LD56100

Active

1 A very low dropout fast transient ultra-low noise linear regulator

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Product overview

Description

The LD56100 high accuracy voltage regulator provides 1 A of current from an input voltage ranging from 1.8 V to 5.5 V, with a typical dropout voltage of 120 mV. It is available in DFN8 (1.2 x 1.6 mm) package, allowing the maximum space saving.
The device is stabilized with a ceramic capacitor on the output. The ultra-low drop voltage, low quiescent current and fast transient response, together with the internal soft-start circuit, make the LD56100 suitable for low power battery-operated applications.
An enable logic control function puts the LD56100 in shutdown mode allowing a total current consumption lower than 0.1 μA. Short-circuit protection with current limit foldback and thermal protection are also included.
  • All features

    • Input voltage from 1.8 to 5.5 V
    • Ultra-low dropout voltage (120 mV typ. at 1 A load and VOUT = 3.3 V)
    • Very low quiescent current (100 µA typ. at no-load, 0.03 µA typ. in off mode)
    • Output voltage tolerance: ± 1% from -40 °C to +85 °C
    • Ultra-low Noise: 13 µV RMS Noise from 10 Hz to 100 kHz at VOUT = 3.0 V
    • High PSRR (70 dB@1 kHz)
    • Wide range of output voltages available on request: from 1.0 V up to 5.0 V in 50 mV step
    • Logic-controlled electronic shutdown
    • Internal soft-start
    • Optional output voltage discharge feature
    • Compatible with ceramic capacitor COUT = 1 µF
    • Internal current limit foldback and thermal protections
    • Available in DFN8 (1.2x1.6 mm)
    • Operating temperature range: -40 °C to 125 °C

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STMicroelectronics - LD56100

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD56100DPU115R
Preview
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU125R
Preview
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU15R
Preview
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU175R
Preview
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU185R
Preview
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU18R
Active
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU25R
Active
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU28R
Active
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU30R
Active
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU31R
Preview
DFN8 1.2x1.6 Industrial Ecopack2
LD56100DPU33R
Active
DFN8 1.2x1.6 Industrial Ecopack2

LD56100DPU115R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Preview

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU125R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Preview

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU15R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Preview

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU175R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Preview

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU185R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Preview

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU18R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Active

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU25R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Active

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU28R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Active

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU30R

Package:

DFN8 1.2x1.6

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU31R

Package:

DFN8 1.2x1.6

Material Declaration**:

Marketing Status

Preview

Package

DFN8 1.2x1.6

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD56100DPU33R

Package:

DFN8 1.2x1.6

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN8 1.2x1.6

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
LD56100DPU175R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 1.75 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU18R Available at 2 distributors

Distributor availability ofLD56100DPU18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1195 1 Buy from Distributor
RS COMPONENTS EUROPE 1425 1 Buy from Distributor

Distributor reported inventory date: 2021-11-30

Distributor Name

DIGIKEY

Stock

1195

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1425

Min.Order

1

Distributor reported inventory date: 2021-11-30

Active
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 1.8 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU28R Available at 2 distributors

Distributor availability ofLD56100DPU28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1300 1 Buy from Distributor
MOUSER WORLDWIDE 800 1 Buy from Distributor

Distributor reported inventory date: 2021-11-30

Distributor Name

DIGIKEY

Stock

1300

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

800

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-11-30

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 2.8 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU15R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 1.5 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU115R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 1.15 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU33R Available at 1 distributors

Distributor availability ofLD56100DPU33R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 175 1 Buy from Distributor

Distributor reported inventory date: 2021-11-29

Distributor Name

RS COMPONENTS

Stock

175

Min.Order

1

Distributor reported inventory date: 2021-11-29

Active
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 3.3 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU30R Available at 3 distributors

Distributor availability ofLD56100DPU30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Buy from Distributor
RS COMPONENTS EUROPE 500 1 Buy from Distributor
Farnell Element14 EUROPE 5280 1 Buy from Distributor

Distributor reported inventory date: 2021-11-30

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

500

Min.Order

1

Farnell Element14

Stock

5280

Min.Order

1

Distributor reported inventory date: 2021-11-30

Active
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 3 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU125R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 1.25 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU185R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 1.8 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU31R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 3.1 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU25R No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN8 1.2x1.6 -40 85 - 0.186 / 1k
MORE INFO

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Unit Price (US$):

0.186

Country of Origin:

CHINA

LD56100DPU175R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

1.75

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

Distributor availability ofLD56100DPU18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1195 1 Buy from Distributor
RS COMPONENTS EUROPE 1425 1 Buy from Distributor

Distributor reported inventory date: 2021-11-30

Distributor Name

DIGIKEY

Stock

1195

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1425

Min.Order

1

Distributor reported inventory date: 2021-11-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

Distributor availability ofLD56100DPU28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1300 1 Buy from Distributor
MOUSER WORLDWIDE 800 1 Buy from Distributor

Distributor reported inventory date: 2021-11-30

Distributor Name

DIGIKEY

Stock

1300

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

800

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-11-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU15R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

1.5

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU115R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

1.15

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

Distributor availability ofLD56100DPU33R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 175 1 Buy from Distributor

Distributor reported inventory date: 2021-11-29

Distributor Name

RS COMPONENTS

Stock

175

Min.Order

1

Distributor reported inventory date: 2021-11-29

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU30R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

Distributor availability ofLD56100DPU30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Buy from Distributor
RS COMPONENTS EUROPE 500 1 Buy from Distributor
Farnell Element14 EUROPE 5280 1 Buy from Distributor

Distributor reported inventory date: 2021-11-30

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

500

Min.Order

1

Farnell Element14

Stock

5280

Min.Order

1

Distributor reported inventory date: 2021-11-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU125R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

1.25

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU185R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU31R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

3.1

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

LD56100DPU25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.186 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN8 1.2x1.6

Operating Temperature (°C)

(min)

-40

(max)

85

Output Voltage (V) (nom)

-

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.186 / 1k

Country of Origin

CHINA

(*) 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