

L4941BV
STMicroelectronics
-40℃~+150℃@(Tj) 1 16V 1A 30uV 5V 700mV@(1A) 89dB@(120Hz) 8mA Fixed Positive Reverse connection protection、Short Circuit Protection、Thermal Shutdown TO-220AB-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
- Category
- Voltage Regulators Linear, Low Drop Out (LDO) Regulators
- Package
- TO-220AB-3
- Pins
- 3
Overview
The L4941BV is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by STMicroelectronics in a TO-220AB-3 package with 3 pins. -40℃~+150℃@(Tj) 1 16V 1A 30uV 5V 700mV@(1A) 89dB@(120Hz) 8mA Fixed Positive Reverse connection protection、Short Circuit Protection、Thermal Shutdown TO-220AB-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Regulator_Linear_1IN_2GND_3OUT, from PCBKit's generic symbols) and its footprint (EasyEDA_Cloud:TO-220F-3_L10.5-W4.7-P2.54-L, from EasyEDA), ready for a KiCad board. 41 are in stock at JLCPCB (part C283395). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
12- Features
- Thermal shutdown
- Noise
- 30uV
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+150℃@(Tj)
- Output Configuration
- Positive
- Output Current
- 1A
- Output Type
- Fixed
- Output Voltage
- 5V
- Power Supply Rejection Ratio (PSRR)
- 89dB@(120Hz)
- Voltage - Supply
- 16V
- Voltage Dropout
- 700mV@(1A)
- standby current
- 8mA
Order codes
1- L4941BVLCSC C283395
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | IN | Power in |
| 2 | GND | Power in |
| 3 | OUT | Power out |
Open-source boards using it
All 1- 2 layers152.4 × 71.1 mm

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Is there a KiCad symbol and footprint for the L4941BV?
Yes. The symbol is Pinmap_Generic:Regulator_Linear_1IN_2GND_3OUT and the footprint EasyEDA_Cloud:TO-220F-3_L10.5-W4.7-P2.54-L, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the L4941BV?
TO-220AB-3, with 3 pins. Its footprint is drawn on this page.
Where is the L4941BV datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the L4941BV?
JLCPCB lists it as part C283395, with 41 in stock; the sellers' links on this page open their listings.
What can replace the L4941BV?
Parts like it in the library: the L7905CV by STMicroelectronics, the L7805CP by STMicroelectronics, the LM7805L-TF3-T by UTC and the L7805ACV by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the L4941BV?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
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