CLM2815AT datasheet(4/6 Pages) CALOGIC

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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.

CORPORATION

CLM2815

CORPORATION

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

FIGURE 3. BASIC ADJUSTABLE REGULATOR

1U-24

CLM2815

R 1

R 2

OUT

R PARASITIC LINE

RESISTANCE

CONNECT R

TO CASE OF

REGULATOR

CONNECT

R TO

LOAD

R L

FIGURE 2. BASIC ADJUSTABLE REGULATOR

1U-23

CLM2815

R 1

R 2

OUT

REF

ADJ

) + I

ADJ

(1 + R

1/R2

= V

REF

OUT

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