ADPL42010ABRCZ datasheet(9/28 Pages) AD

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Data Sheet

ADPL42010A

analog.com

Rev. 0

9 of 28

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

Figure 2. 3-Lead SOT-223 Pin Configuration

Figure 3. 8-Lead SO Pin Configuration

Pin Descriptions

Table 3. Pin Descriptions

NAME

DESCRIPTION

3-Lead

SOT-223

8-Lead

OUT

Regulator Outpu Pin. The output supplies power to the load. A

minimum output capacitor of 10µF is required to prevent

oscillations. Larger output capacitors are required for

applications with large transient loads to limit peak voltage

transients. For more details on output capacitance and reverse

output characteristics, see the Applications Information

section.

SENSE/ADJ

Sense Pin. For fixed voltage versions of the ADPL42010A

(ADPL42010A-1.5/ADPL42010A-1.8/ADPL42010A-

2.5/ADPL42010A-3.3), the SENSE pin is the input to the error

amplifier. Optimum regulation is obtained at the point where

the SENSE pin is connected to the OUT pin of the regulator. In

critical applications, small voltage drops are caused by the

resistance (RP) of PC traces between the regulator and the load.

These may be eliminated by connecting the SENSE pin to the

output at the load, as shown in Figure 4. Note that the voltage

drop across the external PC traces add to the dropout voltage

FRONT VIEW

TAB IS

GND

OUT

ST PACKAGE

3-LEAD PLASTIC SOT-223

TJMAX = 125°C,

θJA = 42°C/W TO 56°C/W,

θJC = 15°C/W

GND

TOP VIEW

OUT

S8 PACKAGE

8-LEAD PLASTIC SO

*PIN 2 = SENSE FOR ADPL42010A-1.5/ADPL42010A-1.8/

ADPL42010A-2.5/ADPL42010A-3.3

PIN 2 = ADJ FOR ADPL42010A

TJMAX = 125°C, θJA = 55°C/W TO 69°C/W, θJC = 35°C/W

GND

SHDN

SENSE/ADJ*

GND

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