BAYLI B1582T-ADJ, B1582T-5, B1582T-3.3, B1582T-3.0, B1582J-3.0 Datasheet

Bay Linear

Inspire the Linear Power

4.0A Low Dropout Voltage Regulator		B1582
Adjustable & Fix Output

Description

The Bay Linear B1582 is Monolithic low power 4.0A Adjustable and fixed NPN voltage regulator that are easy to use with minimum external components. It is suitable for applications requiring a well-regulated positive output voltage with low input-output differential voltage requirements and output voltage 1.5V, 2.5V, 3.0V, 3.3V, or 5V.

The B1582 Outstanding features include full power usage up to 4.0Amp of load current internal current limiting and thermal shutdown. Other fixed versions are also available consult with factory.

The B1582 is offered in a 5-pin TO-220, & TO-263 packages compatible with other 5 terminal regulators. The B1582 is offer in a new LPDD (Low Profile TO-263) package from 4.47 mm (DD) thickness down to only 1.27 mm (LPDD) total thickness.

Features

•Adjustable Output Down to 1.2V

•Fixed Output Voltages 2.5V, 3.0V 3.3V, and 5.0V

•Output Current of 4.0A

•Low Dropout Voltage 700mV Typ.

•Current & Thermal Limiting

•Standard 3-Terminal Low Cost TO-220, D2 Packages & LPDD

•Similar to industry Standard CS1503/EZ1582/IRU1150

Applications

•3.3V to 2.5V for Pentium Processor

•SMPS Post Regulator

•High Efficiency “Green” Computer Systems

•High Efficiency Linear Power Supplies

•5V to 3.XXV for Pentium Processor

•3.3V to 2.7V Intel I740 Chip Set

Pin Connection

5 VPOWER
4	VCONTROL
3	OUTPUT
2	ADJ/GND.
1 SENSE
TO-263-5 Package

Ordering Information

Devices	Package	Temp.
B1582T	TO-220	0 °C to 70 °C
B1582S	TO-263	0 °C to 70 °C
B1582J	LPDD	0 °C to 70 °C

Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]

www.baylinear.com

B1582

Absolute Maximum Rating

Parameter

Symbol

Value

Unit

Maximum Input Voltage

VIN

7

V

Power Dissipation

PO

Internally Limited

W

Thermal Resistance Junction to Case

θJC

3

°C/W

Thermal Resistance Junction to

θJA

50

Ambient

Operating Junction

TJ

°C

Temperature Range

Control Section

0 to 125

Power Transistor

0 to 150

Storage Temperature Range

TSTG

-65 to 150

Lead Temperature (Soldering 10

TLEAD

260

Sec.)

Electrical Characteristics

(VIN = 2.05V to 5.25V; IO = 10mA to 4.0Amp, unless otherwise specified)

Parameter

Symbol

Conditions

MIN

TYP

MAX

UNIT

Output Voltage

VO

VCONT=4V, VPWR=2V

1.485

1.5

1.515

V

VCONT=3V, VPWR=2.3V, ILOAD=10mA to 4A

1.475

1.525

VCONT=5V, VPWR=3.3V

2.475

2.5

2.525

VCONT=4V, VPWR=3.3V, ILOAD=10mA to 4A

2.460

2.540

VCONT=5.5V, VPWR=3.5V

2.970

3.0

3.030

VCONT=4.5V, VPWR=3.8V, ILOAD=10mA - 4A

2.950

3.050

VCONT=5.8V, VPWR=3.8V

3.267

3.3

3.333

VCONT=4.8V, VPWR=4.1V, ILOAD=10mA - 4A

3.247

3.353

VCONT=7.5V, VPWR=5.5V

4.950

5.0

5.050

VCONT=6.5V, VPWR=5.8V, ILOAD=10mA4A

4.920

5.080

Reference Voltage

Vref

VCONT=2.75V, VPWR=2V, ILOAD=10mA

1.238

1.250

1.262

V

VCONT=2.7V, to 12V

1.230

1.270

VPWR=3.3V to 5.5V, ILOAD=10mA to 4A

Line Regulation (1)

REG (line)

IO = 10mA, VIN =5V, T= 25 °C

0.04

0.2

%

Load Regulation (1)

REG (LOAD)

IO = 10mA, VIN =5V, T= 25 °C

0.08

0.40

Dropout Voltage

VPWR-VOUT

VCONT=VOUT+2.5V, ILOAD=1.5A

0.26

0.38

VCONT=VOUT+2.5V, ILOAD=3.0A

0.50

0.70

V

VCONT=VOUT+2.5V, ILOAD=4.0A

0.70

0.80

Minimum load Current

Imin

5

10

mA

Current Limit

IS

(Vin-Vout)=3V

3

5

A

Ground Pin Current

IQ

VIN =5V

5

10

mA

Temperature Stability

TS

IO = 10mA, VIN =5V

0.5

%

Thermal Regulation

T= 25 °C, 30ms pulse

0.003

%/W

Ripple Rejection

RA

T= 25 °C, VIN =5V

60

75

dB

Thermal Resistance

-

TO-220

Junction to Tab

3.0

3.0

°C/W

Junction to Ambient

60

60

DD Package

Junction to Tab

3.0

3.0

Junction to Ambient

60

60

Note: Output Switch tests are performed under pulsed conditions to minimize power dissipation

Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]

www.baylinear.com

B1582

PIN DESCRIPTION

1.Sense = Allows Kelvin sense of VOUT at the load. (Positive side of the reference voltage of the device).

2.ADJ = Negative side of the reference voltage for the device. Adding a small bypass capacitor from the ADJ pin to ground will improve the transient response.

3.VOUT = Power output of the device.

4.VCTRL = Supply pin for the control circuitry of the device. The current flow into this pin will be about 1% of the output current. VCTRL must be between 1.0V and 1.3V greater than the output voltage for the device to regulate.

5.VIN = Output load current is supplied through this pin. VIN must be between 0.1V and 0.8V greater than the output voltage for the device to regulate.

BLOCK DIAGRAM

Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]

www.baylinear.com