B1586T-3.3中文资料

B1586

Pin Connection

Ordering Information

Devices Package Temp.

B1586T TO-220 0 °C to 70 °C B1586S TO-263 0 °C to 70 °C B1586D TO-252 0 °C to 70 °

C

Description

The Bay Linear B1586 is Monolithic low power 1.5A 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 B1586 Outstanding features include full power usage up to 1.5Amp of load current internal current limiting and thermal shutdown. Other fixed versions are also available consult with factory.

The B1586 is offered in 3-pin TO-220 & TO-263 packages compatible with other 3 terminal regulators. For 5A Low dropout Regulator refer to the B1585 data sheet. Features

? Adjustable Output Down to 1.2V

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

? Output Current of 1.5A

? Low Dropout Voltage 1.1V Typ. ? Current & Thermal Limiting

?

Standard 3-Terminal Low Cost TO-220, D 2, D Packages

?

Similar to industry Standard LT1086

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 fro Pentium Processor ?

Battery Charger

B1586

Absolute Maximum Rating

Parameter Symbol Value Unit

Maximum Input Voltage V IN 7 V

Power Dissipation

P O Internally Limited W

Thermal Resistance Junction to Case θJC 3 Thermal Resistance Junction to Ambient

θJA 50

°C/W Operating Junction Temperature Range Control Section Power Transistor T J

0 to 125 0 to 150 Storage Temperature Range T STG -65 to 150 Lead Temperature (Soldering 10 Sec.)

T LEAD

260

°C

Electrical Characteristics

(V IN = 4.75V to 5.25V; I O = 10mA to 1.5Amp, unless otherwise specified) Parameter Symbol Conditions

MIN TYP MAX UNIT

1.485 1.515 0

0

2.475 2.525

0

2.970

3.030

0

3.267 3.333

0

4.950

5.050

Output Voltage

V O

0

V 1.238 1.262 Reference Voltage V ref V IN <7V, 1.5V

1.230 1.250 1.270 V Line Regulation (1) REG (line) I O = 10mA, V IN =5V, T= 25 °C

0.04 0.2 0.08 0.40 Load Regulation (1) REG (LOAD)

I O = 10mA, V IN =5V, T= 25 °C

%

1.0 Dropout Voltage V D T= 25 °C

Over Temperature 1.1 1.3

V Minimum load Current

I min 5.0 10 mA Current Limit

I S (V in -V out )=3V 1.5 2.3 A Ground Pin Current I Q V IN =5V 6 10 mA Temperature Stability T S

I O = 10mA, V IN =5V 0.5 %

Thermal Regulation

T= 25 °C, 30ms pulse

0.003 %/W Ripple Rejection R A T= 25 °C, V IN =5V

60 80 dB Thermal Resistance

-

TO-220 Junction to Tab Junction to Ambient DD Package Junction to Tab Junction to Ambient 3.0 60 3.0 60 3.0 60 3.0 60

°C/W

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

Advance Information- These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations, computer simulations and/ or initial prototype evaluation.

Preliminary Information- These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges.

The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different applications. Customer’s technical experts must validate all operating parameters including “ Typical” for each customer application.

LIFE SUPPORT AND NUCLEAR POLICY

Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without the specific written consent of Bay Linear President.