Introducing the LT3028EFE Dual Low-Noise, Low-Dropout Voltage Regulator

The LT3028EFE from Linear Technology is a high-performance, dual low-dropout voltage regulator (LDO) designed to deliver precision and stability for applications requiring low noise and a clean power supply. This regulator features two independent channels, each capable of supplying up to 500mA of output current, which makes it an ideal choice for sensitive analog circuits, RF systems, and mixed-signal designs.

Key Features:

• Dual Independent LDOs: The LT3028EFE provides two separate LDO channels, allowing for simultaneous regulation of different voltage levels with excellent cross-regulation between the two outputs.
• Low Noise Output: With an output noise as low as 20µVRMS over a 10Hz to 100kHz bandwidth, this regulator ensures a clean power supply, crucial for precision instrumentation, medical devices, and high-end audio applications.
• Wide Input Voltage Range: The device operates with an input voltage range from 1.8V to 20V, giving designers flexibility in various power supply configurations.
• Adjustable Output Voltage: Each channel's output voltage can be set from 1.22V to 20V via external resistors, providing versatility to match specific requirements.
• Low Dropout Voltage: The LT3028EFE exhibits a low dropout voltage, typically 300mV at full load, which enhances efficiency and allows operation with a minimal difference between input and output voltages.
• Thermal Protection: Integrated thermal shutdown protection ensures the device operates within safe temperature ranges, enhancing reliability and longevity.

Package and Reliability:

The LT3028EFE is offered in a 16-lead thermally enhanced TSSOP package, which provides efficient heat dissipation and a compact footprint for space-constrained applications. Its robust design ensures performance stability over a wide temperature range of -40°C to 125°C, suitable for industrial and automotive environments.

Applications:

With its dual-channel configuration and low-noise characteristics, the LT3028EFE is ideal for powering precision analog-to-digital converters (ADCs), digital-to-analog converters (DACs), portable test instruments, and battery-powered devices where power integrity is critical.

In summary, the LT3028EFE from Linear Technology is a reliable and versatile solution for applications demanding high-quality power supplies. Its dual outputs, low noise, and wide input voltage range make it a top choice for engineers looking to enhance system performance and efficiency.