zl2004 Intersil Corporation, zl2004 Datasheet

zl2004

Manufacturer Part Number

zl2004

Description

Adaptive Digital Dc-dc Controller With Current Sharing

Manufacturer

Intersil Corporation

Datasheet

1.ZL2004.pdf (42 pages)

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Adaptive Digital DC-DC Controller with Current Sharing

Description

The ZL2004 is a digital DC-DC controller designed to

work with the ZL1505 MOSFET driver IC. Current

sharing allows multiple devices to be connected in

parallel to source loads with very high current

demands.

algorithms improve power conversion efficiency across

the entire load range. Zilker Labs Digital-DC™

technology enables a blend of power conversion

performance and power management features.

The ZL2004 is designed to be a flexible building block

for DC power and can be easily adapted to designs

ranging from a single-phase power supply operating

from a 4.5 V input to a multi-phase supply operating

from a 12V input. The ZL2004 eliminates the need for

complicated power supply managers as well as

numerous external discrete components.

All operating features can be configured by simple pin-

strap/resistor selection or through the SMBus™ serial

interface. The ZL2004 uses the PMBus™ protocol for

communication with a host controller and the Digital-

DC bus for communication between other Zilker Labs

devices.

Adaptive

VMON

SYNC

SALRT

V (0,1)

DDC

performance

MGN

SDA

SCL

EN PG

VOLATILE

MEMORY

Figure 1. Block Diagram

SA (0,1)

NON-

MANAGEMENT

POWER

optimization

Data Sheet

VTRK

CONTROLLER

XTEMP

ILIM

MONITOR

PWM

ADC

VSEN+/-

CFG

1-888-INTERSIL or 1-888-468-3774

SGND DGND

CURRENT

V25

SHIFTER

SENSE

SENSOR

LEVEL

LDO

TEMP

VR VDD

Features

Power Conversion

•

Power Management

•

Applications

•

Efficient synchronous buck controller

Adaptive performance optimization algorithms

4.5 V to 14 V input range

0.54 V to 4 V output range (with margin)

± 1% V

Fast load transient response

Current sharing and phase interleaving

Digitally adjustable current sense range

Snapshot™ parameter capture

RoHS compliant (5 x 5 mm) QFN package

Digital soft start/stop

Precision delay and ramp-up

Power good/enable

Voltage tracking, sequencing and margining

Voltage/current/temperature monitoring

SMBus communication (PMBus compliant)

Output voltage and current protection

Internal non-volatile memory (NVM)

Servers / storage equipment

Telecom / datacom equipment

Power supplies (memory, DSP, ASIC, FPGA)

PWML

PWMH

ISENA

ISENB

February 18, 2009

All other trademarks mentioned are the property of their respective owners

Intersil (and design) is a registered trademark of Intersil Americas Inc.

OUT

set-point accuracy

ZL2004

FN6846.0

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