Linear Technology's LT3092EST – Programmable Current Source

The LT3092EST is a highly versatile and innovative current source from Linear Technology, designed to provide a precisely regulated current output with a programmable range. This product presents a unique solution for applications requiring a constant current source or current sink, with the added benefit of easy adjustability through external resistors.

Key Features:

• Wide Operating Range: The LT3092EST operates over a wide voltage range of 1.2V to 40V, making it suitable for various applications, from low-voltage to high-voltage systems.
• Programmable Current Output: Users can set the output current from 0.5mA to 200mA with a single resistor. Additionally, the current can be adjusted to zero by shunting the SET pin to ground, providing exceptional flexibility in current control.
• High Accuracy: The device maintains a tight regulation with a typical accuracy of ±1% and a temperature coefficient of only 20ppm/°C, ensuring reliable performance across a range of temperatures.
• Low Dropout Voltage: The LT3092EST boasts a low dropout voltage of merely 350mV at full load, which enhances its efficiency and allows for operation in low headroom applications.
• Noisy or High Impedance Supply Rejection: It features superior supply rejection, which makes it ideal for noisy environments or when used with high impedance sources.

Applications:

• LED Lighting
• Battery Charging
• Power Supplies
• Automotive and Industrial Electronics
• Constant Current Regulators

The LT3092EST is housed in a thermally efficient surface-mount SOT-223 package, providing a compact footprint while ensuring adequate heat dissipation. It is fully protected with both current limit and thermal shutdown features, which safeguard the device and the load from potential damage due to over-current or excessive temperature conditions.

With its robust design, precision, and ease of use, the LT3092EST is an excellent choice for designers looking for a reliable and flexible current source solution. Whether for research and development or mass production, the LT3092EST delivers consistent performance and quality that Linear Technology is known for.