Datasheet

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
09885-002
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.