Table 5-1. Pin Functions (continued)

PIN

I/O

TYPE

DESCRIPTION

CONNECTION IF

NOT USED

NO.

NAME

17

GPIO7

I/O

Digital

Primary function: General Purpose Input/Output signal. When configured as

an output pin, it can be included as part of the power sequencer output signal

to enable an external regulator.

Input: Ground,

Output: Floating

I

Digital

Alternative programmable function: nERR_MCU - System error count down

input signal from the MCU.

Floating

O

Analog

Alternative programmable function: REFOUT - Buffered bandgap output.

Floating

I

Analog

Alternative programmable function: VMON1 - External voltage monitoring

input.

Ground

I

Digital

Alternative programmable function: nSLEEP1 or nSLEEP2, which are the

sleep request signals for the device to go to lower power states (Active Low).

Ground

I

Digital

Alternative programmable function: WKUP1 or WKUP2, which are the wake-

up request signals for the device to go to higher power states.

Ground

18

VCCA

—

Power

Supply voltage for internal LDO. VCCA and PVIN_Bx pins must be connected

together in the application and be locally bypassed.

System supply

19

AGND1

—

Ground

Ground

Ground

20

VOUT_LDO

—

Power

LDO regulator filter node. LDO is used for internal purposes.

—

21

AGND2

—

Ground

Ground

Ground

22

FB_B4

—

Analog

Output voltage feedback (positive) for BUCK4.Alternatively ground feedback

for BUCK3 in dual phase configuration.

Ground

23

FB_B3

—

Analog

Output voltage feedback (positive) for BUCK3.

Ground

24

VIO

—

Power

Supply voltage for selected digital outputs.

Ground

25

GPIO8

I/O

Digital

Primary function: General Purpose Input/Output signal. When configured as

an output pin, it can be included as part of the power sequencer output signal

to enable an external regulator.

Input: Ground,

Output: Floating

I/O

Digital

Alternative programmable function: SCLK_SPMI - Multi-PMIC SPMI serial

interface clock signal. This pin is an output pin for the master SPMI device,

and an input pin for the slave SPMI device.

Ground

I

Analog

Alternative programmable function: VMON2 - External voltage monitoring

input.

Ground

I

Digital

Alternative programmable function: nSLEEP1 or nSLEEP2, which are the

sleep request signals for the device to go to lower power states (Active Low).

Ground

I

Digital

Alternative programmable function: WKUP1 or WKUP2, which are the wake-

up request signals for the device to go to higher power states.

Ground

26

GPIO9

I/O

Digital

Primary function: General Purpose Input/Output signal. When configured as

an output pin, it can be included as part of the power sequencer output signal

to enable an external regulator.

Input: Ground,

Output: Floating

I/O

Digital

Alternative programmable function: SDATA_SPMI - Multi-PMIC SPMI serial

interface bidirectional data signal

Floating

O

Digital

Alternative programmable function: PGOOD - Programmable Power Good

indication pin.

Floating

I

Digital

Alternative programmable function: SYNCCLKIN - External switching clock

input for Buck regulators.

Ground

I

Digital

Alternative programmable function: nSLEEP1 or nSLEEP2, which are the

sleep request signals for the device to go to lower power states (Active Low).

Ground

I

Digital

Alternative programmable function: WKUP1 or WKUP2, which are the wake-

up request signals for the device to go to higher power states.

Ground

27

SW_B3

—

Analog

BUCK3 switch node.

Floating

28

PVIN_B3

—

Power

Power input for BUCK3. The separate power pins PVIN_Bx are not connected

together internally – PVIN_Bx and VCCA pins must be connected together in

the application and be locally bypassed.

System supply

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LP8762-Q1

SNVSCV7 – OCTOBER 2024

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