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The LD39020 high accuracy voltage regulator provides 200 mA of maximum current from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of 200 mV.
It is available in DFN4 1x1 and SOT23-5L packages, 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 low noise features, together with the internal soft-start circuit, make the LD39020 suitable for low power battery-operated applications.
An enable logic control function puts the LD39020 in shutdown mode allowing a total current consumption lower than 0.1 µA. Constant current and thermal protection are provided.Key Features
- Input voltage from 1.5 to 5.5 V
- Ultra low dropout voltage (200 mV typ. at 200 mA load)
- Very low quiescent current (20 µA typ at no load, 0.03 µA typ in off mode)
- Output voltage tolerance: ± 0.5 % (A version) or ± 2.0 % @ 25 °C (standard version)
- 200 mA guaranteed output current
- High PSRR (80 dB@1 kHz, 50 db@100 kHz)
- Wide range of output voltages available on request: from 0.8 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 = 0.47 µF
- Internal constant current and thermal protections
- Available in DFN4 1x1 and SOT23-5L
- Operating temperature range: -40 °C to 125 °C
Featured Videos
Evaluation Tools
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Picture Part number Manufacturer Description 
STEVAL-ISB037V1 ST Evaluation board for the LD39020 High PSRR, 200mA LDO Part NumberEvaluation board for the LD39020 High PSRR, 200mA LDO
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD39020ADM30R | Active | SOT23-5L | Industrial | Ecopack2 | |
| LD39020ADTPU08R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU11R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU13R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU18R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU21R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU25R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU28R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU30R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ADTPU33R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ATPU185R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ATPU32R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020ATPU33R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU08R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU095R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU10R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU11R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU12R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU13R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU15R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU18R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU20R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU21R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU25R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU27R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU285R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU28R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU29R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU30R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU31R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU33R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU36R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU40R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU47R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020DTPU50R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020TPU10R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020TPU185R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020TPU32R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020TPU33R | Active | DFN4 1x1 | Industrial | Ecopack2 | |
| LD39020TPU50R | Preview | DFN4 1x1 | Industrial | Ecopack2 | |
LD39020ADTPU08R
Package:
DFN4 1x1Material Declaration**:
LD39020ADTPU11R
Package:
DFN4 1x1Material Declaration**:
LD39020ADTPU13R
Package:
DFN4 1x1Material Declaration**:
LD39020ADTPU21R
Package:
DFN4 1x1Material Declaration**:
LD39020ATPU185R
Package:
DFN4 1x1Material Declaration**:
LD39020ATPU32R
Package:
DFN4 1x1Material Declaration**:
LD39020ATPU33R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU08R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU095R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU10R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU11R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU12R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU13R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU15R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU18R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU20R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU21R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU25R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU27R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU285R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU28R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU29R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU30R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU31R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU33R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU36R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU40R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU47R
Package:
DFN4 1x1Material Declaration**:
LD39020DTPU50R
Package:
DFN4 1x1Material Declaration**:
LD39020TPU10R
Package:
DFN4 1x1Material Declaration**:
LD39020TPU185R
Package:
DFN4 1x1Material Declaration**:
LD39020TPU32R
Package:
DFN4 1x1Material Declaration**:
LD39020TPU50R
Package:
DFN4 1x1Material Declaration**:
(**) 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 | Package | Packing Type | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Marketing Status | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LD39020ADTPU13R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 1.3 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU33R | 3 distributors | Get sample | DFN4 1x1 | Tape And Reel | 3.3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU13R | 1 distributors | Get sample | DFN4 1x1 | Tape And Reel | 1.3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU10R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 1 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU20R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU27R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.7 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020ADTPU08R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 0.8 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ADTPU18R | 3 distributors | Get sample | DFN4 1x1 | Tape And Reel | 1.8 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU11R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 1.1 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU25R | 2 distributors | Buy now | DFN4 1x1 | Tape And Reel | 2.5 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020TPU32R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 3.2 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU21R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.1 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU30R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ADTPU25R | 2 distributors | Get sample | DFN4 1x1 | Tape And Reel | 2.5 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ADTPU28R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.8 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020ADTPU30R | 3 distributors | Buy now | DFN4 1x1 | Tape And Reel | 3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ADTPU21R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.1 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU18R | 2 distributors | Get sample | DFN4 1x1 | Tape And Reel | 1.8 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ATPU185R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 1.8 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020TPU50R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 5 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU285R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.8 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU40R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 4 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU29R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.9 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU31R | 1 distributors | Get sample | DFN4 1x1 | Tape And Reel | 3.1 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ADTPU11R | 2 distributors | Buy now | DFN4 1x1 | Tape And Reel | - | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU47R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 4.7 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU15R | 4 distributors | Buy now | DFN4 1x1 | Tape And Reel | 1.5 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ATPU33R | 2 distributors | Buy now | DFN4 1x1 | Tape And Reel | 3.3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU28R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 2.8 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020TPU33R | 1 distributors | Get sample | DFN4 1x1 | Tape And Reel | 3.3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ATPU32R | 3 distributors | Buy now | DFN4 1x1 | Tape And Reel | 3.2 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020TPU10R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 1 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU36R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 3.6 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU08R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 0.8 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU12R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 1.2 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020ADTPU33R | 3 distributors | Get sample | DFN4 1x1 | Tape And Reel | 3.3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020DTPU095R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 0.95 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020DTPU50R | No availability of distributors reported, please contact our sales office | DFN4 1x1 | Tape And Reel | 5 | 0.5 | 0.2 | Preview | EAR99 | CHINA | 0.15 / 1k | ||
| LD39020TPU185R | No availability of distributors reported, please contact our sales office | Buy now | DFN4 1x1 | Tape And Reel | 1.85 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.15 / 1k | |
| LD39020ADM30R | 4 distributors | Buy now | SOT23-5L | Tape And Reel | 3 | 0.5 | 0.2 | Active | EAR99 | CHINA | 0.298 / 1k |
LD39020ADTPU13R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU10R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU20R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU27R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU21R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020ADTPU28R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020ADTPU21R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020TPU50R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU285R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU40R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU29R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU28R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020TPU10R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU36R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU08R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU12R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU095R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1kLD39020DTPU50R
Package
DFN4 1x1Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.15 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
