ADP122(Rev0) データシートの表示（PDF） - Analog Devices

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ADP122
(Rev.:Rev0)

5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator

Analog Devices 

ADP122/ADP123

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

VIN 1

5 VOUT

ADP122

GND 2 TOP VIEW

(Not to Scale)

EN 3

4 NC

NC = NO CONNECT

Figure 3. ADP122 Fixed Output Pin Configuration

VIN 1

5 VOUT

ADP123

GND 2 TOP VIEW

(Not to Scale)

EN 3

4 ADJ

Figure 4. ADP123 Adjustable Output Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

ADP122 ADP123 Mnemonic Description

1

1

VIN

Regulator Input Supply. Bypass VIN to GND with a capacitor of at least 1 μF.

2

2

GND

Ground.

3

3

EN

Enable Input. Drive EN high to turn on the regulator; drive EN low to turn off the regulator. For

automatic startup, connect EN to VIN.

N/A

4

ADJ

Output Voltage Adjust Input. Connect the midpoint of an external divider from VOUT to GND to this

pin to set the output voltage.

4

N/A

NC

Not Connected Internally.

5

5

VOUT

Regulated Output Voltage. Bypass VOUT to GND with a capacitor of at least 1 μF.

Rev. 0 | Page 6 of 20

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