Analog Devices LT83402 | Demoboard EVAL-LT83402-AZ

Description

The EVAL-LT83401-AZ and EVAL-LT83402-AZ (abbreviated as EVAL-LT83401/2-AZ) demonstration boards are 42V, 1A, and 2.5A synchronous Silent Switcher® 3 step-down regulators with ultra-low noise, high efficiency, and power density, featuring the LT83401 and LT83402 (abbreviated as LT83401/2), respectively. The input voltage range of the EVAL-LT83401/2-AZ is 4.8V to 42V. The default demo board setting is 3.3V output with a maximum 1A/2.5A DC output current. The LT83401/2 is a compact, ultra-low noise, ultra-low emission, high efficiency, and high-speed synchronous monolithic step-down switching regulator. The uniquely designed combination of the ultra-low noise reference and third-generation Silent Switcher architecture enables the LT83401/2 to achieve both high efficiency and excellent wideband noise performance. A minimum on-time of 22ns allows high VIN to low VOUT conversion at high frequency.

Features

Silent Switcher® 3 ArchitectureUltra-Low RMS Noise (10Hz–100kHz): 2.8μVRMSUltra-Low Spot Noise: 4nV/√Hz at 10kHzUltra-Low EMI EmissionsUltra-Fast Transient ResponseMinimizes the Output CapacitanceHigh Efficiency at High FrequencyUp to 92.4% Efficiency at 2MHz, 12VIN to 5VOUTInput Voltage Range: 2.8V to 42VOutput Voltage Range: 0V to (VIN - 1V)Unity Gain Configuration Up to 15VOUTFast Minimum Switch On-Time: 22nsPrecision Reference: ±0.8% Over Temperature with Remote SenseForced Continuous Mode CapabilityAdjustable and Synchronizable: 300kHz to 6MHz;Programmable Power GoodTiny, 15-Lead 3mm x 2mm LFCSP Package;Pin-to-Pin Compatible Family: LT83201 (18V, 1A), LT83203 (18V, 3A), and LT83205 (18V, 5A)AEC-Q100 Qualification in Progress

Typical applications

More information

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