High efficiency monolithic synchronous step down regulator

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  • The device is a DC-DC monolithic regulator specifically designed to provide high efficiency. The L6928 supply voltage can be as low as 2 V to be used in single Li-Ion cell supplied applications. Output voltage can be selected by an external divider down to 0.6 V. Duty cycle can saturate 100% allowing low-dropout operation. The device is based on a 1.4 MHz fixed frequency, current mode architecture. Low consumption mode operation can be selected at light load conditions, allowing switching losses to be reduced. The L6928 is externally synchronized by a clock, which makes it useful in noise sensitive applications. Other features like Power Good, overvoltage protection, short-circuit protection and thermal shutdown (150 °C) are also present.

    Key Features

    • 2 V to 5.5 V battery input range
    • High efficiency: up to 95%
    • Internal synchronous switch
    • No external Schottky diode required
    • Extremely low quiescent current
    • 1 µA max. shutdown supply current
    • 800 mA max. output current
    • Adjustable output voltage from 0.6 V
    • Low-dropout operation: up to 100% duty cycle
    • Selectable low noise/low consumption mode at light load
    • Power Good signal
    • ± 1% output voltage accuracy
    • Current mode control
    • 1.4 MHz switching frequency
    • Externally synchronized from 1 MHz to 2 MHz
    • OVP
    • Short-circuit protection

Circuit Diagram

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Part Number
Package
Packing Type
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Quantity
ECCN (US)
Country of Origin
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L6928Q1TR DFN8 3x3 Tape And Reel
Active
0.954 10000 EAR99 PHILIPPINES Check Availability

Distributor availability ofL6928Q1TR

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AVNET AMERICA 4000 0 Order Now
ARROW AMERICA 2118 1 Order Now

Distributor reported inventory date: 2019-08-23

Distributor Name

AVNET

Stock

4000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2118

Min.Order

1

Region

AMERICA Order Now

Distributor reported inventory date: 2019-08-23

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L6928D013TR MSOP/TSSOP 8 Tape And Reel
Active
0.813 10000 EAR99 MALAYSIA Check Availability

Distributor availability ofL6928D013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3792 1 Order Now
MOUSER WORLDWIDE 2948 1 Order Now

Distributor reported inventory date: 2019-08-23

Distributor Name

DIGIKEY

Stock

3792

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2948

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-23

Buy now

L6928Q1TR

Package

DFN8 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.954*

Distributor availability ofL6928Q1TR

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 4000 0 Order Now
ARROW AMERICA 2118 1 Order Now

Distributor reported inventory date: 2019-08-23

Distributor Name

AVNET

Stock

4000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2118

Min.Order

1

Region

AMERICA Order Now

Distributor reported inventory date: 2019-08-23

Marketing Status

Active

Unit Price (US$)

0.954

Quantity

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

L6928D013TR

Package

MSOP/TSSOP 8

Packing Type

Tape And Reel

Unit Price (US$)

0.813*

Distributor availability ofL6928D013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3792 1 Order Now
MOUSER WORLDWIDE 2948 1 Order Now

Distributor reported inventory date: 2019-08-23

Distributor Name

DIGIKEY

Stock

3792

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2948

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-23

Marketing Status

Active

Unit Price (US$)

0.813

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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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Evaluation Tools

    • Part Number

      High efficiency monolithic synchronous step-down regulator based on the L6928D

      High-efficiency monolithic synchronous step-down regulator based on the L6928

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS4152
      High efficiency monolithic synchronous step-down regulator
      9.0
      562.04 KB
      PDF
      DS4152

      High efficiency monolithic synchronous step-down regulator

    • Description Version Size Action
      AN2115
      Designing an application with the L6928, high efficiency monolithic synchronous step-down regulator
      5.1
      819.62 KB
      PDF
      AN2115

      Designing an application with the L6928, high efficiency monolithic synchronous step-down regulator

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      Switching Converters (DC-DC) – Quick Reference Guide 1.0
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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6928D013TR
Active
MSOP/TSSOP 8 Industrial Ecopack2
L6928Q1TR
Active
DFN8 3x3 Industrial Ecopack2

L6928D013TR

Package:

MSOP/TSSOP 8

Material Declaration**:

Marketing Status

Active

Package

MSOP/TSSOP 8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6928Q1TR

Package:

DFN8 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN8 3x3

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.