Features

• Fast transient response

• Low dropout voltage at up to 5A

• Load regulation: 0.05% typical

• Trimmed current limit

• On-chip thermal limiting

• Standard TO-220 and TO-263 packages

Applications

• Pentium® Pro and Pentium II GTL+ bus supply

• Low voltage logic supply

• Battery-powered circuitry

• Post regulator for switching supply

Typical Applications

Description

The RC1585 and RC1585-1.5 are low dropout three-terminal

regulators with 5A output current capability. These devices have been

optimized for low voltage applications including VTT bus termination,

where transient response and minimum input voltage are critical. The

RC1585 is ideal for low voltage microprocessor applications requiring

a regulated output from 1.5V to 3.6V with an input supply of 5V or

less. The RC1585-1.5 offers fixed 1.5V with 5A current capabilities

for GTL+ bus VTT termination.

Current limit is trimmed to ensure specified output current and

controlled short-circuit current. On-chip thermal limiting provides

protection against any combination of overload and ambient

temperature that would create excessive junction temperatures.

The RC1585 series regulators are available in the industry-standard

TO-220 and TO-263 power packages

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