ultra Low Dropout Linear Regulator for DDR4 Memory VTT Termination

Datasheets PDF

General Description

The uP8815 is an ultra low dropout regulator for Double Date Rate (DDR) termination system. It is specifically designed for low input voltage and low external component count systems. The uP8815 is capable of sinking/sourcing up to 3A output current, providing fast load transient and only requires a minimum 3x10uF ceramic output capacitor. The uP8815 supports a remote sensing function and all power requirements for DDR VTT bus termination, DDR4 especially. Other features include an EN signal that can be used to discharge VTT, thermal protection, bi-directional current limit protection. The uP8815 is available in a WDFN3x3-10L package.

Pin Configuration & Typical Application Circuit

DFN3x3-10L

Feature

  • VIN Input Voltage Range: 1V to 3.6V
  • VCNTL Input Voltage: 2.9V to 5.5V
  • Power Good to Monitor Output Regulation
  • 10mA Source/Sink Buffer Reference
  • Output Voltage Remote Sense
  • Low External Component
  • Discharge MOSFETs at VOUT Shutdown
  • Enable Control
  • Up to 3A Source/Sink Current
  • Support DDR3 and Low Power DDR3/DDR4
  • Stable with Pure MLCC as Output Cap
  • RoHS Compliant and Halogen Free

Application

  • DDR Memory Termination
  • Desktop PCs, Notebook Computers, and Server