ST1L05

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Very low quiescent BiCMOS voltage regulator

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  • The ST1L05 is a low drop linear voltage regulator, which supplies up to 1.3 A output current.

    The output voltage is fixed at 1.8 V, 2.5 V, 3.3 V and it is adjustable. It is available in three different versions with different pinouts.
    Thanks to BiCMOS technology, the quiescent current is controlled and maintained below 650 μA over the entire allowed junction temperature range. The ST1L05 is stable with low ESR output ceramic capacitors.
    Internal protection circuitry includes thermal protection with hysteresis and overcurrent limiting.
    The ST1L05 is suitable for data storage applications such as HDDs, where it can supply 3.3 V required by read channel and memory chips.
    The regulator is available in the small and thin DFN6 (3x3 mm) and DFN8 (4x4 mm) packages.

    Key Features

    • Fixed output voltage: 1.8 V, 2.5 V, 3.3 V and ADJ
    • Output voltage tolerance: ± 2% at 25 °C
    • Output current capability: 1.3 A
    • Very low quiescent current: max. 650 μA
    • Typ. dropout 0.3 V (@ IO = 1.3 A)
    • Enable function for B, C and D versions
    • Power Good function for B and D versions
    • Stable with low ESR ceramic capacitors
    • Thermal shutdown protection with hysteresis
    • Overcurrent protection
    • Operating junction temperature range: from 0 to 125 °C

Circuit Diagram

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Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
ECCN (US)
More info
Approximate Price (US$)* / Qty
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ST1L05BPUR DFN6 3x3 Tape And Reel - 2 1.3
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.89 / 1k Buy now Check Availability

Distributor availability ofST1L05BPUR

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3221 1 Order Now
RS COMPONENTS EUROPE 2950 1 Order Now
Newark Element14 AMERICA 666 0 Order Now
MOUSER WORLDWIDE 2630 1 Order Now
Farnell Element14 EUROPE 5806 1 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

3221

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2950

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

666

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2630

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5806

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

ST1L05CPU33R DFN6 3x3 Tape And Reel 3.3 2 1.3
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.89 / 1k Buy now Check Availability

Distributor availability ofST1L05CPU33R

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DIGIKEY WORLDWIDE 5040 1 Order Now
AVNET AMERICA 3000 0 Order Now
MOUSER WORLDWIDE 5441 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

5040

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5441

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

ST1L05APU33R DFN6 3x3 Tape And Reel 3.3 2 1.3
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.89 / 1k Buy now Check Availability

Distributor availability ofST1L05APU33R

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2459 1 Order Now
MOUSER WORLDWIDE 3553 1 Order Now
ANGLIA Live EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

2459

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3553

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

ST1L05DPUR DFN8 4x4 Tape And Reel - 2 1.3
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.87 / 1k Check Availability

Distributor availability ofST1L05DPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1534 1 Order Now
ANGLIA Live EUROPE 4500 1 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

1534

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

4500

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

ST1L05PU25R DFN6 3x3 Tape And Reel 2.5 2 1.3
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.89 / 1k No availability of distributors reported, please contact our sales office

ST1L05BPUR

Package

DFN6 3x3

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.89 / 1k

Distributor availability ofST1L05BPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3221 1 Order Now
RS COMPONENTS EUROPE 2950 1 Order Now
Newark Element14 AMERICA 666 0 Order Now
MOUSER WORLDWIDE 2630 1 Order Now
Farnell Element14 EUROPE 5806 1 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

3221

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2950

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

666

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2630

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5806

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.89 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05CPU33R

Package

DFN6 3x3

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.89 / 1k

Distributor availability ofST1L05CPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5040 1 Order Now
AVNET AMERICA 3000 0 Order Now
MOUSER WORLDWIDE 5441 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

5040

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5441

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.89 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05APU33R

Package

DFN6 3x3

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.89 / 1k

Distributor availability ofST1L05APU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2459 1 Order Now
MOUSER WORLDWIDE 3553 1 Order Now
ANGLIA Live EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

2459

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3553

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.89 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05DPUR

Package

DFN8 4x4

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.87 / 1k

Distributor availability ofST1L05DPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1534 1 Order Now
ANGLIA Live EUROPE 4500 1 Order Now

Distributor reported inventory date: 2020-03-31

Distributor Name

DIGIKEY

Stock

1534

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

4500

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-31

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.87 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05PU25R

Package

DFN6 3x3

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.89 / 1k

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.89 / 1k

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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      Very low quiescent BiCMOS voltage regulator
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      Very low quiescent BiCMOS voltage regulator

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST1L05APU33R
Active
DFN6 3x3 Industrial Ecopack2
ST1L05BPUR
Active
DFN6 3x3 Industrial Ecopack2
ST1L05CPU33R
Active
DFN6 3x3 Industrial Ecopack2
ST1L05DPUR
Active
DFN8 4x4 Industrial Ecopack2
ST1L05PU25R
Active
DFN6 3x3 Industrial Ecopack2

ST1L05APU33R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05BPUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05CPU33R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05DPUR

Package:

DFN8 4x4

Material Declaration**:

Marketing Status

Active

Package

DFN8 4x4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05PU25R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 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.

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