LD39100

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Education

1 A low quiescent current low noise voltage regulator

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Product overview

Description

The LD39100 provides 1 A maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV. The device is stable with ceramic capacitors on the input and output. The ultra-low dropout voltage, low quiescent current and low-noise features make it suitable for low power battery-powered applications. Power supply rejection is 70 dB at low frequency and starts to roll off at 10 kHz.
Enable logic control function puts the LD39100 in shutdown mode, allowing a total current consumption lower than 1 µA. The device also includes short-circuit constant current limiting and thermal protection.
LD39100 is available also in AEC-Q100 qualified version, in the DFN6 (3x3 mm) with wettable flank package.
  • All features

    • AEC-Q100 qualified
    • Input voltage from 1.5 to 5.5 V
    • Ultra-low dropout voltage (200 mV typ. at 1 A load)
    • Very low quiescent current (20 µA typ. at no load, 200 µA typ. at 1 A load, 1 µA max. in off mode)
    • Very low-noise with no bypass capacitor (30 µ VRMS at VOUT = 0.8 V)
    • Output voltage tolerance: ±2.0% at 25 °C
    • 1 A guaranteed output current
    • Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step and adjustable from 0.8 
    • Logic-controlled electronic shutdown
    • Stable with ceramic capacitors COUT = 1 µF
    • Internal current and thermal limit
    • DFN6 (3x3 mm) package
    • Temperature range: -40 °C to 125 °C

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LD39100

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD39100PU12R
Active
DFN6 3x3 Industrial Ecopack2
LD39100PU12RY
Active
DFN6 3x3 Automotive Ecopack2
LD39100PU18RY
Active
DFN6 3x3 Automotive Ecopack2
LD39100PU25RY
Active
DFN6 3x3 Automotive Ecopack2
LD39100PU33R
Active
DFN6 3x3 Industrial Ecopack2
LD39100PU33RY
Active
DFN6 3x3 Automotive Ecopack2
LD39100PUR
Active
DFN6 3x3 Industrial Ecopack2
LD39100PURY
Active
DFN6 3x3 Automotive Ecopack2

LD39100PU12R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39100PU12RY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LD39100PU18RY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LD39100PU25RY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LD39100PU33R

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39100PU33RY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LD39100PUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39100PURY

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
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
LD39100PU12R Available at 2 distributors

Distributor availability ofLD39100PU12R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 130 0 Buy from Distributor
MOUSER WORLDWIDE 48 1 Buy from Distributor

Distributor reported inventory date: 2022-01-21

Distributor Name

AVNET

Stock

130

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

48

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-21

Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 1.2 0.66 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.66

Country of Origin:

MALAYSIA

LD39100PURY No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 - 0.88 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.88

Country of Origin:

THAILAND

LD39100PU33RY No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 3.3 0.88 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.88

Country of Origin:

THAILAND

LD39100PU25RY Available at 3 distributors

Distributor availability ofLD39100PU25RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 818 1 Buy from Distributor
AVNET AMERICA 3000 0 Buy from Distributor
MOUSER WORLDWIDE 8494 1 Buy from Distributor

Distributor reported inventory date: 2022-01-21

Distributor Name

DIGIKEY

Stock

818

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

8494

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-21

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 2.5 0.88 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.88

Country of Origin:

THAILAND

LD39100PU18RY No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 1.8 0.88 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.88

Country of Origin:

THAILAND

LD39100PU12RY No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 1.2 0.88 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.88

Country of Origin:

THAILAND

LD39100PUR Available at 1 distributors

Distributor availability ofLD39100PUR

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 1 1 Buy from Distributor

Distributor reported inventory date: 2022-01-21

Distributor Name

COMPEL

Stock

1

Min.Order

1

Distributor reported inventory date: 2022-01-21

Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 - 0.66 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.66

Country of Origin:

MALAYSIA

LD39100PU33R No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN6 3x3 -40 125 3.3 0.66 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

1

Unit Price (US$):

0.66

Country of Origin:

MALAYSIA

LD39100PU12R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.66 / 1k

Distributor availability ofLD39100PU12R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 130 0 Buy from Distributor
MOUSER WORLDWIDE 48 1 Buy from Distributor

Distributor reported inventory date: 2022-01-21

Distributor Name

AVNET

Stock

130

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

48

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.66 / 1k

Country of Origin

MALAYSIA

LD39100PURY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.88 / 1k

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)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.88 / 1k

Country of Origin

THAILAND

LD39100PU33RY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.88 / 1k

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)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.88 / 1k

Country of Origin

THAILAND

LD39100PU25RY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.88 / 1k

Distributor availability ofLD39100PU25RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 818 1 Buy from Distributor
AVNET AMERICA 3000 0 Buy from Distributor
MOUSER WORLDWIDE 8494 1 Buy from Distributor

Distributor reported inventory date: 2022-01-21

Distributor Name

DIGIKEY

Stock

818

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

8494

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.88 / 1k

Country of Origin

THAILAND

LD39100PU18RY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.88 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.88 / 1k

Country of Origin

THAILAND

LD39100PU12RY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.88 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN6 3x3

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.88 / 1k

Country of Origin

THAILAND

LD39100PUR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.66 / 1k

Distributor availability ofLD39100PUR

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 1 1 Buy from Distributor

Distributor reported inventory date: 2022-01-21

Distributor Name

COMPEL

Stock

1

Min.Order

1

Distributor reported inventory date: 2022-01-21

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)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.66 / 1k

Country of Origin

MALAYSIA

LD39100PU33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.66 / 1k

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)

2

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.66 / 1k

Country of Origin

MALAYSIA

(*) 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