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LF33CDT The STMicroelectronics LF33CDT is a linear voltage regulator providing a fixed 3.3V output at up to 500mA. It features a low dropout voltage and is available in a surface-mount TO-252 package.
Mfr Part #:

LF33CDT

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LF33CDT is a linear voltage regulator providing a fixed 3.3V output at up to 500mA. It features a low dropout voltage and is available in a surface-mount TO-252 package.
✓ Total Stock: 4,000 pcs
$ Price Range: $0.28

LF33CDT Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request On Request On Request On Request
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LF33CDT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Current
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)
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LF33CDT Description

Short technical summary and product information.

The STMicroelectronics LF33CDT is a low dropout (LDO) linear voltage regulator designed for various applications. It offers a stable 3.3V fixed output voltage and can supply up to 500mA of current. The device boasts a very low dropout voltage of 0.45V and a low quiescent current, making it suitable for battery-powered systems.

 

Key electrical characteristics include a maximum input voltage of 16V and a typical supply voltage rejection ratio of 80dB. The regulator includes internal current and thermal limit protection features. It requires only a 2.2µF capacitor for stability, contributing to space and cost savings.

 

The LF33CDT is supplied in a TO-252-3, DPak (2 Leads + Tab), SC-63 surface-mount package, suitable for automated assembly processes. Its operating temperature range is -40°C to 125°C, ensuring reliable performance in demanding environments.

 

This regulator is part of the LF00 series, known for very low drop voltage and low quiescent current, making them ideal for low noise and low power applications.

LF33CDT Quick Information

Product Type: Linear Voltage Regulator
Series: LF00 series
Canonical Name: LF33CDT Linear Voltage Regulator
Subcategory: Linear

LF33CDT Compliance

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

LF33CDT Estimated Pricing

Qty Low High
1+ $0.28 $0.28

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

LF33CDT Features

  • Fixed 3.3V output voltage.
  • Up to 500mA output current.
  • Very low dropout voltage (0.45V).
  • TO-252 surface-mount package.
  • Wide -40°C to 125°C operating temperature.

LF33CDT Applications

  • Suitable for battery-powered systems.
  • Ideal for low-noise applications.
  • Used in power management circuits.
  • Low power consumption designs.

LF33CDT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LF33CDT?

The LF33CDT provides a fixed output voltage of 3.3V.

What package is the LF33CDT available in?

The LF33CDT is available in a TO-252-3, DPak (2 Leads + Tab), SC-63 surface mount package, specifically the DPAK.

What is the operating temperature range of the LF33CDT?

The LF33CDT operates over a temperature range of -40°C to 125°C.

What is the dropout voltage of the LF33CDT?

The maximum dropout voltage is 0.7V at 500mA load current.

What is the quiescent current of the LF33CDT?

The quiescent current is 1mA typical.

What is the power supply rejection ratio (PSRR) of the LF33CDT?

The PSRR is typically 80dB at 120Hz.

What protection features does the LF33CDT include?

The LF33CDT includes over current and over temperature protection.

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