ADP1706/ADP1707/ADP1708

Rev. 0 | Page 6 of 20

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

SS

8

SENSE

7

OUT

6

OUT

5

ADP1706

TOP VIEW

(Not to Scale)

ADP1706

TOP VIEW

(Not to Scale)

PIN 1

INDICATOR

1

EN

2

GND

3

IN

4

IN

7 SENSE

8SS

6OUT

5OUT

Figure 4. 8-Lead SOIC, ADP1706

Figure 5. 8-Lead LFCSP, ADP1706

TRK

8

SENSE

7

OUT

6

OUT

5

ADP1707

TOP VIEW

(Not to Scale)

PIN 1

INDICATOR

1

EN

2

GND

3

IN

4

IN

7SENSE

8TRK

6OUT

5OUT

TOP VIEW

(Not to Scale)

ADP1707

Figure 6. 8-Lead SOIC, ADP1707

Figure 7. 8-Lead LFCSP, ADP1707

ADJ

8

SENSE

7

OUT

6

OUT

5

ADP1708

TOP VIEW

(Not to Scale)

PIN 1

INDICATOR

1

EN

2

GND

3

IN

4

IN

7 SENSE

8 ADJ

6OUT

5OUT

ADP1708

TOP VIEW

(Not to Scale)

Figure 8. 8-Lead SOIC, ADP1708

Figure 9. 8-Lead LFCSP, ADP1708

Table 4. Pin Function Descriptions

ADP1706

Pin No.

ADP1707

Pin No.

ADP1708

Pin No.

Mnemonic

Description

1

1

1

EN

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

regulator. For automatic startup, connect EN to IN.

2

2

2

GND

Ground.

3, 4

3, 4

3, 4

IN

Regulator Input Supply. Bypass IN to GND with a 4.7 μF or greater capacitor.

5, 6

5, 6

5, 6

OUT

Regulated Output Voltage. Bypass OUT to GND with a 4.7 μF or greater capacitor.

7

7

7

SENSE

Sense. Measures the actual output voltage at the load and feeds it to the error

amplifier. Connect SENSE as close as possible to the load to minimize the effect

of IR drop between the regulator output and the load.

8

N/A

N/A

SS

Soft Start. A capacitor connected to this pin determines the soft start time.

N/A

8

N/A

TRK

Track. The output follows the voltage applied at the TRK pin. See the Theory of

Operation section for a more detailed description.

N/A

N/A

8

ADJ

Adjust. A resistor divider from OUT to ADJ sets the output voltage.

EP

EP

EP

EP

The exposed pad on the bottom of the SOIC package and the LFCSP package. EP

enhances thermal performance and is electrically connected to GND inside the

package. User is recommended to connect EP to the ground plane on the board.