B1587J-3.0 View Datasheet(PDF) - Bay Linear
Part Name
Description
MFG CO.
'B1587J-3.0' PDF : 8 Pages View PDF
Basic Adjustable Regulator
V OU
T
BAY
B1587
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
Output Voltage
Consider Figure 2. The resistance R1 generates a
constant current flow, normally the specified load
current of 10mA
B1587
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
B1587
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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