LDO40L

Active

400 mA, 38 V low-dropout regulator, with 45 µA quiescent current

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Product overview

Description

The LDO40L is a 400 mA LDO regulator, designed for being used in severe automotive environments. Low quiescent current makes it suitable for applications permanently connected to battery. This feature is especially critical when electronic modules remain in active mode when ignition is off.
The LDO40L embeds protection functions, such as: current limit and thermal shutdown.
The extended input voltage range, low drop voltage and low quiescent current features make it suitable also for low power industrial and consumer applications.
  • All features

    • Low quiescent current: typ. 45 µA at no load
    • Wide input voltage operating range up to 38 V
    • Low startup voltage: 3.5 V
    • Output current up to 400 mA
    • Output voltage options: Adj from 2.5 V and fixed, 3.0, 3.3, 5.0 and 8.5 V
    • Output voltage accuracy:
      • ± 1% typ. @ 25 °C
      • ± 3% (including line, load and temperature variation)
    • Ultra low-dropout:
      • 36 mV @ 100 mA load current
      • 140 mV @ 400 mA load current
    • High PSRR: 70 dB @ 1 kHz
    • Very low noise: 20 µVRMS/VOUT
    • Protection features: current limitation, thermal shutdown
    • -40 °C to +125 °C operating temperature range
    • Package: DFN6 (3x3) (wettable flanks)
    • AEC-Q100 qualified (grade 1)

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Related Applications

Industrial

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STMicroelectronics - LDO40L

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDO40LPU33RY
Active
DFN6 3x3 Automotive Ecopack2
LDO40LPU50RY
Active
DFN6 3x3 Automotive Ecopack2
LDO40LPURY
Active
DFN6 3x3 Automotive Ecopack2

LDO40LPU33RY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LDO40LPU50RY

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LDO40LPURY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Output Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
LDO40LPU33RY Available at 4 distributors

Distributor availability ofLDO40LPU33RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 936 1 Order Now
RS COMPONENTS EUROPE 165 1 Order Now
AVNET AMERICA 3000 0 Order Now
Farnell Element14 EUROPE 137 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

936

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

165

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

137

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 3.3 0.682 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

0.4

Unit Price (US$):

0.682

Country of Origin:

THAILAND

LDO40LPU50RY Available at 3 distributors

Distributor availability ofLDO40LPU50RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2591 1 Order Now
RS COMPONENTS EUROPE 2585 1 Order Now
Farnell Element14 EUROPE 160 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

2591

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2585

Min.Order

1

Region

EUROPE Order Now

Farnell Element14

Stock

160

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 5 0.62 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

0.4

Unit Price (US$):

0.62

Country of Origin:

THAILAND

LDO40LPURY Available at 2 distributors

Distributor availability ofLDO40LPURY

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 375 1 Order Now
Newark Element14 AMERICA 187 0 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

RS COMPONENTS

Stock

375

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

187

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-07-26

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 - 0.682 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

0.4

Unit Price (US$):

0.682

Country of Origin:

THAILAND

LDO40LPU33RY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.682 / 1k

Distributor availability ofLDO40LPU33RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 936 1 Order Now
RS COMPONENTS EUROPE 165 1 Order Now
AVNET AMERICA 3000 0 Order Now
Farnell Element14 EUROPE 137 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

936

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

165

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

137

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.4

Budgetary Price (US$)* / Qty

0.682 / 1k

Country of Origin

THAILAND

LDO40LPU50RY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.62 / 1k

Distributor availability ofLDO40LPU50RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2591 1 Order Now
RS COMPONENTS EUROPE 2585 1 Order Now
Farnell Element14 EUROPE 160 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

2591

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2585

Min.Order

1

Region

EUROPE Order Now

Farnell Element14

Stock

160

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.4

Budgetary Price (US$)* / Qty

0.62 / 1k

Country of Origin

THAILAND

LDO40LPURY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.682 / 1k

Distributor availability ofLDO40LPURY

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 375 1 Order Now
Newark Element14 AMERICA 187 0 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

RS COMPONENTS

Stock

375

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

187

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-07-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

1

Output Current (A) (nom)

0.4

Budgetary Price (US$)* / Qty

0.682 / 1k

Country of Origin

THAILAND

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