ADP5022

Rev. A | Page 7 of 28

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

TOP VIEW

(BALL SIDE DOWN)

Not to Scale

1

A

B

C

D

23

4

BALL A1

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.