2 adjustable output power controller for notebook PC chipset power

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  • PM6680 is a dual step-down controller specifically designed to provide extremely high efficiency conversion, with lossless current sensing technique. The constant on-time architecture assures fast load transient response and the embedded voltage feed-forward provides nearly constant switching frequency operation. An embedded integrator control loop compensates the DC voltage error due to the output ripple. Pulse skipping technique increases efficiency at very light load. Moreover a minimum switching frequency of 33kHz is selectable to avoid audio noise issues. The PM6680 provides a selectable switching frequency, allowing three different values of switching frequencies for the two switching sections. The output voltages OUT1 and OUT2 can be adjusted from 0.9 V to 5.5 V and from 0.9 V to 3.3 V respectively.

    Key Features

    • Selectable pulse skipping at light loads
    • Latched OVP and UVP
    • 4mW maximum quiescent power
    • Selectable minimum frequency (33kHz) in pulse skip mode
    • Output voltage ripple compensation
    • Independent power good signals
    • Soft-start internally fixed at 2ms
    • Negative current limit
    • 6V to 28V input voltage range
    • 5V always voltage available deliver 100mA peak current
    • Adjustable output voltages
    • Lossless current sensing using low side MOSFETs RDS(on)
    • Soft output discharge
    • 1.237V ±1% reference voltage available

Circuit Diagram

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Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
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PM6680 QFN32 5x5 Tray
Active
1.199 10000 EAR99 MALAYSIA No availability of distributors reported, please contact our sales office
PM6680TR QFN32 5x5 Tape And Reel
Active
1.2 10000 EAR99 PHILIPPINES Check Availability

Distributor availability ofPM6680TR

Distributor Name
Region Stock Min. Order Third party link
FUTURE WORLDWIDE 3000 3000 Order Now
MOUSER WORLDWIDE 90 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

FUTURE

Stock

3000

Min.Order

3000

Region

WORLDWIDE Order Now

MOUSER

Stock

90

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-20

Buy now

PM6680

Package

QFN32 5x5

Packing Type

Tray

Unit Price (US$)

1.199*

Marketing Status

Active

Unit Price (US$)

1.199

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

PM6680TR

Package

QFN32 5x5

Packing Type

Tape And Reel

Unit Price (US$)

1.2*

Distributor availability ofPM6680TR

Distributor Name
Region Stock Min. Order Third party link
FUTURE WORLDWIDE 3000 3000 Order Now
MOUSER WORLDWIDE 90 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

FUTURE

Stock

3000

Min.Order

3000

Region

WORLDWIDE Order Now

MOUSER

Stock

90

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-20

Marketing Status

Active

Unit Price (US$)

1.2

Quantity

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS4674
      No Rsense dual step-down controller with adjustable voltages for notebook system power
      7.1
      2.85 MB
      PDF
      DS4674

      No Rsense dual step-down controller with adjustable voltages for notebook system power

    • Description Version Size Action
      AN2566
      PM6680 evaluation kit dual step-down controller with auxiliary voltages for notebook power system
      3.1
      627.57 KB
      PDF
      AN2566

      PM6680 evaluation kit dual step-down controller with auxiliary voltages for notebook power system

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
PM6680
Active
QFN32 5x5 Industrial Ecopack2
PM6680TR
Active
QFN32 5x5 Industrial Ecopack2

PM6680

Package:

QFN32 5x5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN32 5x5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

PM6680TR

Package:

QFN32 5x5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN32 5x5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.