Analog Devices LT83203 | Demoboard EVAL-LT83203-AZ

Beschreibung

The EVAL-LT83203-AZ and EVAL-LT83205-AZ (abbreviated as EVAL-LT83203/5-AZ) demonstration boards are 18V, 3A, and 5A Silent Switcher® 3 step-down regulators with ultra-low noise, high efficiency, and power density, featuring the LT83203 and LT83205 (abbreviated as LT83203/5), respectively. The input voltage range of the EVAL-LT83203/5-AZ is 2.8V to 18V. The default demo board setting is 1V output with a maximum DC output current of 3A/5A. The LT83203/5 is a compact, ultra-low noise, ultra-low emission, high efficiency, 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 LT83203/5 to achieve excellent wideband noise performance. A minimum on-time of 15ns allows high VIN to low VOUT conversion at high frequency.

Eigenschaften

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 93% Efficiency at 2MHz, 12VIN to 3.3VOUTUp to 90% Efficiency at 4MHz, 12VIN to 3.3VOUTInput Voltage Range: 2.8V to 18VOutput Voltage Range: 0V to (VIN − 0.5V)Unity Gain Configuration up to 13V OutputMaximum Continuous Output CurrentLT83205: 5AFast Minimum Switch On-Time: 15nsAdjustable and Synchronizable: 300kHz to 6MHz;Precision Reference: ±0.7% Over Temperature with Remote Sense;Supports Dynamic Output Voltage ControlPin Selectable Forced Continuous Mode or Pulse-Skipping ModeProgrammable Power GoodTiny 15-Lead 3mm × 2mm LFCSP Package;Pin-to-Pin Compatible Family: LT83201 (1A), LT83203 (3A), LT83205 (5A)

Typische Anwendungen

• General Purpose Power Supply, RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers