onsemi

LP2950ACDT-3.3

LP2950ACDT-3.3 Description

The LP2950ACDT-3.3 is a fixed-output, low-dropout (LDO) linear voltage regulator from onsemi, designed to deliver a stable 3.3V output with a maximum current of 100mA. This obsolete but reliable component operates with an input voltage range up to 30V, making it suitable for applications requiring higher input voltages. Its low dropout voltage of 0.45V @ 100mA ensures efficient regulation even when the input voltage approaches the output level. The device features overcurrent and over-temperature protection, enhancing system reliability in demanding environments. Packaged in a DPAK (TO-252) surface-mount form factor, it is ideal for space-constrained designs.

LP2950ACDT-3.3 Features

• Fixed 3.3V Output: Precision-regulated voltage for stable power delivery.
• Wide Input Range (Up to 30V): Supports higher input voltages compared to many LDOs.
• Low Dropout Voltage (0.45V @ 100mA): Maintains regulation with minimal headroom.
• Low Quiescent Current (120 µA): Reduces power consumption in standby modes.
• Protection Features: Includes overcurrent and thermal shutdown for robust operation.
• Surface-Mount DPAK Package: Compact and suitable for automated assembly.
• REACH Unaffected: Compliant with environmental regulations.

LP2950ACDT-3.3 Applications

The LP2950ACDT-3.3 is well-suited for:

• Battery-Powered Devices: Efficient voltage regulation in portable electronics.
• Industrial Control Systems: Reliable performance in harsh environments.
• Automotive Electronics: Stable power supply for sensors and low-power modules.
• Embedded Systems: Power management for microcontrollers and peripherals.
• Consumer Electronics: Used in devices requiring a steady 3.3V rail.

Conclusion of LP2950ACDT-3.3

The LP2950ACDT-3.3 is a versatile LDO regulator offering a balance of high input voltage tolerance, low dropout, and robust protection features. While marked as obsolete, its performance and reliability make it a viable choice for legacy designs or applications requiring a proven 3.3V regulator. Its compact DPAK package and low quiescent current further enhance its appeal for power-sensitive and space-constrained systems. For engineers seeking a dependable, low-power solution, the LP2950ACDT-3.3 remains a compelling option.