STLQ020

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200 mA ultra-low quiescent current LDO

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Product overview

Description

The STLQ020 is a 200 mA low-dropout voltage regulator, able to work with an input voltage ranging from 2 V to 5.5 V.

The typical dropout voltage at maximum load is 160 mV.

The ultra-low quiescent current, which is just 0.3 μA at no load, extends battery-life of applications requiring very long standby time.

Even though the device intrinsic consumption is ultra-low, STLQ020 is able to provide fast transient response and good PSRR performance, thanks to its adaptive biasing circuit.

Enable pin puts the STLQ020 in shutdown mode, reducing total current consumption to 5 nA.

The STLQ020 is designed to keep the quiescent current under control and at a low value also during dropout operation, helping to extend even more the operating time of battery- powered devices.

It also includes short-circuit constant-current limiting and thermal protection.

Several small package options are available.

  • All features

    • Operating input voltage range: 2 V to 5.5 V
    • Output current up to 200 mA
    • Ultra-low quiescent current:
      • 300 nA typ. at no load
      • 100 μA typ. at 200 mA load
    • Controlled Iq in dropout conditions
    • Very low-dropout voltage: 160 mV at 200 mA
    • Output voltage accuracy: 2% at room temperature, 3% in full temperature range
    • Output voltage versions: from 0.8 V to 4.5 V, with 50 mV step and adjustable
    • Logic-controlled electronic shutdown
    • Output discharge feature (optional)
    • Internal overcurrent and thermal protections
    • Temperature range: from -40 °C to +125 °C
    • Packages: DFN6-2x2, SOT323-5L, Flip-Chip4

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - STLQ020

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STLQ020C18R
Active
SOT323-5L Industrial Ecopack2
STLQ020C22R
Active
SOT323-5L Industrial Ecopack2
STLQ020C28R
Active
SOT323-5L Industrial Ecopack2
STLQ020C33R
Active
SOT323-5L Industrial Ecopack2
STLQ020J18R
Active
CSP P 0.4 mm Industrial N/A
STLQ020J25R
Active
CSP P 0.4 mm Industrial N/A
STLQ020J30R
Active
CSP P 0.4 mm Industrial N/A
STLQ020J33R
Active
CSP P 0.4 mm Industrial N/A
STLQ020PU19R
Active
VFDFPN 2X2X1.0 6L PITCH 0.5 Industrial Ecopack2
STLQ020PU28R
Active
VFDFPN 2X2X1.0 6L PITCH 0.5 Industrial Ecopack2
STLQ020PU33R
Active
VFDFPN 2X2X1.0 6L PITCH 0.5 Industrial Ecopack2
STLQ020PUR
Active
VFDFPN 2X2X1.0 6L PITCH 0.5 Industrial Ecopack2

STLQ020C18R

Package:

SOT323-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020C22R

Package:

SOT323-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020C28R

Package:

SOT323-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020C33R

Package:

SOT323-5L

Material Declaration**:

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020J18R

Package:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

CSP P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

N/A

STLQ020J25R

Package:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

CSP P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

N/A

STLQ020J30R

Package:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

CSP P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

N/A

STLQ020J33R

Package:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

CSP P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

N/A

STLQ020PU19R

Package:

VFDFPN 2X2X1.0 6L PITCH 0.5

Material Declaration**:

Marketing Status

Active

Package

VFDFPN 2X2X1.0 6L PITCH 0.5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020PU28R

Package:

VFDFPN 2X2X1.0 6L PITCH 0.5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFDFPN 2X2X1.0 6L PITCH 0.5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020PU33R

Package:

VFDFPN 2X2X1.0 6L PITCH 0.5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFDFPN 2X2X1.0 6L PITCH 0.5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ020PUR

Package:

VFDFPN 2X2X1.0 6L PITCH 0.5

Material Declaration**:

Marketing Status

Active

Package

VFDFPN 2X2X1.0 6L PITCH 0.5

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
Marketing Status
Budgetary Price (US$)*/Qty
Order from ST
Order from distributors
Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Operating temperature (°C)
Grade
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
min
max
STLQ020J18R
Available at 2 distributors

Distributor availability of STLQ020J18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3522 1
DIGIKEY WORLDWIDE 9517 1

Distributor reported inventory date: 4/1/2025

STLQ020C18R
Available at 3 distributors

Distributor availability of STLQ020C18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3410 1
FUTURE WORLDWIDE 200 0
DIGIKEY WORLDWIDE 1830 1

Distributor reported inventory date: 4/1/2025

STLQ020J33R
Available at 3 distributors

Distributor availability of STLQ020J33R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 1545 1
MOUSER WORLDWIDE 11958 1
DIGIKEY WORLDWIDE 4551 1

Distributor reported inventory date: 4/1/2025

STLQ020J25R
Available at 2 distributors

Distributor availability of STLQ020J25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5975 1
YOSUN ASIA/PACIFIC 200 1

Distributor reported inventory date: 4/2/2025

STLQ020PU33R
Available at 5 distributors

Distributor availability of STLQ020PU33R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 1282 1
ANGLIA Live EUROPE 3000 1
MOUSER WORLDWIDE 10731 1
FUTURE WORLDWIDE 117 0
DIGIKEY WORLDWIDE 8591 1

Distributor reported inventory date: 4/1/2025

STLQ020J30R
Available at 3 distributors

Distributor availability of STLQ020J30R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5060 1
DIGIKEY WORLDWIDE 3063 1
YOSUN ASIA/PACIFIC 200 1

Distributor reported inventory date: 4/2/2025

STLQ020C22R
Available at 1 distributors

Distributor availability of STLQ020C22R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 90 1

Distributor reported inventory date: 4/1/2025

STLQ020C28R
Available at distributors

Distributor availability of STLQ020C28R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

STLQ020PU19R
Available at distributors

Distributor availability of STLQ020PU19R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

STLQ020PUR
Available at 4 distributors

Distributor availability of STLQ020PUR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 8588 1
FUTURE WORLDWIDE 6000 0
DIGIKEY WORLDWIDE 7098 1
YOSUN ASIA/PACIFIC 240 1

Distributor reported inventory date: 4/2/2025

STLQ020C33R
Available at 3 distributors

Distributor availability of STLQ020C33R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 977 1
MOUSER WORLDWIDE 18206 1
DIGIKEY WORLDWIDE 11956 1

Distributor reported inventory date: 4/1/2025

STLQ020PU28R
Available at distributors

Distributor availability of STLQ020PU28R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

STLQ020J18R Active

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

Part Number:

STLQ020J18R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

1.8

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

MOUSER

Stock

3522

Min.Order

1

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

9517

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 4/1/2025

STLQ020C18R Active

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

Part Number:

STLQ020C18R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

1.8

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

MOUSER

Stock

3410

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

200

Min.Order

0

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

1830

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 4/1/2025

STLQ020J33R Active

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

Part Number:

STLQ020J33R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

Farnell Element14

Stock

1545

Min.Order

1

MOUSER

Stock

11958

Min.Order

1

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

4551

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 4/1/2025

STLQ020J25R Active

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

Part Number:

STLQ020J25R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

2.5

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

DIGIKEY

Stock

5975

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

200

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

Distributor reported inventory date: 4/2/2025

STLQ020PU33R Active

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

Part Number:

STLQ020PU33R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

Farnell Element14

Stock

1282

Min.Order

1

ANGLIA Live

Stock

3000

Min.Order

1

MOUSER

Stock

10731

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

117

Min.Order

0

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

8591

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 4/1/2025

STLQ020J30R Active

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

Part Number:

STLQ020J30R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

3

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

MOUSER

Stock

5060

Min.Order

1

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

3063

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

200

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

Distributor reported inventory date: 4/2/2025

STLQ020C22R Active

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

Part Number:

STLQ020C22R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

DIGIKEY

Stock

90

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 4/1/2025

STLQ020C28R Active

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

Part Number:

STLQ020C28R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

Distributor reported inventory date:

STLQ020PU19R Active

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

Part Number:

STLQ020PU19R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

Distributor reported inventory date:

STLQ020PUR Active

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

Part Number:

STLQ020PUR

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

MOUSER

Stock

8588

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

6000

Min.Order

0

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

7098

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

240

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

Distributor reported inventory date: 4/2/2025

STLQ020C33R Active

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

Part Number:

STLQ020C33R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

Distributor Name

Farnell Element14

Stock

977

Min.Order

1

MOUSER

Stock

18206

Min.Order

1

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

11956

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 4/1/2025

STLQ020PU28R Active

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

Part Number:

STLQ020PU28R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

2

Output Current (A) (nom):

0.2

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