uP8809数据手册uPI(UBIQ)中文资料规格书

描述 Description

The uP8809 is an ultra low dropout linear regulatorspecifically designed to provide termination voltage for DDRmemory system. Designed with low on-resistanceNMOSFETs, this device is capable of sinking/sourcing upto 2A output current.

This device works with dual supplies, a control input forthe control circuitry and a power input as low as 1.0V forproviding current to output. The output voltage is tightlyregulated to track reference voltage input within 20mVvariation with fast to line/load transient.

Other features include chip shutdown function, soft-start,on-chip thermal protection, and bi-directional current limitprotection. The uP8809 is available in PSOP-8L, FSOP-8L, WDFN3x3-8L packages with very low thermal resistance.

特性 Features

• Generate Termination Voltage for DDR Memory Interface
• Output Voltage Traces Reference Input.
• Capable of Sinking/Sourcing 2A.
• Integrated Low RDS(ON) MOSFETs.
• Excellent Line and Load Regulation.

• Low External Part Count.
• Bidirectional Current Limit Protection.
• On-Chip Thermal Protection.
• Support Pure MLCC.
• RoHS Compliant and Halogen Free.

应用 Application

• Desktop PCs, Notebooks, and Workstations.
• Graphic Cards.
• Low Voltage Logic Supplies.
• Microprocessor and Chipset Supplies.
• Split Plane Microprocessor Supplies.
• Advanced Graphics Cards Supplies.
• SoundCards and Auxiliary Power Supplies.
• SMPS Post Regulators.