ST1L05

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Very low quiescent BiCMOS voltage regulator

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Product overview

Description

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.
  • All 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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Quality and Reliability

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**:

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Output Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
ST1L05BPUR Available at 5 distributors

Distributor availability ofST1L05BPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6065 1 Order Now
RS COMPONENTS EUROPE 2780 1 Order Now
Newark Element14 AMERICA 165 0 Order Now
MOUSER WORLDWIDE 4107 1 Order Now
Farnell Element14 EUROPE 5403 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

6065

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2780

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

165

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4107

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5403

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-28

Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 0 125 - 0.405 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1.3

Unit Price (US$):

0.405

Country of Origin:

MALAYSIA

ST1L05CPU33R Available at 5 distributors

Distributor availability ofST1L05CPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6785 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 5094 1 Order Now
Farnell Element14 EUROPE 2792 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

6785

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5094

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2792

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-28

Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 0 125 3.3 0.405 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1.3

Unit Price (US$):

0.405

Country of Origin:

MALAYSIA

ST1L05APU33R Available at 2 distributors

Distributor availability ofST1L05APU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1501 1 Order Now
ANGLIA Live EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2021-02-27

Distributor Name

DIGIKEY

Stock

1501

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-27

Active
EAR99 NEC Tape And Reel DFN6 3x3 0 125 3.3 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1.3

Unit Price (US$):

0.298

Country of Origin:

MALAYSIA

ST1L05DPUR Available at 3 distributors

Distributor availability ofST1L05DPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1275 1 Order Now
AVNET AMERICA 4500 0 Order Now
ANGLIA Live EUROPE 4500 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

1275

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

4500

Min.Order

0

Region

AMERICA Order Now

ANGLIA Live

Stock

4500

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-28

Buy Direct
Active
EAR99 NEC Tape And Reel DFN8 4x4 0 125 - 0.405 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1.3

Unit Price (US$):

0.405

Country of Origin:

MALAYSIA

ST1L05PU25R Available at 2 distributors

Distributor availability ofST1L05PU25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2945 1 Order Now
MOUSER WORLDWIDE 3000 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

2945

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-28

Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 0 125 2.5 0.405 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1.3

Unit Price (US$):

0.405

Country of Origin:

MALAYSIA

ST1L05BPUR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.405 / 1k

Distributor availability ofST1L05BPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6065 1 Order Now
RS COMPONENTS EUROPE 2780 1 Order Now
Newark Element14 AMERICA 165 0 Order Now
MOUSER WORLDWIDE 4107 1 Order Now
Farnell Element14 EUROPE 5403 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

6065

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2780

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

165

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4107

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5403

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-28

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

0

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Budgetary Price (US$)* / Qty

0.405 / 1k

Country of Origin

MALAYSIA

ST1L05CPU33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.405 / 1k

Distributor availability ofST1L05CPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6785 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 5094 1 Order Now
Farnell Element14 EUROPE 2792 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

6785

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5094

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2792

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-28

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

0

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Budgetary Price (US$)* / Qty

0.405 / 1k

Country of Origin

MALAYSIA

ST1L05APU33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofST1L05APU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1501 1 Order Now
ANGLIA Live EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2021-02-27

Distributor Name

DIGIKEY

Stock

1501

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

0

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

MALAYSIA

ST1L05DPUR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.405 / 1k

Distributor availability ofST1L05DPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1275 1 Order Now
AVNET AMERICA 4500 0 Order Now
ANGLIA Live EUROPE 4500 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

1275

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

4500

Min.Order

0

Region

AMERICA Order Now

ANGLIA Live

Stock

4500

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-28

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 4x4

Operating Temperature (°C)

(min)

0

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Budgetary Price (US$)* / Qty

0.405 / 1k

Country of Origin

MALAYSIA

ST1L05PU25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.405 / 1k

Distributor availability ofST1L05PU25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2945 1 Order Now
MOUSER WORLDWIDE 3000 1 Order Now

Distributor reported inventory date: 2021-02-28

Distributor Name

DIGIKEY

Stock

2945

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-28

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

0

(max)

125

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Budgetary Price (US$)* / Qty

0.405 / 1k

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