Datasheets
L4941BDT by: STMicroelectronics

Very low drop 1A regulator

Part Details for L4941BDT by STMicroelectronics

Results Overview of L4941BDT by STMicroelectronics

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Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

L4941BDT Information

L4941BDT by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for L4941BDT

Part # Distributor Description Stock Price Buy
Bristol Electronics   73
RFQ
DISTI # L4941BDT
TME IC: voltage regulator, LDO,linear,fixed, 5V, 1A, DPAK, SMD, L4941 Min Qty: 1 1359
  • 1 $1.3100
  • 5 $1.1600
  • 25 $0.9900
  • 100 $0.8800
  • 500 $0.7500
$0.7500 / $1.3100 Buy Now
ComSIT USA Electronic Component RoHS: Not Compliant Stock DE - 0
Stock ES - 1445
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
Win Source Electronics VERY LOW DROP 1A REGULATOR | IC REG LINEAR 5V 1A DPAK 38000
  • 55 $0.9555
  • 130 $0.7840
  • 200 $0.7595
  • 275 $0.7350
  • 355 $0.7105
  • 475 $0.6370
$0.6370 / $0.9555 Buy Now

Part Details for L4941BDT

L4941BDT CAD Models

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L4941BDT Part Data Attributes

L4941BDT STMicroelectronics
Buy Now Datasheet
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L4941BDT STMicroelectronics Very low drop 1A regulator
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code TO-252
Package Description DPAK-3
Pin Count 3
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer STMicroelectronics
Adjustability FIXED
Dropout Voltage1-Max 0.7 V
Dropout Voltage1-Nom 0.7 V
Input Voltage Absolute-Max 30 V
Input Voltage-Max 16 V
Input Voltage-Min 6 V
JESD-30 Code R-PSSO-G2
JESD-609 Code e3
Length 6.5 mm
Line Regulation-Max 0.02%
Load Regulation-Max 0.02%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 2
Operating Temperature TJ-Max 150 °C
Operating Temperature TJ-Min -40 °C
Output Current1-Max 1 A
Output Voltage1-Max 5.2 V
Output Voltage1-Min 4.8 V
Output Voltage1-Nom 5 V
Package Body Material PLASTIC/EPOXY
Package Code TO-252
Package Equivalence Code SMSIP3H,.38,90TB
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 2.63 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish MATTE TIN
Terminal Form GULL WING
Terminal Pitch 2.25 mm
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tolerance-Max 4%
Width 6.1 mm

Alternate Parts for L4941BDT

This table gives cross-reference parts and alternative options found for L4941BDT. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of L4941BDT, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
L4941BDT-TR STMicroelectronics $1.0496 Very low drop 1A regulator L4941BDT vs L4941BDT-TR
REG104FA-5/KTTT Texas Instruments Check for Price IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PSSO5, GREEN, PLASTIC, TO-263, D2PAK-5, Fixed Positive Single Output LDO Regulator L4941BDT vs REG104FA-5/KTTT
REG104FA-5/500G3 Texas Instruments Check for Price 1-A, 15-V, low-dropout voltage regulator with enable 5-DDPAK/TO-263 L4941BDT vs REG104FA-5/500G3
REG104FA-5KTTTG3 Texas Instruments Check for Price 1A, Low-Noise, Low Dropout Regulator 5-DDPAK/TO-263 L4941BDT vs REG104FA-5KTTTG3
REG104FA-5 Texas Instruments Check for Price 1A, Low-Noise, Low Dropout Regulator 5-DDPAK/TO-263 L4941BDT vs REG104FA-5

L4941BDT Related Parts

L4941BDT Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the L4941BDT is 30V, but it's recommended to keep it below 28V for reliable operation.

  • To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor (at least 10uF), and keep the input voltage ripple below 1V.

  • Yes, the L4941BDT can operate up to 150°C, but the maximum junction temperature (Tj) should not exceed 150°C. Derate the output current and input voltage accordingly to ensure reliable operation.

  • The output voltage (Vout) can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (2.5V), R1 and R2 are the resistors connected to the output voltage adjustment pin.

  • The minimum input voltage required for the L4941BDT to operate is 7V, but it's recommended to keep it above 8V for reliable operation.

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