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EZ1083

7.5A Positive

Voltage Regulator

POWER MANAGEMENT

Revision: December 21, 2005

The EZ1083 is a high performance positive voltage

regulator designed for use in applications requiring low

dropout performance at 7.5A. Additionally, the EZ1083

series provides excellent regulation over variations in line,

load and temperature.

Features include 1.4V dropout at 7.5 amps, fast

transient response, internal current limiting and thermal

shutdown protection of the output device. The EZ1083

has both fixed and adjustable voltage options. These

devices are available in the popular TO-220 package.

The EZ1083 is used in industrial systems to provide power

to microprocessors and chipsets. It is also used to power

ASICs in control systems for medical applications.

Low dropout performance: 1.4V max. for EZ1083

Full current rating over line and temperature

Fast transient response

Adjust pin current max 90µA over temperature

Fixed/adjustable output voltage (EZ1083)

Line regulation typically 0.015%

Load regulation typically 0.05%

±2% total output regulation over line, load

and temperature

TO-220 package. Available in WEEE and RoHS

compliant package

PC Motherboards

Microcontroller systems

Medical equipment

Low power microprocessor systems

Post regulation for switching power supplies

Telecommunication systems

Description

Features

Applications

Fixed Voltage Regulator

Adjustable Voltage Regulator

Typical Application Circuit

VIN > 4.75V

VOUT = 3.45V

VOUT = 3.3V

VIN > 4.75V

U1

EZ1083

1

2

3

ADJ

OUT

IN

TAB

+

C2

10uF Tant. Min.

R1

133 Ohm, 1%

+

C1

10uF Tant.

U1

EZ1083-3.3

1

2

3

GND

OUT

IN

TAB

R2

232 Ohm, 1%

+

C1

10uF Tant.

+

C2

10uF Tant. Min

Notes:

(1) C1 needed if device is far from filter capacitors

(2) C2 minimum value required for stability

2

R

I

1

R

2

R

1

V

V

ADJ

REF

OUT

•

+











 +

•

=