LDLN050

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500 mA, high performance low dropout linear regulator

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Product overview

Description

The LDLN050 is a 500 mA LDO regulator, designed to be used in several environments. The LDLN050 has a very low-resistance pass element (PMOS) that is even very fast during the turn-on.

Thanks to its low-noise design, the LDLN050 can be used to supply noise sensitive circuits such as sensors, MCUs and wireless ICs in industrial applications.

The LDO low current consumption (typically 48 µA) is also used on battery-supplied applications.

On the adjustable version, the output voltage can be set to any desired value between 1.25 V and 6 V. Fixed voltage versions, between 1.0 V and 4.3 V (with 0.1 V step) can be provided upon request.

On the fixed voltage versions only, an external capacitor can be connected to CNR pin to further reduce the noise on the regulated output voltage.

The LDLN050 is available in DFN8 (3 x 3 mm) package.

  • All features

    • Input voltage range: 2.7 V to 6.5 V
    • Very low output voltage noise: 13 µVRMS/VOUT
    • Low quiescent current: 48 µA typical
    • 500 mA guaranteed output current
    • Fast start-up time: 50 µs
    • High PSRR: 65 dB at 100 Hz
    • -40 °C to 125 °C ambient operative temperature range
    • Very low dropout: 190 mV at max. IOUT
    • Adjustable (from 1.25 V to 6 V) or fixed output voltage on request (from 1.0 V to 4.3 V)
    • Stable with low ESR capacitor: min. 2 µF
    • Current limit and thermal protections
    • DFN8 (3 x 3 mm) standard for industrial

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STMicroelectronics - LDLN050

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDLN050PU18R
Preview
VFDFPN 8L 3X3 0.85 PITCH 0.65 Industrial Ecopack2
LDLN050PU25R
Preview
VFDFPN 8L 3X3 0.85 PITCH 0.65 Industrial Ecopack2
LDLN050PU33R
Active
VFDFPN 8L 3X3 0.85 PITCH 0.65 Industrial Ecopack2
LDLN050PUR
Preview
VFDFPN 8L 3X3 0.85 PITCH 0.65 Industrial Ecopack2

LDLN050PU18R

Package:

VFDFPN 8L 3X3 0.85 PITCH 0.65

Material Declaration**:

Marketing Status

Preview

Package

VFDFPN 8L 3X3 0.85 PITCH 0.65

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDLN050PU25R

Package:

VFDFPN 8L 3X3 0.85 PITCH 0.65

Material Declaration**:

Marketing Status

Preview

Package

VFDFPN 8L 3X3 0.85 PITCH 0.65

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDLN050PU33R

Package:

VFDFPN 8L 3X3 0.85 PITCH 0.65

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFDFPN 8L 3X3 0.85 PITCH 0.65

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDLN050PUR

Package:

VFDFPN 8L 3X3 0.85 PITCH 0.65

Material Declaration**:

Marketing Status

Preview

Package

VFDFPN 8L 3X3 0.85 PITCH 0.65

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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Packing Type
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ECCN (US)
ECCN (EU)
Operating temperature (°C)
Grade
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
min
max
LDLN050PU25R
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Distributor availability of LDLN050PU25R

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LDLN050PUR
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LDLN050PU33R
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Distributor availability of LDLN050PU33R

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LDLN050PU18R
Available at distributors

Distributor availability of LDLN050PU18R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

LDLN050PU25R Preview

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LDLN050PU25R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.5

LDLN050PUR Preview

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LDLN050PUR

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.5

LDLN050PU33R Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LDLN050PU33R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.5

Distributor Name

Distributor reported inventory date:

LDLN050PU18R Preview

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LDLN050PU18R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.5

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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