PM6690 STMicroelectronics, PM6690 Datasheet

PM6690

Manufacturer Part Number

PM6690

Description

Three phase controller for Intel MVP7 CPU power supply

Manufacturer

STMicroelectronics

Datasheet

1.PM6690.pdf (3 pages)

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Features

■

Applications

■

Table 1.

March 2011

For further information contact your local STMicroelectronics sales office.

Order codes

4.5 V to 28 V input voltage range

0.25 V to 1.52 V output voltage range, 8 bit

SVID

IMVP7 spec compliant

Selectable PWM switching frequency,

maximum temperature, maximum currents,

boot voltage, VID transitions slew rate slow

Adjustable load line (LL), 1 NTC needed for LL

thermal compensation

Lossless current sense with inductor DCR or

accurate inductor current sense with R

CkCOT (clocked constant on time control loop)

allows almost fixed pwm switching frequency

Output voltage ripple compensation

Phases overlap in load transient

Tunable overshoot threshold (TOT) allows to

reduce overshoot in load transient

Skip mode allows to increase efficiency at light

load

Average OCP for all phases and cycle by cycle

OCP for each phase

Embedded gate drivers and bootstrap diodes

Adjustable VID transitions feature

Intel mobile

PM6690TR

PM6690

Device summary

Three phase controller for Intel MVP7 CPU power supply

CPU core IMVP7

(exposed pad)

QFN48 - 6x6

Package

Tape and reel

Packaging

Tray

SENSE

Doc ID 018638 Rev 1

Description

The PM6690 is a three phase step-down

switching controller with embedded gate drivers. It

has been designed to supply the CPU of the

Intel

MVP7 specifications.

The controller is based on clocked constant on-

time (CkCOT) architecture that allows nearly

constant switching frequency over load. The

controller ensures 120° phase shift PWM

operation when all the 3 phases are enabled.

compensates the DC voltage error due to the

output voltage ripple. Load line of the output

voltage can be adjusted by setting a resistor

divider and it can be thermally compensated by

using 1 NTC.

Current monitor IMON provides an analog output

current proportional to the CPU load current.

1NTC can be used to sense the maximum

temperature of the switching regulator and

provide the temperature information to the CPU

through SVID bus.

Adjustable VID transitions feature, TOT feature,

extremely low shutdown current and quiescent

current make the PM6690 a very flexible and

cost-effective solution for IMVP7 CPU power

supply.

An embedded integrator control loop

mobile platform, according with INTEL

(exposed pad)

QFN48 - 6x6

(7 x 7 mm)

QFN-48

PM6690

www.st.com

Data brief

1/3

Related parts for PM6690

PM6690 Summary of contents

Page 1

... CPU through SVID bus. Packaging Adjustable VID transitions feature, TOT feature, Tray extremely low shutdown current and quiescent current make the PM6690 a very flexible and Tape and reel cost-effective solution for IMVP7 CPU power supply. Doc ID 018638 Rev 1 PM6690 ...

Page 2

... Revision history Revision history Table 2. Document revision history Date 29-Mar-2011 2/3 Revision 1 Initial release Doc ID 018638 Rev 1 PM6690 Changes ...

Page 3

... PM6690 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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