Description

The LT3097ADJC#PBF is a dual-channel, high-performance, low-dropout (LDO) linear voltage regulator from Analog Devices. It delivers both positive and negative adjustable outputs, each capable of sourcing up to 500 mA, making it ideal for noise-sensitive applications requiring bipolar power rails.

🔧 Key Specifications

• Output Voltage Range:

  • Positive: 0 V to +15 V

  • Negative: 0 V to –19.5 V

• Output Current: Up to 500 mA per channel

• Dropout Voltage:

  • Positive: 260 mV

  • Negative: 235 mV

• Input Voltage Range: ±2.3 V to ±20 V

• Noise Performance:

  • Positive Output: 20 µV RMS

  • Negative Output: 30 µV RMS

• Quiescent Current:

  • Positive: 2.2 mA (active), 0.3 µA (shutdown)

  • Negative: 2.35 mA (active), 3 µA (shutdown)

• Package: 22-lead DFN (6 mm × 3 mm)

⚙️ Features

• Ultra-Low Noise & High PSRR: Ensures clean power delivery for sensitive analog circuits.

• Independent Enable and Power Good Pins: Provides precise control and monitoring for each output.

• Protection Mechanisms:

  • Overcurrent Protection with Foldback

  • Thermal Shutdown with Hysteresis

  • Reverse Battery and Reverse Current Protection (Positive Output)

  • Short-Circuit Protection

  • Undervoltage Lockout (UVLO)

• Fast Startup Capability: Suitable for applications requiring quick power-up sequences.

• Stability with Low Capacitance: Stable operation with a minimum of 10 µF ceramic output capacitor per channel.analog.com

📦 Applications

• Bipolar Very Low-Noise Power Supplies

• RF Systems: Phase-Locked Loops, Voltage-Controlled Oscillators, Mixers, Low-Noise Amplifiers, Power Amplifiers

• High-Speed and High-Precision Data Converters

• Medical Imaging and Diagnostic Equipment

• Precision Instrumentation

• Post-Regulation for Switching Power Supplies

📚 Additional Resources

• Product Page: Analog Devices LT3097

• Datasheet: LT3097 Datasheet (PDF)

If you require further assistance with design considerations, evaluation boards, or sourcing information, feel free to ask!