Product overview
Description
The L4931 is a very low drop regulator available in SO-8, DPAK and TO-92 packages and in a wide range of output voltages.
The very low drop voltage (0.4 V) and the very low quiescent current make it particularly suitable for low noise, low power applications and especially in battery-powered systems.
A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages. This means that when the device is used as a local regulator, a part of the board can be put in standby mode, decreasing the total power consumption. It requires only a 2.2 µF capacitor for stability allowing space and cost saving.
-
All features
- Very low dropout voltage (0.4 V)
- Very low quiescent current
- Typ. 50 µA in OFF mode, 600 µA in ON mode
- Output current up to 250 mA
- Logic controlled electronic shutdown
- Output voltages: 3.3; 3.5; 5;
- Internal current and thermal limit
- Only 2.2 µF for stability
- Available in ± 1 % (AB) or 2 % (C) selection at 25 °C
- Supply voltage rejection: 70 dB typ. for 5 V version
- Temperature range: from -40 to 125 °C
Featured Products
Discover our broad range of low-dropout linear voltage regulators, including ultra-low dropout, low IQ and high PSRR LDO regulators.
Recommended for you
Events and Seminars
Related Applications
All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 22.0 | 28 Oct 2024 | 28 Oct 2024 |
Presentations (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.2 | 02 Aug 2023 | 02 Aug 2023 |
Flyers (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 19 Sep 2023 | 19 Sep 2023 | ||
| 1.0 | 05 Jul 2024 | 05 Jul 2024 |
Brochures (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.0 | 17 Jul 2024 | 17 Jul 2024 | ||
| 2.0 | 25 May 2023 | 25 May 2023 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L4931
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L4931ABD33-TR | Active | SO-8 | Industrial | Ecopack2 (**) | - | - | |
| L4931ABD50-TR | Active | SO-8 | Industrial | Ecopack2 | - | - | |
| L4931ABDT33-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| L4931CD33-TR | Active | SO-8 | Industrial | Ecopack2 (**) | - | - | |
| L4931CD33-TRY | Active | SO-8 | Automotive | Ecopack2 | - | - | |
| L4931CD50-TR | Active | SO-8 | Industrial | Ecopack2 | - | - | |
| L4931CDT33-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| L4931CDT50-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| L4931CZ33-AP | NRND | TO-92 | Industrial | Ecopack2 | - | - | |
| L4931CZ50-AP | Active | TO-92 | Industrial | Ecopack2 | - | - |
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack2 (**)
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
DPAK
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack2 (**)
Marketing Status
Package
SO-8
Grade
Automotive
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
DPAK
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
DPAK
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
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 | ||||||||||||||||||||||||||
| L4931CZ33-AP | | | Available at distributors Distributor availability of L4931CZ33-AP
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931CD50-TR | | | Available at distributors Distributor availability of L4931CD50-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931ABD33-TR | | | Available at distributors Distributor availability of L4931ABD33-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931CD33-TR | | | Available at distributors Distributor availability of L4931CD33-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931CDT33-TR | | | Available at distributors Distributor availability of L4931CDT33-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931CZ50-AP | | | Available at distributors Distributor availability of L4931CZ50-AP
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931ABD50-TR | | | Available at distributors Distributor availability of L4931ABD50-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931ABDT33-TR | | | Available at distributors Distributor availability of L4931ABDT33-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931CDT50-TR | | | Available at distributors Distributor availability of L4931CDT50-TR
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
| L4931CD33-TRY | | | Available at distributors Distributor availability of L4931CD33-TRY
Distributor reported inventory date: | | | | Buy from Distributor | |
|
|
|
| |||||||||||||||
L4931CZ33-AP NRND
Part Number:
L4931CZ33-AP
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931CD50-TR Active
Part Number:
L4931CD50-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931ABD33-TR Active
Part Number:
L4931ABD33-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931CD33-TR Active
Part Number:
L4931CD33-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931CDT33-TR Active
Part Number:
L4931CDT33-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931CZ50-AP Active
Part Number:
L4931CZ50-AP
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931ABD50-TR Active
Part Number:
L4931ABD50-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931ABDT33-TR Active
Part Number:
L4931ABDT33-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931CDT50-TR Active
Part Number:
L4931CDT50-TR
Operating Temperature (°C)
Min:
Max:
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
Stock
Min.Order
L4931CD33-TRY Active
Part Number:
L4931CD33-TRY
Operating Temperature (°C)
Min:
Max:
Grade:
Automotive
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Distributor reported inventory date:
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