ADP2147

Rev. 0 | Page 5 of 16

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VIN

EN

SW

GND VOUT

VSEL

TOP VIEW

(BALL SIDE DOWN)

Not to Scale

ADP2147

1

A

B

C

2

BALL A1

INDICATOR

Figure 2. Pin Configuration (Top View)

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

A1

VIN

Power Source Input. VIN is the source of the pFET high-side switch. Bypass VIN to GND with a 4.7 μF or greater

capacitor as close to the ADP2147 as possible.

B1

SW

Switch Node Output. SW is the drain of the P-channel MOSFET switch and N-channel synchronous rectifier.

Connect the output LC filter between SW and the output voltage.

C1

GND

Ground. Connect the input and output capacitors to GND.

A2

EN

Buck Activation. To turn on the buck, set EN to high. To turn off the buck, set EN to low.

B2

VSEL

Voltage Select Input for Simple Dynamic Voltage Scaling (DVS). Drive VSEL low to switch the VOUT pin to the

default voltage setting. Drive VSEL high to switch VOUT to the alternate voltage setting.

C2

VOUT

Output Voltage Sensing Input.