Datasheet

ADP2125
Rev. A | Page 6 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC VIN
SW
FB GND
08774-005
1
A
B
C
2
BALL
A
1
INDICATOR
EXTCLK
TOP VIEW
BALL SIDE DOWN
BUMPS ON OPPOSITE SIDE
(Not to Scale)
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
A1 NC
No Connection. Any voltage applied to this pin must be between GND and VIN. Voltages above VIN or below GND
exceed the absolute maximum ratings and may cause damage to the part.
B1 SW Switch Node.
C1 FB
Feedback Divider Input. Connect the output capacitor from FB to GND to set the output voltage ripple and to
complete the control loop.
A2 VIN Power Supply Input.
B2 EXTCLK External Clock Enable Signal. The ADP2125 powers up when a clock signal (6 MHz to 27 MHz) is detected on this pin.
C2 GND Ground.