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LD2981CU50TR The STMicroelectronics LD2981CU50TR is a positive, fixed output LDO voltage regulator with a 5V output and 100mA current capability. It is supplied in a SOT-89-3 package.
Mfr Part #:

LD2981CU50TR

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LD2981CU50TR is a positive, fixed output LDO voltage regulator with a 5V output and 100mA current capability. It is supplied in a SOT-89-3 package.
✓ Total Stock: 104,877 pcs
$ Price Range: $0.28

LD2981CU50TR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
100,000 pcs
On Request
100000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,217 pcs
On Request
3217 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
Non-Authorised Inventory information
1,660 pcs
On Request
1660 pcs On Request 1 On Request On Request 1013 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LD2981CU50TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Height
Length
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
PSRR
Protection Features
Quiescent Current
Supplier Device Package
Voltage
Voltage Dropout (Max)
Width
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LD2981CU50TR Description

Short technical summary and product information.

The STMicroelectronics LD2981CU50TR is a linear voltage regulator designed for positive voltage regulation. It provides a fixed output voltage of 5V and can supply up to 100mA of current. The device features a low dropout voltage of 375mV at 100mA and a quiescent current of 100 uA, making it suitable for power-sensitive applications.

 

With an input voltage range from 2.5V to 16V, the LD2981CU50TR offers flexibility in power source selection. It includes over-current and over-temperature protection features for enhanced reliability. The regulator operates within a temperature range of -40°C to 125°C.

 

Packaged in a SOT-89-3 surface-mount case, this component is designed for easy integration into printed circuit boards. Its dimensions are 4.6mm in length, 2.6mm in width, and a maximum height of 1.6mm. The LD2981CU50TR is a reliable choice for various power management needs in electronic designs.

LD2981CU50TR Quick Information

Product Type: LDO Voltage Regulator
Series: LD2981CU
Canonical Name: LD2981CU50TR LDO Voltage Regulator
Subcategory: LDO Voltage Regulator

LD2981CU50TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LD2981CU50TR Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LD2981CU50TR Features

  • Fixed 5V positive output voltage.
  • 100mA maximum output current.
  • Low 375mV dropout voltage.
  • Surface mount SOT-89-3 package.
  • Wide -40°C to 125°C operating temperature.

LD2981CU50TR Applications

  • Powering sensitive electronic circuits.
  • Battery-powered device applications.
  • Portable electronic equipment.
  • General voltage regulation needs.

LD2981CU50TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LD2981CU50TR?

5V.

What is the input voltage range?

2.5V to 16V.

What is the dropout voltage?

375mV maximum at 100mA load.

What is the quiescent current?

100µA typical.

What is the operating temperature range?

-40°C to +125°C.

What is the package type?

SOT-89-3 surface-mount package.

What is the voltage regulation accuracy?

1.25%.

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