Datasheet EZ1084CM-3.3TR, EZ1084CM-2.5TR, EZ1084CM-1.5TR, EZ1084BCT, EZ1084BCMTR Datasheet (Semtech Corporation)

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

5.0 AMP POSITIVE
VOLTAGE REGULATOR

EZ1084

EZ1084B

June 7, 1999

1

DESCRIPTION

The EZ1084 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1084 series provides excellent
regulation over variations in line, load and temperature.

Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. The EZ1084 has both fixed and
adjustable voltage options, while the EZ1084B is
adjustable only for cost sensitive applications. These
devices are available in the popular TO-220 and TO­263 packages.

TEL:[phone] FAX:[phone] WEB:http://www.semtech.com

APPLICATIONS

•

High current microprocessor supplies

•

Post regulators

PIN CONFIGURATIONS

FEATURES

•

Low dropout performance,

1.3V max. for EZ1084,

1.45V max. for EZ1084B

•

Full current rating over line and temperature

•

Fast transient response

•

±2% total output regulation over line, load

and temperature (±2.4% for EZ1084B)

•

Adjust pin current max 90µA over temperature

•

Fixed/adjustable output voltage (EZ1084)

•

Line regulation typically 0.015%

•

Load regulation typically 0.05%

•

TO-220 and TO-263 packages

Parameter Symbol Maximum Units

Input Supply Voltage

V

IN

7V

Power Dissipation

P

D

Internally

Limited

W

Thermal Resistance
Junction to Case
TO-220
TO-263

θ

JC

2.5

2.5

°C/W

Thermal Resistance
Junction to Ambient
TO-220
TO-263

θ

JA

50
60

°C/W

Operating Junction
Temperature Range

T

J

0 to 125 °C

Storage
Temperature Range

T

STG

-65 to 150 °C

Lead Temperature
(Soldering) 10 Sec

T

LEAD

260 °C

BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS

ORDERING INFORMATION

DEVICE PACKAGE V

OUT

VOLTS

EZ1084CM-X.X
EZ1084BCM

TO-263

(2)

See Note (1)

1.30 to 5.7

EZ1084CT-X.X
EZ1084BCT

TO-220 See Note (1)

1.30 to 5.7

Notes:
(1) Where X.X denotes voltage options. Available
voltages are: 1.5V, 2.5V and 3.3V. Leave blank for
adjustable version (1.3 to 5.7V). Contact factory for
additional voltage options.
(2) Add suffix ‘TR’ for tape and reel (TO-263).

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

5.0 AMP POSITIVE
VOLTAGE REGULATOR

EZ1084

EZ1084B

June 7, 1999

2

ELECTRICAL CHARACTERISTICS

Test Conditions Test Limits

Parameter Symbol V

IN

I

O

T

J

(5)

Min Typ Max Units

Output Voltage

(1)

V

O

5V 0mA 25°C 0.99lVOlVO1.01lVOlV

EZ1084-X.X O.T. 0.98lV

O

lVO1.02lVOl

Reference Voltage

(1)

V

REF

5V 10mA 25°C 1.238 1.250 1.262 V
EZ1084 O.T. 1.225 1.250 1.275
Reference Voltage

(1)

V

REF

5V 10mA 25°C 1.233 1.250 1.267 V
EZ1084B O.T. 1.220 1.250 1.280
Line Regulation

(1)

REG

(LINE)

10mA 25°C 0.015 0.2 %

O.T. 0.035 0.2

Load Regulation

(1)

REG

(LOAD)

5V 25°C 0.05 0.3 %

O.T. 0.2 0.4

Dropout Voltage

(2)

V

D

25°C 1 V
EZ1084, EZ1084-X.X O.T. 1.10 1.30
EZ1084B 1.20 1.45
Current Limit I

CL

O.T. 5.0 7.5 A

Quiescent Current
Fixed Voltage Version

I

Q

5V O.T. 12 14 mA

Temperature Coefficient T

C

O.T. 0.005 %/°C

Adjust Pin Current I

ADJ

25°C 55 µA

O.T. 90

Adjust Pin Current
Change

∆

I

ADJ

O.T. 0.2 5 µA

Temperature Stability T

S

5V 0.5A O.T. 0.5 %

Minimum Load Current
Adj Voltage Version

I

O

5V O.T. 5 10 mA

RMS Output Noise

(3)

V

N

25°C 0.003 %V

O

Ripple Rejection Ratio

(4)

R

A

5V 5.0A O.T. 60 72 dB

Unless otherwise specified, Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 5.0A;
Fixed V

IN

= 4.75 to 7.0V and Fixed IO = 0 mA to 5.0A

NOTES:

(1) Low duty cycle pulse testing with Kelvin connections required.
(2) ∆V

OUT

, ∆V

REF

= 1%

(3)

Bandwidth of 10 Hz to 10 kHz.

(4) 120 Hz input ripple (C

ADJ

for ADJ = 25µF).

(5) Over Temp. (O.T.) = over specified operating junction temperature range.

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

5.0 AMP POSITIVE
VOLTAGE REGULATOR

EZ1084

EZ1084B

June 7, 1999

3

TYPICAL APPLICATIONS

FIXED VOLTAGE REGULATOR

(1)(2)

ADJUSTABLE VOLTAGE REGULATOR

(1)(2)

EZ1084/EZ1084B

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

5.0 AMP POSITIVE
VOLTAGE REGULATOR

EZ1084

EZ1084B

June 7, 1999

4

DEVICE OUTLINE - TO-220

DEVICE OUTLINE - TO-263