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Power Circuits / Linear Regulator ICs / LD2981CM33TR
Datasheets
LD2981CM33TR by: STMicroelectronics

Ultra low drop voltage regulators with inhibit low ESR output

Part Details for LD2981CM33TR by STMicroelectronics

Results Overview of LD2981CM33TR by STMicroelectronics

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Applications Consumer Electronics Security and Surveillance Audio and Video Systems Transportation and Logistics Energy and Power Systems Renewable Energy Automotive Robotics and Drones

LD2981CM33TR Information

LD2981CM33TR 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 LD2981CM33TR

Part # Distributor Description Stock Price Buy
DISTI # 51AC9074
Newark Ldo, Fixed, 3.3V, 0.1A, -40 To 125Deg C, Output Type:Fixed, Input Voltage Min:2.5V, Input Voltage Max:16V, No. Of Outputs:1Outputs, Output Voltage Min:-, Output Voltage Max:-, Polarity:Positive Output, Ic Mounting:Surface Mount Rohs Compliant: Yes |Stmicroelectronics LD2981CM33TR RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape 277
  • 1 $0.0650
  • 10 $0.0650
  • 25 $0.0650
  • 50 $0.0650
  • 100 $0.0650
  • 250 $0.0650
  • 500 $0.0650
  • 1,000 $0.0650
$0.0650 Buy Now
DISTI # 23AC6185
Newark Power Management Rohs Compliant: Yes |Stmicroelectronics LD2981CM33TR RoHS: Compliant Min Qty: 3000 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 1 $0.3550
$0.3550 Buy Now
DISTI # LD2981CM33TR
Avnet Americas LDO Regulator Pos 3.3V 0.1A 5-Pin SOT-23 T/R - Tape and Reel (Alt: LD2981CM33TR) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 12 Weeks, 0 Days Container: Reel 33000
  • 3,000 $0.3549
$0.3549 Buy Now
DISTI # 51AC9074
Avnet Americas LDO Regulator Pos 3.3V 0.1A 5-Pin SOT-23 T/R - Product that comes on tape, but is not reeled (Alt: 51AC9074) RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 18 Weeks, 3 Days Container: Ammo Pack 277 Partner Stock
  • 1 $0.9000
  • 10 $0.6480
  • 25 $0.5840
  • 50 $0.5490
  • 100 $0.5130
$0.5130 / $0.9000 Buy Now
STMicroelectronics Ultra low drop voltage regulators with inhibit low ESR output RoHS: Compliant Min Qty: 1 4219
  • 1 $0.8800
  • 10 $0.6400
  • 25 $0.5600
  • 100 $0.4900
  • 250 $0.4500
  • 500 $0.4500
$0.4500 / $0.8800 Buy Now
Rochester Electronics LD2981 - Power Management-LINEAR VOLTAGE RoHS: Compliant Status: Active Min Qty: 1 2680
  • 1 $0.4258
  • 25 $0.4173
  • 100 $0.4003
  • 500 $0.3832
  • 1,000 $0.3619
$0.3619 / $0.4258 Buy Now
DISTI # LD2981CM33TR
TME IC: voltage regulator, LDO,linear,fixed, 3.3V, 0.1A, SOT23-5, SMD Min Qty: 1 18052
  • 1 $0.7660
  • 10 $0.6920
  • 50 $0.5910
  • 100 $0.5430
  • 250 $0.4790
  • 500 $0.4310
  • 1,000 $0.3820
  • 2,500 $0.3220
  • 3,000 $0.3090
$0.3090 / $0.7660 Buy Now
DISTI # LD2981CM33TR
Avnet Silica LDO Regulator Pos 33V 01A 5Pin SOT23 TR (Alt: LD2981CM33TR) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 13 Weeks, 0 Days Silica - 186000
Buy Now
DISTI # LD2981CM33TR
EBV Elektronik LDO Regulator Pos 33V 01A 5Pin SOT23 TR (Alt: LD2981CM33TR) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 13 Weeks, 0 Days EBV - 147000
Buy Now
Vyrian Regulators 35688
RFQ

Part Details for LD2981CM33TR

LD2981CM33TR CAD Models

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LD2981CM33TR Part Data Attributes

Parametric Data
LD2981CM33TR STMicroelectronics
Buy Now Datasheet
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LD2981CM33TR STMicroelectronics Ultra low drop voltage regulators with inhibit low ESR output
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOT-23
Package Description SOT-23, 5 PIN
Pin Count 5
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 18 Weeks, 3 Days
Samacsys Manufacturer STMicroelectronics
Adjustability FIXED
Dropout Voltage1-Max 0.375 V
Dropout Voltage1-Nom 0.18 V
Input Voltage Absolute-Max 16 V
Input Voltage-Max 16 V
Input Voltage-Min 4.3 V
JESD-30 Code R-PDSO-G5
JESD-609 Code e3
Length 2.95 mm
Line Regulation-Max 0.0123%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 5
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -40 °C
Output Current1-Max 0.1 A
Output Voltage1-Max 3.415 V
Output Voltage1-Min 3.184 V
Output Voltage1-Nom 3.3 V
Package Body Material PLASTIC/EPOXY
Package Code LSOP
Package Equivalence Code TSOP5/6,.11,37
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, LOW PROFILE
Packing Method TR
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 1.45 mm
Surface Mount YES
Terminal Finish Matte Tin (Sn) - annealed
Terminal Form GULL WING
Terminal Pitch 0.95 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tolerance-Max 3.5%
Width 1.6 mm

Alternate Parts for LD2981CM33TR

This table gives cross-reference parts and alternative options found for LD2981CM33TR. 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 LD2981CM33TR, 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
LP2981IM5X-3.3/NOPB National Semiconductor Corporation Check for Price IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.375 V DROPOUT, PDSO5, SOT-23, SOP-5, Fixed Positive Single Output LDO Regulator LD2981CM33TR vs LP2981IM5X-3.3/NOPB
LP2981IM5X-3.3 National Semiconductor Corporation Check for Price IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.375 V DROPOUT, PDSO5, SOT-23, SOP-5, Fixed Positive Single Output LDO Regulator LD2981CM33TR vs LP2981IM5X-3.3
LP2981-33DBVTE4 Texas Instruments Check for Price 100-mA, 16-V, low-dropout voltage regulator with enable 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2981-33DBVTE4
LP2981-33DBVT Texas Instruments $0.4574 100-mA, 16-V, low-dropout voltage regulator with enable 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2981-33DBVT
LP2981-33DBVRE4 Texas Instruments Check for Price 3.3V FIXED POSITIVE LDO REGULATOR, 0.375V DROPOUT, PDSO5, GREEN, PLASTIC, SOT-23, 5 PIN LD2981CM33TR vs LP2981-33DBVRE4
LP2981IM5X-3.3 Texas Instruments Check for Price Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 Package 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2981IM5X-3.3
LP2981IM5-3.3 Texas Instruments Check for Price 100-mA, 16-V, low-dropout voltage regulator with enable 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2981IM5-3.3
LP2981IM5-3.3/NOPB Texas Instruments $0.6959 100-mA, 16-V, low-dropout voltage regulator with enable 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2981IM5-3.3/NOPB
LP2981IM5-3.3/NOPB National Semiconductor Corporation Check for Price IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.375 V DROPOUT, PDSO5, SOT-23, SOP-5, Fixed Positive Single Output LDO Regulator LD2981CM33TR vs LP2981IM5-3.3/NOPB
LP2981IM5-3.3 National Semiconductor Corporation Check for Price IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.375 V DROPOUT, PDSO5, SOT-23, SOP-5, Fixed Positive Single Output LDO Regulator LD2981CM33TR vs LP2981IM5-3.3
Part Number Manufacturer Composite Price Description Compare
LP2985AIM5X-5.3/NOPB Texas Instruments Check for Price 5.3 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5 LD2981CM33TR vs LP2985AIM5X-5.3/NOPB
SC2982CSK-3.3TR Semtech Corporation Check for Price Fixed Positive LDO Regulator, 3.3V, 0.2V Dropout, BIPolar, PDSO5, SOT-23, 5 PIN LD2981CM33TR vs SC2982CSK-3.3TR
LP2985-50DBVRG4 Texas Instruments Check for Price 150-mA, 16-V, low-dropout voltage regulator with enable 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2985-50DBVRG4
S-818A28AMC-BGIT2G ABLIC Inc. Check for Price Fixed Positive LDO Regulator, 2.8V, 0.61V Dropout, CMOS, PDSO5, LEAD FREE, SOT-23, 5 PIN LD2981CM33TR vs S-818A28AMC-BGIT2G
S-1165B25MC-N6KTFG ABLIC Inc. Check for Price Fixed Positive LDO Regulator, 2.5V, 0.3V Dropout, CMOS, PDSO5, LEAD FREE, SOT-23, 5 PIN LD2981CM33TR vs S-1165B25MC-N6KTFG
TPS76927DBVTG4 Texas Instruments Check for Price 10-V, 100-mA, Low Iq, Low-Dropout Linear Regulator 5-SOT-23 -40 to 125 LD2981CM33TR vs TPS76927DBVTG4
FAN2502S30X Fairchild Semiconductor Corporation Check for Price Fixed Positive LDO Regulator, 3V, 0.18V Dropout, CMOS, PDSO5, SOT-23, 5 PIN LD2981CM33TR vs FAN2502S30X
LP2985-28DBVTG4 Texas Instruments $0.5033 150-mA, 16-V, low-dropout voltage regulator with enable 5-SOT-23 -40 to 125 LD2981CM33TR vs LP2985-28DBVTG4
MIC5213-3.3BC5TR Micrel Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.6V Dropout, PDSO5, SC-70, 5 PIN LD2981CM33TR vs MIC5213-3.3BC5TR
FAN2514S26 Fairchild Semiconductor Corporation Check for Price Fixed Positive LDO Regulator, 2.6V, 0.2V Dropout, CMOS, PDSO5, SOT-23, 5 PIN LD2981CM33TR vs FAN2514S26

LD2981CM33TR Related Parts

LD2981CM33TR Frequently Asked Questions (FAQ)

  • The maximum input voltage that the LD2981CM33TR can handle is 15V, but it's recommended to keep it below 12V for optimal performance and reliability.

  • To ensure the stability of the output voltage, make sure to use a suitable output capacitor with a value between 10uF to 100uF, and a low ESR (Equivalent Series Resistance) to minimize voltage ripple and noise.

  • The minimum input voltage required for the LD2981CM33TR to operate is 3.6V, but it's recommended to keep it above 4.5V for optimal performance and stability.

  • The LD2981CM33TR is rated for operation up to 125°C, but it's recommended to keep the junction temperature below 115°C to ensure reliability and longevity. Make sure to provide adequate heat sinking and thermal management.

  • The output current capability of the LD2981CM33TR depends on the input voltage, output voltage, and package thermal resistance. Use the formula in the datasheet to calculate the maximum output current, and consider derating for high temperatures and high output currents.

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