LM10502

SNVS884B – AUGUST 2012 – REVISED MAY 2013

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PIN DESCRIPTIONS

Pin #

Pin Name

I/O

Type

Functional Description

E1

VIN_B1

I

P

Buck Switcher Regulator 1 - Power supply voltage input for power stage PFET.

E2

SW_B1

O

P

Buck Switcher Regulator 1 - Power Switching node, connect to inductor

D1

FB_B1

I

A

Buck Switcher Regulator 1 - Voltage output feedback for Buck Regulator 1

D3/E3

GND_B1

G

P

Buck Switcher Regulator 1 - Power ground for Buck Regulator

A1

VIN_B2

I

P

Buck Switcher Regulator 2 - Power supply voltage input for power stage PFET.

A2

SW_B2

O

P

Buck Switcher Regulator 2 - Power Switching node, connect to inductor

B1

FB_B2

I

A

Buck Switcher Regulator 2 - Voltage output feedback for Buck Regulator 2

A3/B3

GND_B2

G

P

Buck Switcher Regulator 2 - Power ground for Buck Regulator

E4

VIN

I

P

Power supply Input Voltage, must be present for device to work

C4

LDO_VIN

I

P

LDO Regulator - LDO input voltage can be only come from bump D4/E4 -VIN or if not used has to

be connected to C3-GND

B4

LDO_OUT

O

P

LDO Regulator - LDO output voltage can only be connected to bump A4 to provide VIN_IO or is not

used

A4

VIN_IO

P

A

Supply Voltage for Digital Interface can be supplied from any external supply or bump B4 -

LDO_OUT

A5

SPI_CS

I

D

SPI Interface – chip select

C5

SPI_DI

I

D

SPI Interface – serial data input

B5

SPI_DO

O

D

SPI Interface – serial data output

D5

SPI_CLK

I

D

SPI Interface – serial clock input

E5

RESET

I

D

Digital Input Control Signal to abort SPI transactions and resets the PMIC to default Voltages

D4

VCOMP

I

A

Analog Input for Comparator. Can only be connected to monitor E4-VIN

C1

IRQ

O

D

Digital Output of Comparator to signal Interrupt condition from Comparator input VIN

C3

GND

G

G

Ground. Connect to system Ground.

C2

GND

G

G

Ground. Connect to system Ground.

B2

NC

Do not connect

D2

NC

Do not connect

Absolute Maximum Ratings

(1) (2)

VIN, VCOMP

−0.3V to +6.0V

VIN_IO, VIN_B1, VIN_B2, SPI_CS, SPI_DI, SPI_CLK, SPI_DO, RESET, IRQ

−0.3V to VVIN

Junction Temperature (TJ-MAX)

150°C

Storage Temperature

−65°C to 150°C

ESD Rating

Human Body Model (HBM)

2.0kV

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and

associated test conditions, see the General Electrical Characteristics.

(2)

If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications.

4

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