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REV. 1.0.5 11/10/03

Pentium is a registered trademark of Intel Corporation.

Features

• Fast transient response

• Low dropout voltage at up to 3A

• Load regulation: 0.05% typical

• Trimmed current limit

• On-chip thermal limiting

• Standard TO-220, TO-263, TO-263 center cut,

and TO-252 packages

Applications

• Low voltage logic supply

• Post regulator for switching supply

• 12V to 5V linear regulator

• 3.3V to 1.5V linear regulator

Description

The FAN1587A, FAN1587A-1.5, and FAN1587A-3.3 are low

dropout three-terminal regulators with 3A output current capa-

bility. These devices have been optimized for low voltage

response and minimum input voltage are critical. The

FAN1587A is ideal for low voltage microprocessor applica-

tions requiring a regulated output from 1.5V to 3.6V with an

input supply of 12V or less. The FAN1587A-1.5 offers fixed

tion. The FAN1587A-3.3 offers fixed 3.3V current capability

for logic IC operation.

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 FAN1587A, FAN1587A-1.5, and FAN1587A-3.3 are

available in the industry-standard TO-220, TO-263, TO-263

center cut, and TO-252 (DPAK) power packages.

Typical Applications

22

µF

22

µF

22

µF

R1

124

Ω

R2

768

Ω

22

µF

9V at 3A

+

+

ADJ

FAN1587A

3.3V at 3A

+

+

GND

FAN1587A-3.3

65-1587-16

FAN1587A

3A Adjustable/Fixed Low Dropout Linear Regulator