Product overview
Description
The LD56050 is a high accuracy voltage regulator, which provides 0.5 A of current. It is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin, thus allowing an ultra low-drop performance even at very low input voltages.
It is available in DFN4 1.2 x 1.2 package, allowing the maximum space saving.
The device is stabilized with a small ceramic capacitor on the output. The ultra low-drop, low quiescent current and short circuit current foldback make the LD56050 suitable for low power battery-operated applications.
An enable logic control function puts the LD56050 in shutdown mode allowing a total current consumption lower than 0.1 µA. Thermal protection is also included.
-
All features
- Input voltage from 0.8 to 5.5 V
- Bias supply pin
- Ultra low-dropout voltage (120 mV max. at 500 mA load)
- Low ground current (27 μA typ. at no-load)
- Output voltage tolerance: ± 1.5% overtemperature, 0.5% at 25 °C
- 500 mA guaranteed output current
- 50 mV output voltage step available from 0.8 V to 3.6 V
- Logic-controlled electronic shutdown
- Internal current limit with foldback
- Thermal shutdown
- Output active discharge function
- Available in DFN4 1.2 x 1.2 mm package
- Temperature range: -40 °C to 85 °C
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - LD56050
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3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| LD56050DPU105R | Active | DFN4 1.2x1.2 | Industrial | Ecopack2 | - | - | |
| LD56050DPU110R | Active | DFN4 1.2x1.2 | Industrial | Ecopack2 | - | - | |
| LD56050DPU120R | Active | DFN4 1.2x1.2 | Industrial | Ecopack2 | - | - | |
| LD56050DPU150R | Evaluation | DFN4 1.2x1.2 | Industrial | Ecopack2 | - | - | |
Marketing Status
Package
DFN4 1.2x1.2
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
DFN4 1.2x1.2
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
DFN4 1.2x1.2
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
DFN4 1.2x1.2
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 | 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) | Operating Temperature (°C) (max) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||||||||||||||||||||||||||||||
| LD56050DPU120R | Active | 0.1732 / 1k | Available at 3 distributors Distributor availability of LD56050DPU120R
Distributor reported inventory date: 4/27/2025 | | | | Buy from Distributor | | DFN4 1.2x1.2 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 85 | Industrial |
| 0.5 | 0.5 | |||||||||||||||||||||||
| LD56050DPU105R | Active | 0.1732 / 1k | Available at 1 distributors Distributor availability of LD56050DPU105R
Distributor reported inventory date: 4/26/2025 | | | | Buy from Distributor | | DFN4 1.2x1.2 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 85 | Industrial |
| 0.5 | 0.5 | |||||||||||||||||||||||
| LD56050DPU150R | Evaluation | 0.1732 / 1k | Available at distributors Distributor availability of LD56050DPU150R
Distributor reported inventory date: | | | | Buy from Distributor | | DFN4 1.2x1.2 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 85 | Industrial |
| 0.5 | 0.5 | |||||||||||||||||||||||
| LD56050DPU110R | Active | 0.1732 / 1k | Available at 2 distributors Distributor availability of LD56050DPU110R
Distributor reported inventory date: 4/27/2025 | | | | Buy from Distributor | | DFN4 1.2x1.2 | Tape and Reel | ITALY | EAR99 | NEC | -40 | 85 | Industrial |
| 0.5 | 0.5 | |||||||||||||||||||||||
LD56050DPU120R Active
Part Number:
LD56050DPU120R
Operating Temperature (°C)
Min:
-40
Max:
85
Grade:
Industrial
Output Voltage (V) (nom):
-
Output Tolerance (typ):
0.5
Output Current (A) (nom):
0.5
MOUSER
Stock
2865Min.Order
1DIGIKEY
Stock
283Min.Order
1YOSUN
Stock
200Min.Order
1Distributor reported inventory date: 4/27/2025
Stock
Min.Order
LD56050DPU105R Active
Part Number:
LD56050DPU105R
Operating Temperature (°C)
Min:
-40
Max:
85
Grade:
Industrial
Output Voltage (V) (nom):
-
Output Tolerance (typ):
0.5
Output Current (A) (nom):
0.5
DIGIKEY
Stock
5597Min.Order
1Distributor reported inventory date: 4/26/2025
Stock
Min.Order
LD56050DPU150R Evaluation
Part Number:
LD56050DPU150R
Operating Temperature (°C)
Min:
-40
Max:
85
Grade:
Industrial
Output Voltage (V) (nom):
-
Output Tolerance (typ):
0.5
Output Current (A) (nom):
0.5
Distributor reported inventory date:
Stock
Min.Order
LD56050DPU110R Active
Part Number:
LD56050DPU110R
Operating Temperature (°C)
Min:
-40
Max:
85
Grade:
Industrial
Output Voltage (V) (nom):
-
Output Tolerance (typ):
0.5
Output Current (A) (nom):
0.5
MOUSER
Stock
5926Min.Order
1DIGIKEY
Stock
6448Min.Order
1Distributor reported inventory date: 4/27/2025
Stock
Min.Order
(*) 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