LD56050

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Design Win

500 mA ultra-low dropout linear regulator with bias supply

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Product overview

Description

The LD56050 is a high accuracy voltage regulator, which provides 0.5 A of current. It is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin, thus allowing an ultra low-drop performance even at very low input voltages.

It is available in DFN4 1.2 x 1.2 package, allowing the maximum space saving.

The device is stabilized with a small ceramic capacitor on the output. The ultra low-drop, low quiescent current and short circuit current foldback make the LD56050 suitable for low power battery-operated applications.

An enable logic control function puts the LD56050 in shutdown mode allowing a total current consumption lower than 0.1 µA. Thermal protection is also included.

  • All features

    • Input voltage from 0.8 to 5.5 V
    • Bias supply pin
    • Ultra low-dropout voltage (120 mV max. at 500 mA load)
    • Low ground current (27 μA typ. at no-load)
    • Output voltage tolerance: ± 1.5% overtemperature, 0.5% at 25 °C
    • 500 mA guaranteed output current
    • 50 mV output voltage step available from 0.8 V to 3.6 V
    • Logic-controlled electronic shutdown
    • Internal current limit with foldback
    • Thermal shutdown
    • Output active discharge function
    • Available in DFN4 1.2 x 1.2 mm package
    • Temperature range: -40 °C to 85 °C

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LD56050

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD56050DPU105R
Active
DFN4 1.2x1.2 Industrial Ecopack2
LD56050DPU110R
Active
DFN4 1.2x1.2 Industrial Ecopack2
LD56050DPU120R
Active
DFN4 1.2x1.2 Industrial Ecopack2
LD56050DPU150R
Evaluation
DFN4 1.2x1.2 Industrial Ecopack2

LD56050DPU105R

Package:

DFN4 1.2x1.2

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1.2x1.2

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56050DPU110R

Package:

DFN4 1.2x1.2

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1.2x1.2

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56050DPU120R

Package:

DFN4 1.2x1.2

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1.2x1.2

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56050DPU150R

Package:

DFN4 1.2x1.2

Material Declaration**:

Marketing Status

Evaluation

Package

DFN4 1.2x1.2

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

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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
LD56050DPU120R Available at distributors

Distributor availability of LD56050DPU120R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DFN4 1.2x1.2 -40 85

-

0.5

0.5

0.1732

CHINA

LD56050DPU105R Available at distributors

Distributor availability of LD56050DPU105R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DFN4 1.2x1.2 -40 85

-

0.5

0.5

0.1732

CHINA

LD56050DPU150R Available at distributors

Distributor availability of LD56050DPU150R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Evaluation
Industrial EAR99 NEC Tape and Reel DFN4 1.2x1.2 -40 85

-

0.5

0.5

0.1732

CHINA

LD56050DPU110R Available at distributors

Distributor availability of LD56050DPU110R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DFN4 1.2x1.2 -40 85

-

0.5

0.5

0.1732

CHINA

LD56050DPU120R Active

Package:
DFN4 1.2x1.2
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD56050DPU120R

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Output Voltage (V) (nom):

-

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.5

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

LD56050DPU105R Active

Package:
DFN4 1.2x1.2
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD56050DPU105R

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Output Voltage (V) (nom):

-

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.5

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

LD56050DPU150R Evaluation

Package:
DFN4 1.2x1.2
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD56050DPU150R

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Output Voltage (V) (nom):

-

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.5

Country of Origin:

CHINA

LD56050DPU110R Active

Package:
DFN4 1.2x1.2
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD56050DPU110R

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Output Voltage (V) (nom):

-

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.5

Country of Origin:

CHINA

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