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www.fairchildsemi.com
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, TO-263 and TO-263 center cut packages
Applications
Pentium
class GTL+ bus supply
Low voltage logic supply
Post regulator for switching supply
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
V
TT
bus termination, where transient response and mini-
mum 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 capabili-
ties for GTL+ bus V
TT
termination.
Current limit is trimmed to ensure specified output current
and controlled short-circuit current. On-chip thermal limit-
ing provides protection against any combination of overload
and ambient temperature that would create excessive junc-
tion temperatures.
The RC1585 series regulators are available in the industry-
standard TO-220, TO-263 and TO-263 center cut power
packages.
Typical Applications
V
IN = 3.3V
10
μ
F
10
μ
F
22
μ
F
22
μ
F
1.5V at 5A
124
24.9
+
+
V
IN
ADJ
V
OUT
RC1585
V
IN = 3.3V
1.5V at 5A
+
+
V
IN
GND
V
OUT
RC1585-1.5
65-1585-01a
RC1585
5A Adjustable/Fixed Low Dropout Linear Regulator
Rev. 1.0.4
Pentium is a registered trademark of Intel Corporation.