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Revision 1.07

2 - 10

AS1357

4 Pinout

Pin Assignments

Figure 2. Pin Assignments (Top View – Not To Scale)

Pin Descriptions

Table 1. Pin Descriptions

12-pin QFN 4x4

Pin Number

16-pin QFN 3x3

Pin Number

Pin Name

Description

21

EN1

116

EN2

12

15

EN3

9

11, 12

GND

Negative Supply Voltage.

Note: All GND pins must be connected together externally.

13

-

GND

Negative Supply Voltage. This pin is the exposed pad.

Note: All GND pins must be connected together externally.

10

13

REF

Analog Reference Voltage.

Note: Connect to 100nF capacitor during normal operation.

3, 8

2, 3, 4, 9, 10

Positive Supply Voltage.

45

Regulated Analog Output Voltage 1

56

Regulated Analog Output Voltage 2

67

Regulated Analog Output Voltage 3

7,11

8, 14

N/C

Not connected.

AS1357

12-pin QFN

4x4

GND

EN3

N/C

REF

10

6

9

(Exposed Pad)

8

N/C

7

5

4

11

12

EN2

1

EN1

2

3

GND

13

GND

EN3

N/C

REF

13

6

12

10

5

14

15

EN1

1

2

4

AS1357

16-pin QFN

3x3

3

7

N/C

8

9

GND

11

EN2

16