B1585S-3.0 Просмотр технического описания (PDF) - Bay Linear

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производитель

B1585S-3.0

5.0A Low Dropout Voltage Regulator

Bay Linear 

Basic Adjustable Regulator

B1585

V OU

T

BAY

B1585

I

ADJ

50µA

VREF

VOUT = VREF * ( 1 + R2/R1) + IADJ * R2

V OU

T

R1

R2

Fig.2 Basic Adjustable Regulator

Output Voltage

Output Voltage

Consider Figure 2. The resistance R1 generates a constant current flow, normally the specified load current of

10mA. This current will go through the resistance R2 to set the overall output voltage. The current IADJ is very

small and constant. Therefore its contribution to the overall output voltage is very small and can generally be

ignored

Load Regulation

Parasitic line resistance can degrade load regulation. In order not to affect the behavior of the regulator, it is best to

connect directly the R1 resistance from the resistor divider to the case,

and not to the load. For the same reason, it is best to connect the resistor R2 to the Negative side of the load.

VOUT

BAY

B1585

RP Parasitic Line

Resistance

Connect R1 to

Case of Regulator

R1

RL

R2

Connect R2 to Load

Fig.3 Basic Adjustable Regulator

Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556

www.baylinear.com

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