LDO40L

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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)

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LDO40L

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Footprints

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3D models

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

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Part Number
Order from distributors
Order from ST
Marketing Status
Grade
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Unit Price (US$)
Country of Origin
min
max
LDO40LPU33RY Available at distributors

Distributor availability of LDO40LPU33RY

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Automotive EAR99 NEC Tape and Reel DFN6 3x3 -40 125

3.3

1

0.4

0.7161

THAILAND

LDO40LPU50RY Available at distributors

Distributor availability of LDO40LPU50RY

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Automotive EAR99 NEC Tape and Reel DFN6 3x3 -40 125

5

1

0.4

0.7161

THAILAND

LDO40LPURY Available at distributors

Distributor availability of LDO40LPURY

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Automotive EAR99 NEC Tape and Reel DFN6 3x3 -40 125

-

1

0.4

0.7161

THAILAND

LDO40LPU33RY Active

Package:
DFN6 3x3
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LDO40LPU33RY

Grade:

Automotive

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.4

Country of Origin:

THAILAND

LDO40LPU50RY Active

Package:
DFN6 3x3
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LDO40LPU50RY

Grade:

Automotive

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.4

Country of Origin:

THAILAND

LDO40LPURY Active

Package:
DFN6 3x3
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LDO40LPURY

Grade:

Automotive

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

-

Output Tolerance (typ):

1

Output Current (A) (nom):

0.4

Country of Origin:

THAILAND

Distributor Name

Distributor reported inventory date:

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(*) 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