FAN1589 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – 2.7A, 1.2V Low Dropout Linear Regulator for VRM8.5

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FAN1589
2.7A, 1.2V Low Dropout Linear Regulator for VRM8.5
Features
• Fast transient response
• Low dropout voltage at up to 2.7A
• Load regulation: 0.05% typical
• Trimmed current limit
• On-chip thermal limiting
• Standard TO-220, TO-263, TO-263 center cut and
TO-252 (DPAK) packages
Applications
• A GTL+ bus supply for VRM 8.5
• Low voltage logic supply
• Post regulator for switching supply
Description
The FAN1589 is a low dropout three-terminal regulator with
2.7A output current capability. This device has been optimized
for VTT bus termination, where transient response and mini-
mum input voltage are critical. The FAN1589 offers fixed
1.2V with 2.7A current capability for a GTL+ bus VTT
termination.
Current limit is trimmed to ensure specified output current and
controlled short-circuit current. On-chip thermal limiting pro-
vides protection against any combination of overload and
ambient temperature that would create excessive junction
temperatures.
The FAN1589 is available in the industry-standard TO-220,
TO-263, TO-263 center cut and TO-252 (DPAK) power
packages.
Typical Application
VIN = 3.3V
+
10µF
FAN1589
VIN
V_OUT
GND
1.2V at 2.7A
+
22µF
REV. 1.0.3 2/25/02