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iP2003

Features:

T

Synchronous Buck

Multiphase Optimized LGA Power Block

Integrated Power Semiconductors, Drivers & Passives

Description

The iP2003 is a fully optimized solution for high current synchronous buck multiphase applications.

Board space and design time are greatly reduced because most of the components required for each

phase of a typical discrete-based multiphase circuit are integrated into a single 11mm x 11mm x 2.2mm

power block. The only additional components required for a complete multiphase converter are a PWM IC, the

external inductors, and the input and output capacitors.

iPOWIR technology offers designers an innovative board space saving solution for applications

requiring high power densities. iPOWIR technology eases design for applications where component integration

offers benefits in performance and functionality. iPOWIR technology solutions are also optimized internally for

layout, heat transfer and component selection.

iP2003 Power Block

11/18/04

iP2003 Internal Block Diagram

MOSFET

Driver with

dead time

control

V

IN

V

SW

PGND

PRDY

ENABLE

PWM

V

DD

SGND

MOSFET

Driver with

dead time

control

V

IN

V

SW

PGND

PRDY

ENABLE

PWM

V

DD

SGND

PD- 96922A

Pin #

Pin Name Pin Function

1

Supply voltage for the internal circuitry.

2

ENABLE

When set to logic level high, internal circuitry

of the device is enabled. When set to logic

level low, the PRDY pin is forced low, the

Control and Sychronous switches are turned

off, and the supply current is less than 10µA.

3

PWM

TTL-level input signal to MOSFET drivers.

4

PRDY

Power Ready - This pin indicates the status of

is less than 4.4V (typ.). When ENABLE is

this output is driven high. This output has a

10mA source and 1mA sink capability.

5, 7

PGND

Power Ground - connection to the ground of

bulk and filter capacitors.

6

Switching Node - connection to the output

inductor.

8

Input voltage for the DC-DC converter.