Datasheet

ADP5022
Rev. C | Page 7 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
TOP VIEW
(BALL SIDE DOWN)
Not to Scale
08253-002
1
A
B
C
D
234
BALL
A
1
INDICATOR
VOUT3
VIN1
SW1
PGND1
VIN3
EN2
MODE
VOUT2
VDDA
VIN2
SW2
PGND2
AGND
EN1
EN3
VOUT1
Figure 3. Pin Configuration
Table 6. Pin Function Descriptions
Pin No. Mnemonic Description
A1 VOUT3 LDO Output Voltage and Sensing Input.
A2 AGND Analog Ground.
A3 VIN3 LDO Input Supply (VIN3 ≤ VIN1 = VIN2 = VDDA).
A4 VDDA Supply Input for the Housekeeping Block and UVLO Sensing.
B1 VIN1 Buck1 Input Supply (VIN1 = VIN2 = VDDA).
B2 EN1 Buck1 Activation. Set EN1 = high: turn on Buck1. Set EN1 = low: turn off Buck1.
B3 EN2 Buck2 Activation. Set EN2 = high: turn on Buck2. Set EN2 = low: turn off Buck2.
B4 VIN2 Buck2 Input Supply (VIN2 = VIN1 = VDDA).
C1 SW1 Buck1 Switching Node.
C2 EN3 LDO Activation. Set EN3 = high: turn on LDO. EN3 = low: turn off LDO.
C3 MODE Buck1/Buck2 Operating Mode: MODE = high: forced PWM operation. MODE = low: auto PWM/PSM operation.
C4 SW2 Buck2 Switching Node.
D1 PGND1 Dedicated Power Ground for Buck1.
D2 VOUT1 Buck1 Output Voltage Sensing Input.
D3 VOUT2 Buck2 Output Voltage Sensing Input.
D4 PGND2 Dedicated Power Ground for Buck2.