SC900844JVK datasheet(4/118 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

900844

INTERNAL BLOCK DIAGRAM

PIN DESCRIPTION

The Type Column indicates the maximum average current through each ball assigned to the different nodes, 500 mA

maximum for HIPWR, 300 mA maximum for MDPWR, and 100 mA maximum for LOPWR

Table 1. 900844 Pin Description

Node Name

Type

I/O

Rating

# of

Balls

BGA Location

Pin Description

VCC - (0.65 V-1.2 V) / 3.5 A VID CPU BUCK with External FETs

PVINCC

HIPWR

4.8 V

L5, L7

Gate drivers power supply input

HSCCGT

HIPWR

4.8 V

K2, K4

High side FET gate drive

LSCCGT

HIPWR

4.8 V

H2, H4

Low side FET gate drive

PGNDCC

HIPWRGND

J1, J3

Local ground for internal circuitry

VOUTFBCC

SGNL

4.8 V

Output voltage sensing input and negative current sense

terminal

SWFBCC

SGNL

3.6 V

Switch node feedback

CSPCC

SGNL

3.6 V

Positive current sense terminal

VNN - (0.65 V-1.2 V) / 1.6 A VID CPU BUCK with External FETs

PVINNN

HIPWR

4.8 V

Gate drivers power supply input

HSNNGT

HIPWR

4.8 V

High side FET gate drive

LSNNGT

HIPWR

4.8 V

Low side FET gate drive

PGNDNN

HIPWRGND

Local ground for internal circuitry

VOUTFBNN

SGNL

4.8 V

Output voltage sensing input and negative current sense

terminal

SWFBNN

SGNL

3.6 V

Switch node feedback

CSPNN

SGNL

3.6 V

N11

Positive current sense terminal

VDDQ - 1.8 V / 1.3 A BUCK

PVINDDQ

HIPWR

4.8 V

P6, P8, R5, R7

Power supply input

SWDDQ

HIPWR

4.8 V

N1, N3, P2, P4

Switch node

PGNDDDQ

HIPWRGND

M6, M8, N5, N7

Power ground

FBDDQ

SGNL

3.6 V

Output voltage feedback input

V21 - 2.1 V / 1.0 A BUCK

PVIN21

HIPWR

4.8 V

W1, W3, W5

Power supply input

SW21

HIPWR

4.8 V

V2, V4, V6

Switch node

PGND21

HIPWRGND

U1, U3, U5

Power ground

FB21

SGNL

3.6 V

Output voltage feedback input

V15 - 1.5 V (or 1.6 V) / 1.5 A BUCK

PVIN15

HIPWR

4.8 V

AB2, AB4, AB6

Power supply input

SW15

HIPWR

4.8 V

AA1, AA3, AA5

Switch node

PGND15

HIPWRGND

Y2, Y4, Y6

Power ground

FB15

SGNL

3.6 V

Output voltage feedback input

SC900844JVK Datasheet(PDF) 4 Page - Freescale Semiconductor, Inc

SC900844JVK Datasheet(HTML) 4 Page - Freescale Semiconductor, Inc

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