LD1117-3.3 The STMicroelectronics LD1117-3.3 is a positive low voltage dropout regulator with a typical dropout voltage of 1.2V at 1A. It features thermal shutdown and current limiting.
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LD1117-3.3

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LD1117-3.3 is a positive low voltage dropout regulator with a typical dropout voltage of 1.2V at 1A. It features thermal shutdown and current limiting.
✓ Total Stock: 395 pcs
$ Price Range: $0.28

LD1117-3.3 Available from 1 distributor

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✓ Non-Authorised
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395 pcs
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LD1117-3.3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
SVHC Present

LD1117-3.3 Description

Short technical summary and product information.

The LD1117-3.3 is a linear voltage regulator from STMicroelectronics designed for positive voltage regulation. It offers a fixed output voltage of 3.3V with an accuracy of 1.5% for the fixed versions. A key feature is its low dropout voltage, typically 1.2V at a 1A load current, making it suitable for battery-powered applications where efficient voltage regulation is crucial.

 

This regulator includes built-in thermal shutdown and current limiting protection mechanisms, enhancing its reliability and robustness in various electronic products. The operating temperature range is from -40°C to 125°C.

 

The LD1117-3.3 is available in multiple surface-mount packages, including SOT-223-3L, TO-252-2L, and SOT-89-3L. These packages are suitable for a wide range of applications, from portable instrumentation to SMPS post-regulators.

 

Applications include laptop, palmtop, and notebook computers, battery chargers, SCSI-II active terminators, cellular phones, cordless telephones, battery-powered systems, and portable instrumentation.

LD1117-3.3 Quick Information

Product Type: Linear Voltage Regulator
Series: LD1117
Canonical Name: LD1117-3.3 3.3V 1A Low Dropout Linear Voltage Regulator
Subcategory: Linear

LD1117-3.3 Compliance

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

LD1117-3.3 Estimated Pricing

Qty Low High
1+ $0.28 $0.28

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

LD1117-3.3 Features

  • Low dropout voltage of 1.2V at 1A.
  • Fixed 3.3V output voltage.
  • 1.5% output voltage accuracy.
  • Thermal shutdown and current limiting.
  • Available in SOT-223-3L, TO-252-2L, SOT-89-3L.

LD1117-3.3 Applications

  • Ideal for battery-powered systems.
  • Suitable for portable instrumentation.
  • Used in notebook computers.
  • Applicable for battery chargers.
  • Works as SMPS post-regulator.

LD1117-3.3 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LD1117-3.3?

The LD1117-3.3 has a fixed output voltage of 3.3V.

What is the maximum output current of the LD1117-3.3?

The LD1117-3.3 has a minimum current limit of 1A.

What is the dropout voltage of the LD1117-3.3?

The typical dropout voltage is 1.2V at 1A load.

What is the operating temperature range of the LD1117-3.3?

The operating junction temperature range is -40°C to +125°C.

What packages are available for the LD1117-3.3?

The LD1117-3.3 is available in SOT-223-3L, TO-252-2L, and SOT-89-3L packages.

What is the input voltage range for the LD1117-3.3?

The maximum input supply voltage is 15V, and the maximum operating input voltage is 12V.

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