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L78L18ACD The STMicroelectronics L78L18ACD is a positive linear voltage regulator providing a fixed 18V output and up to 100mA of current. It features internal protection against overcurrent and thermal overload.
Mfr Part #:

L78L18ACD

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L78L18ACD is a positive linear voltage regulator providing a fixed 18V output and up to 100mA of current. It features internal protection against overcurrent and thermal overload.
✓ Total Stock: 450 pcs
$ Price Range: $0.30

L78L18ACD Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Chanetech ✓
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450 pcs
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L78L18ACD Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Input Voltage
Lead Style
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
Quiescent Current
Supplier Device Package
Supply Current
Voltage
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L78L18ACD Description

Short technical summary and product information.

The L78L18ACD is a positive voltage regulator from STMicroelectronics, designed for a wide range of applications requiring stable voltage regulation. It offers a fixed output voltage of 18V and can deliver an output current of up to 100mA.

 

Key features include internal current limiting and thermal shutdown, making the device robust against overloads. It operates within a temperature range of 0°C to 125°C and requires no external components for basic operation. The device is housed in an 8-SOIC surface-mount package.

 

This regulator is suitable for local on-card regulation, helping to eliminate noise and distribution problems associated with single-point regulation. It can also be used with power pass elements to create high-current voltage regulators. The L78L series serves as an improved replacement for Zener diode/resistor combinations, offering lower quiescent current and noise.

 

Specifications include a maximum input voltage of 40V, a typical quiescent current of 6mA, and a maximum supply current of 6.5mA. The PSRR is rated at 38dB at 120Hz. Protection features include over current, over temperature, and short circuit protection.

L78L18ACD Quick Information

Product Type: Voltage Regulator
Canonical Name: L78L18ACD Voltage Regulator
Subcategory: Linear

L78L18ACD Compliance

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

L78L18ACD Estimated Pricing

Qty Low High
1+ $0.30 $0.30

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

L78L18ACD Features

  • Fixed 18V positive voltage regulator.
  • Output current up to 100mA.
  • Internal overcurrent and thermal protection.
  • Operates from 0°C to 125°C.
  • Surface mount 8-SOIC package.

L78L18ACD Applications

  • Local on-card voltage regulation.
  • Noise reduction in power distribution.
  • Replacement for Zener diode circuits.
  • Power supply for electronic devices.

L78L18ACD FAQs

5 frequently asked questions generated from this part’s specifications.
What is the output voltage of the L78L18ACD?

The L78L18ACD provides a fixed output voltage of 18V.

What is the maximum output current for the L78L18ACD?

The L78L18ACD can deliver an output current of up to 100mA.

What is the operating temperature range for this voltage regulator?

The operating temperature range for the L78L18ACD is 0°C to 125°C.

What package type is the L78L18ACD available in?

The L78L18ACD is available in an 8-SOIC package.

What protection features are included in the L78L18ACD?

The L78L18ACD includes over current, over temperature, and short circuit protection.

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