KF33BD-TR The STMicroelectronics KF33BD-TR is a linear LDO regulator providing a fixed 3.3V output voltage with a maximum output current of 500mA. It features over current and over temperature protection.
Mfr Part #:

KF33BD-TR

Available from 7 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics KF33BD-TR is a linear LDO regulator providing a fixed 3.3V output voltage with a maximum output current of 500mA. It features over current and over temperature protection.
✓ Total Stock: 159,279 pcs
$ Price Range: $0.28

KF33BD-TR Available from 7 distributors

✓ Authorised
✓ Non-Authorised

KF33BD-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Lead Spacing
Lead Style
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Type
PSRR
Protection Features
Supplier Device Package
Voltage
Voltage Dropout (Max)

KF33BD-TR Description

Short technical summary and product information.

The STMicroelectronics KF33BD-TR is a single-output positive LDO (Low Dropout) regulator designed for linear power regulation. It provides a fixed output voltage of 3.3V and can deliver a maximum continuous output current of 500mA. The device operates with a maximum input voltage of 20V and has a typical quiescent current of 1mA, with a maximum supply current of 12mA.

 

Key electrical characteristics include a maximum voltage dropout of 0.7V at 500mA and a Power Supply Rejection Ratio (PSRR) ranging from 80dB to 60dB across the frequency range of 120Hz to 10kHz. Protection features such as over current and over temperature are integrated to enhance reliability.

 

The KF33BD-TR is supplied in an 8-pin SOIC package, suitable for surface mounting. It operates within an ambient temperature range of -40°C to 125°C. The 'Enable' control feature allows for power management.

 

This LDO regulator is suitable for various power management applications where a stable and regulated voltage is required. Its robust protection features and wide operating temperature range make it a reliable choice for demanding environments.

KF33BD-TR Quick Information

Product Type: LDO Regulator
Canonical Name: STMicroelectronics KF33BD-TR LDO Regulator
Subcategory: Linear Voltage Regulators

KF33BD-TR Compliance

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

KF33BD-TR Estimated Pricing

Qty Low High
1+ $0.28 $0.28

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

KF33BD-TR Features

  • Fixed 3.3V output voltage.
  • Maximum output current of 500mA.
  • Low voltage dropout of 0.7V.
  • Over current and over temperature protection.
  • Surface mount 8-SOIC package.

KF33BD-TR Applications

  • Power supply regulation.
  • Low power electronic devices.
  • Battery powered systems.
  • Post-regulation applications.

KF33BD-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the KF33BD-TR?

3.3V fixed.

What is the maximum input voltage?

20V.

What is the dropout voltage?

0.7V at 500mA.

What protection features does it have?

Over current and over temperature protection.

What is the package type?

8-SOIC surface mount package.

What is the operating temperature range?

-40°C to 125°C.

What is the PSRR?

80dB to 60dB over 120Hz to 10kHz.

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