MAX17000A Maxim Integrated Products, MAX17000A Datasheet

MAX17000A

Manufacturer Part Number

MAX17000A

Description

Complete DDR2 and DDR3 Memory Power-Management Solution

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX17000A.pdf (31 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX17000A

Manufacturer:

MAXIM/美信

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX17000AETG+T

Manufacturer:

MAXIM

Quantity:

2 744

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX17000AETG+TC00

Manufacturer:

WSI

Quantity:

Company:

BOSTOCK HK LIMITED

Part Number:

MAX17000AETG+TC00

Manufacturer:

MAXIM

Quantity:

1 344

Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX17000AETG+TC00

Manufacturer:

MAXIM/美信

Quantity:

20 000

Current page: 1 of 31
Download datasheet (806Kb)

www.DataSheet4U.com

The MAX17000A pulse-width modulation (PWM) con-

troller provides a complete power solution for notebook

DDR, DDR2, and DDR3 memory. It comprises a step-

down controller, a source-sink LDO regulator, and a ref-

erence buffer to generate the required VDDQ, VTT, and

VTTR rails.

The VDDQ rail is supplied by a step-down converter

using Maxim’s proprietary Quick-PWM™ controller. The

high-efficiency, constant-on-time PWM controller han-

dles wide input/output voltage ratios (low duty-cycle

applications) with ease and provides 100ns response

to load transients while maintaining a relatively constant

switching frequency. The Quick-PWM architecture cir-

cumvents the poor load-transient timing problems of

fixed-frequency current-mode PWMs while also avoid-

ing the problems caused by widely varying switching

frequencies in conventional constant-on-time and con-

stant-off-time PWM schemes. The controller senses the

current to achieve an accurate valley current-limit pro-

tection. It is also built in with overvoltage, undervoltage,

and thermal protections. The MAX17000A can be set to

run in three different modes: power-efficient SKIP

mode, low-noise forced-PWM mode, and standby

mode to support memory in notebook computer stand-

by operation. The switching frequency is programma-

ble from 200kHz to 600kHz to allow small components

and high efficiency. The VDDQ output voltage can be

set to a preset 1.8V or 1.5V, or be adjusted from 1.0V to

2.5V by an external resistor-divider. This output has 1%

accuracy over line-and-load operating range.

The MAX17000A includes a ±2A source-sink LDO reg-

ulator for the memory termination VTT rail. This VTT reg-

ulator has a ±5mV deadband that either sources or

sinks, ideal for the fast-changing load burst present in

memory termination applications. This feature also

reduces output capacitance requirements.

The VTTR reference buffer sources and sinks ±3mA,

providing the reference voltage needed by the memory

controller and devices on the memory bus.

The MAX17000A is available in a 24-pin, 4mm x 4mm,

thin QFN package.

19-4307; Rev 0; 10/08

Quick-PWM is a trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Notebook Computers

DDR, DDR2, and DDR3 Memory Supplies

SSTL Memory Supplies

________________________________________________________________ Maxim Integrated Products

General Description

Complete DDR2 and DDR3 Memory

Applications

Power-Management Solution

o SMPS Regulator (VDDQ)

o Source/Sink Linear Regulator (VTT)

o Soft-Start/Soft-Shutdown

o SMPS Power-Good Window Comparator

o VTT Power-Good Window Comparator

o Selectable Overvoltage Protection

o Undervoltage/Thermal Protections

o ±3mA Reference Buffer (VTTR)

+ Denotes a lead-free/RoHS-compliant package.

* EP = Exposed pad.

MAX17000AETG+

TOP VIEW

*EXPOSED PAD

Quick-PWM with 100ns Load-Step Response

Output Voltages—Preset 1.8V, 1.5V, or

1% V

26V Maximum Input Voltage Rating

Accurate Valley Current-Limit Protection

200kHz to 600kHz Switching Frequency

±2A Peak Source/Sink

Low-Output Capacitance Requirement

Output Voltages-Preset VDDQ/2 or REFIN

PART

Adjustable 1.0V to 2.5V

Adjustable from 0.5V to 1.5V

PGND1

OUT

AGND

SHDN

SKIP

Accuracy Over Line and Load

-40°C to +85°C

TEMP RANGE

Ordering Information

4mm x 4mm

THIN QFN

MAX17000A

Pin Configuration

*EP

24 Thin QFN-EP*

PIN-PACKAGE

Features

CSL

REFIN

VTTI

VTT

PGND2

Related parts for MAX17000A

Related keywords

MAX17000A datasheet
MAX17000A data sheet
MAX17000A pdf datasheet
MAX17000A component
MAX17000A part
MAX17000A distributor
MAX17000A RoHS
MAX17000A datasheet download