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
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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 | 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 | |
| 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
(**) 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L4931CD50-TR | Active | 0.5025 / 1k | Available at 4 distributors Distributor availability of L4931CD50-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 5 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931ABD33-TR | Active | 0.5025 / 1k | Available at 4 distributors Distributor availability of L4931ABD33-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 3.3 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931CD33-TR | Active | 0.5025 / 1k | Available at 4 distributors Distributor availability of L4931CD33-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 3.3 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931CDT33-TR | Active | 0.5187 / 1k | Available at 3 distributors Distributor availability of L4931CDT33-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | DPAK | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 3.3 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931CZ50-AP | Active | 0.2702 / 1k | Available at 6 distributors Distributor availability of L4931CZ50-AP
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | TO-92 | Ammopack | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 5 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931ABD50-TR | Active | 0.5025 / 1k | Available at 2 distributors Distributor availability of L4931ABD50-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 5 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931ABDT33-TR | Active | 0.5334 / 1k | Available at 4 distributors Distributor availability of L4931ABDT33-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | DPAK | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 3.3 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931CDT50-TR | Active | 0.5187 / 1k | Available at 3 distributors Distributor availability of L4931CDT50-TR
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | DPAK | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Industrial | 5 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
| L4931CD33-TRY | Active | 0.6034 / 1k | Available at 3 distributors Distributor availability of L4931CD33-TRY
Distributor reported inventory date: 3/6/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 125 | Automotive | 3.3 | 1 | 0.25 | ||||||||||||||||||||||||||||||||||||||
L4931CD50-TR Active
Part Number:
L4931CD50-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Farnell Element14
Stock
1395Min.Order
1ANGLIA Live
Stock
8714Min.Order
1MOUSER
Stock
14838Min.Order
1DIGIKEY
Stock
4514Min.Order
1Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931ABD33-TR Active
Part Number:
L4931ABD33-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
MOUSER
Stock
18388Min.Order
1AVNET
Stock
5000Min.Order
0DIGIKEY
Stock
12663Min.Order
1Newark Element14
Stock
2Min.Order
0Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931CD33-TR Active
Part Number:
L4931CD33-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Farnell Element14
Stock
6975Min.Order
1MOUSER
Stock
2914Min.Order
1AVNET
Stock
20000Min.Order
0DIGIKEY
Stock
9673Min.Order
1Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931CDT33-TR Active
Part Number:
L4931CDT33-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Farnell Element14
Stock
1085Min.Order
1MOUSER
Stock
4791Min.Order
1DIGIKEY
Stock
7467Min.Order
1Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931CZ50-AP Active
Part Number:
L4931CZ50-AP
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Farnell Element14
Stock
1994Min.Order
1MOUSER
Stock
10315Min.Order
1FUTURE
Stock
2000Min.Order
0AVNET
Stock
4000Min.Order
0DIGIKEY
Stock
79401Min.Order
1Newark Element14
Stock
1310Min.Order
0Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931ABD50-TR Active
Part Number:
L4931ABD50-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
MOUSER
Stock
3845Min.Order
1DIGIKEY
Stock
12017Min.Order
1Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931ABDT33-TR Active
Part Number:
L4931ABDT33-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Farnell Element14
Stock
3841Min.Order
1MOUSER
Stock
2358Min.Order
1AVNET
Stock
2500Min.Order
0DIGIKEY
Stock
9807Min.Order
1Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931CDT50-TR Active
Part Number:
L4931CDT50-TR
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Industrial
Output Voltage (V) (nom):
5
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
MOUSER
Stock
12128Min.Order
1DIGIKEY
Stock
8474Min.Order
1Newark Element14
Stock
1272Min.Order
0Distributor reported inventory date: 3/6/2025
Stock
Min.Order
L4931CD33-TRY Active
Part Number:
L4931CD33-TRY
Operating Temperature (°C)
Min:
-40
Max:
125
Grade:
Automotive
Output Voltage (V) (nom):
3.3
Output Tolerance (typ):
1
Output Current (A) (nom):
0.25
Farnell Element14
Stock
1124Min.Order
1MOUSER
Stock
1560Min.Order
1DIGIKEY
Stock
1175Min.Order
1Distributor reported inventory date: 3/6/2025
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