L6983C33QTR

Voltage Regulators - DC DC Switching Regulators Overview

The L6983C33QTR is a high-efficiency synchronous step-down DC-DC converter from STMicroelectronics, designed for portable applications requiring low quiescent current and wide input voltage range. It integrates two N-channel power MOSFETs and operates with an input voltage range of 2.7V to 5.5V. The device provides a fixed output voltage of 3.3V with a maximum load current of 1.5A. It features adjustable switching frequency up to 2MHz, enabling the use of small external inductors and capacitors. The converter includes comprehensive protection mechanisms such as overcurrent protection, thermal shutdown, and undervoltage lockout.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for enhanced efficiency
• Integrated high-side and low-side N-channel power switches
• Fixed 3.3V output voltage option
• Wide input voltage capability suitable for single-cell lithium-ion batteries

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics
• Smartphones and tablets
• Digital cameras
• MP3 players and handheld devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QTR' indicates tape and reel packaging when ordering. Confirm the 'C33' designation corresponds to the fixed 3.3V output variant. Ensure compatibility with your PCB footprint and thermal requirements. Check for RoHS compliance status if required by your manufacturing standards. Validate that the operating temperature range meets your application's environmental conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component when a fixed 3.3V output is needed with moderate current demands up to 1.5A. It is suitable for space-constrained designs due to its compact package and high switching frequency options. Consider alternatives if higher output currents or adjustable output voltages are required. Evaluate the trade-off between efficiency and component count based on system power budget constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the L6983 family of synchronous buck converters. The family offers various output voltage configurations and packaging options. The L6983 series is known for its high efficiency and low standby current, making it ideal for battery-powered devices. Other variants in the series may offer different fixed outputs or adjustable voltage settings.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-to-pin replacements may include other 3.3V synchronous buck converters from manufacturers like Texas Instruments or Analog Devices. Verify electrical parameters such as switching frequency, current limit, and package dimensions before substitution. Ensure equivalent protection features and thermal performance are maintained in any alternative component selection.