LT83402 Datasheet | Analog Devices

Data Sheet LT83401/LT83402 42V, 1A/2.5A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference Features - Silent Switcher® 3 Architecture - Ultra-Low RMS Noise (10Hz- 100k Hz): 2.8μVRMS - Ultra-Low Spot Noise: 4n V/√Hz at 10k Hz - Ultra-Low EMI Emissions - Ultra-Fast Transient Response - Minimizes the Output Capacitance - High Efficiency at High Frequency - Up to 92.4% Efficiency at 2MHz, 12VIN to 5VOUT - Input Voltage Range: 2.8V to 42V - Output Voltage Range: 0V to (VIN - 1V) - Unity Gain Configuration Up to 15VOUT - Fast Minimum Switch On-Time: 22ns - Precision Reference: ±0.8% Over Temperature with Remote Sense - Forced Continuous Mode Capability - Adjustable and Synchronizable: 300k Hz to 6MHz - Programmable Power Good - Tiny, 15-Lead 3mm x 2mm LFCSP Package - Pin-to-Pin patible Family: LT83201 (18V, 1A), LT83203 (18V, 3A), and LT83205 (18V, 5A) - AEC-Q100 Qualification in Progress TYPICAL APPLICATION GENERAL DESCRIPTION The LT®83401/LT®83402 synchronous step-down regulator is uniquely designed to bine an ultralow-noise reference with Silent Switcher architecture to achieve both high efficiency and excellent wideband noise performance. The innovative, ultra-low noise architecture provides exceptional low-frequency (0.1Hz to 100k Hz) output noise performance in a switching regulator. The output voltage can be programmed with a single resistor, resulting in virtually constant output noise independent of output voltage. Silent Switcher architecture minimizes Electromagnetic interference (EMI) emissions while delivering high efficiency at high switching...