AIC1084

5A Low Dropout Positive Adjustable Regulator

Analog Integrations Corporation

4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC

www.analog.com.tw

DS-1084-03

Sep 21, 01

TEL: 886-3-5772500

FAX: 886-3-5772510

1

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Dropout Voltage 1.3V at 5A

Output Current.

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Fast Transient Response.

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Extremely Tight Line and Load Regulation.

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Current Limiting and Thermal Protection.

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Adjustable Output Voltage or Fixed 1.5V, 1.8V,

3.3V.

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Mother Board I/O Power Supplies.

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Microprocessor Power Supplies.

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High Current Regulator.

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Post Regulator for Switching Supply.

The AIC1084 is a low dropout three terminal

regulator with 5A output current capability. The

output voltage is adjustable with the use of a

resistor divider or fixed 3.3V. Dropout voltage is

guaranteed to be at maximum of 1.4V with the

maximum output current. Its low dropout voltage

and fast transient response make it ideal for low

voltage microprocessor applications. Current limit

and thermal protection provide protection against

any overload condition that would create excessive

junction temperatures.

C2

10µF

3.3V

5V

+

+

RF2

205Ω

1%

ADJ

AIC1084

C1

10µF

2

3

1

RF1

125Ω

1%

V

V

I

(1)

C1 needed if device is far away from filter

capacitors.

(2)

C2 required for stability.

Adjustable Voltage Regulator

C2

10µF

3.3V

5V

+

+

GND

C1

10µF

AIC1084-33

2

1

3

Fixed Voltage Regulator