EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
LM3940IS-3.3/NOPB Real Image LM3940IS-3.3/NOPB Real Image1 LM3940IS-3.3/NOPB Real Image2 LM3940IS-3.3/NOPB Real Image3
Same model may have multiple batches, images only for reference.
LM3940IS-3.3/NOPB Real Image LM3940IS-3.3/NOPB Real Image1 LM3940IS-3.3/NOPB Real Image2 LM3940IS-3.3/NOPB Real Image3
LM3940IS-3.3/NOPB Real Image LM3940IS-3.3/NOPB Real Image1 LM3940IS-3.3/NOPB Real Image2 LM3940IS-3.3/NOPB Real Image3
Same model may have multiple batches, images only for reference.

LM3940IS-3.3/NOPB

Part No LM3940IS-3.3/NOPB
Manufacturer Texas Instruments
Catalog PMIC - Voltage Regulators - Linear
Description IC REG LDO 3.3V 1A DDPAK
Datasheet
LM3940IS-3.3/NOPB Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer Texas Instruments
Packaging Tube/Rail
Status Active
Output Type Fixed
Number of Regulators 1
Maximum Input Voltage 7.5V
Nominal Output Voltage (Min/Fixed) 3.3V
Dropout Voltage-Max 0.2V @ 100mA
Output Current 1A
Operating Supply Current 15mA
Control Protection Features Over Temperature, Short Circuit
Temperature Range - Operating -40°C to 125°C
Regulator Topology Positive Fixed
Output Voltage 3.3V
Voltage - Dropout (Typical) 0.5V @ 1A
Mounting SMD (SMT)
Case / Package DDPAK/TO-263-3
Win Source Part Number 019226-LM3940IS-3.3/NOPB
Popularity Medium
Supply and Demand Status Limited
Application Field Used in Power Management, Computers & Computer Peripherals, Signal Processing
Ultra Librarian 3D Model Ultra Librarian LM3940IS-3.3/NOPB CAD Model

Description

The LM3940IS-3.3/NOPB is a high-quality, low-dropout voltage regulator from the globally renowned company, Texas Instruments.

  • Output Voltage: 3.3V
  • Maximum Current: 1A
  • Features: Overcurrent and thermal protection
  • Capacitor Compatibility: Compatible with a wide range of capacitors and can work with a low Equivalent Series Resistance (ESR) capacitor
  • Package: TO-263 package
  • Compliance: RoHS compliant

You May Also Be Interested in

AP2127N-2.5TRG1 Real Image
AP2127N-2.5TRG1
Diodes Incorporated
IC REG LDO 2.5V 0.3A SOT23
Lowest to $0.0862
MC33275DT-2.5 Real Image
MC33275DT-2.5
ON Semiconductor
300 mA, Low Dropout Voltage Regulator | IC REG LINEAR 2.5V 300MA DPAK
Lowest to $1.2657
MIC5255-3.3BD5-TR Microchip Technology
MIC5255-3.3BD5-TR
Microchip Technology
IC REG LDO 3.3V 0.15A TSOT23-5
Need more? Email Us
TPS73701DRBT Real Image
TPS73701DRBT
Texas Instruments
IC REG LDO ADJ 1A 8SON
Lowest to $0.8516
NJM78M20FA Real Image
NJM78M20FA
NJR Corporation/NJRC
IC REG LDO 20V 0.5A TO220F
Need more? Email Us
LP2986AIMM-3.3 Real Image
LP2986AIMM-3.3
Texas Instruments
Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage Regulator | IC REG LINEAR 3.3V 200MA 8VSSOP
Lowest to $1.0945
AP139-35WG-7 Real Image
AP139-35WG-7
Diodes Incorporated
IC REG LDO 3.5V 0.3A SOT25
Lowest to $0.5804
MIC29312WT Real Image
MIC29312WT
Microchip Technology
IC REG LDO ADJ 3A TO220-5
Lowest to $3.2924
TPS7A3725DRVT Real Image
TPS7A3725DRVT
Texas Instruments
High-Accuracy, 1-A, Low-Dropout Regulator With Reverse Current Protection | IC REG LINEAR 2.5V 1A 6SON
Lowest to $2.6910

Top Sellers

FT230XQ-R real image21397
FT230XQ-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16QFN
Lowest to $5.4647
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.9399
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $4.1579
LM5069MM-2/NOPB real image1604
LM5069MM-2/NOPB
Texas Instruments
IC CTRLR HOT SWAP 48V 10-MSOP
Lowest to $2.3760
PI3740-00-LGIZ real image
PI3740-00-LGIZ
Vicor Corporation
DC DC CONVERTER 10-50V / 8V – 60VIN , 10V – 50VOUT , 50 – 140W Cool-Power ZVS Buck-Boost Regulator
Lowest to $32.0752
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $14.0181
TPSM63606RDLR Real Image
TPSM63606RDLR
Texas Instruments
DC DC CONVERTER 1-16V / Non-Isolated PoL Module DC DC Converter 1 Output 1 ~ 16V 6A 3V - 36V Input
Lowest to $13.4125
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.1782
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $19.0076
74HC595D,118 label picture
74HC595D,118
Nexperia USA Inc.
Counter Shift Registers 8-bit serial-in, serial or parallel-out shift register with output latches; 3 - state
Lowest to $0.1046
PE4312C-Z label picture
PE4312C-Z
Peregrine Semiconductor
RF ATTENUATOR 31.5DB 50OHM 20QFN
Lowest to $2.2891
BME280 Real Image
BME280
Bosch Sensortec
SENSOR PRESSURE HUMIDITY TEMP
Lowest to $4.0391
FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.4151
ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.4647
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $14.0181

Pricing & Ordering

Quantity Unit Price Ext. Price
22+ $2.2901 $50.3822
54+ $1.8791 $101.4714
83+ $1.8204 $151.0932
114+ $1.7617 $200.8338
147+ $1.7029 $250.3263
197+ $1.5268 $300.7796
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 5,040 pieces
MOQ: 22 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?
Ordering Guidelines

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess