Analog Devices LT83201 | Demoboard EVAL-LT83201-AZ

Description

The EVAL-LT83201-AZ demonstration board is an 18V, 1A synchronous Silent Switcher® 3 step-down regulator with ultra-low noise, high efficiency, and high power density. The input voltage range of the EVAL-LT83201-AZ is 3.9V to 18V. The default demo board setting is 3.3V for a 1A maximum DC output current with a 12V input. The LT83201 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 LT83201 to achieve both high efficiency and excellent wideband noise performance. A minimum on-time of 15ns allows high VIN to low VOUT conversion at high switching frequency.

Features

Silent Switcher® 3 ArchitectureUltra-Low RMS Noise (10Hz to 100kHz): 4μVRMSUltra-Low Spot Noise: 4nV/√Hz at 10kHzUltra-Low EMI EmissionsUltra-Fast Transient Response;<1μs Transient Recovery TimeHigh Efficiency at High FrequencyUp to 94% Efficiency at 2MHz, 12VIN to 5VOUTUp to 92% Efficiency at 4MHz, 12VIN to 5VOUTInput Voltage Range: 2.8V to 18VOutput Voltage Range: 0V to (VIN − 0.5V)Unity Gain Configuration up to 13V OutputMaximum Continuous Output Current: 1AFast Minimum Switch On-Time: 13ns;Adjustable and Synchronizable: 300kHz to 6MHz;Precision Reference: ±0.6% Over Temperature with Remote SensePin Selectable Forced Continuous Mode (FCM) or Discontinuous Conduction Mode (DCM) During OperationFull Frequency Discontinuous Conduction at Light Loads in DCM for Higher Efficiency and Predictable NoiseSupports Dynamic Output Voltage ControlProgrammable Power GoodTiny 15-Lead 3mm × 2mm LFCSP Package;Pin-to-Pin Compatible Family: LT83201 (1A), LT83203 (3A), LT83205 (5A)

Typical applications

More information

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