LT83203

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18V, 3A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference

数据手册 (Rev. 0) 产品选型表

产品模型: 2

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产品详情

Silent Switcher^® 3 Architecture

Ultra-Low RMS Noise (10Hz to 100kHz): 4μV_RMS
Ultra-Low Spot Noise: 4nV/√Hz at 10kHz
Ultra-Low EMI Emissions

Ultra-Fast Transient Response

<1μs Transient Recovery Time

High Efficiency at High Frequency

Up to 93% Efficiency at 2MHz, 12V_IN to 3.3V_OUT
Up to 90% Efficiency at 4MHz, 12V_IN to 3.3V_OUT

Input Voltage Range: 2.8V to 18V
Output Voltage Range: 0V to (V_IN − 0.5V)

Unity Gain Configuration up to 13V Output

Maximum Continuous Output Current

LT83203: 3A

Fast Minimum Switch On-Time: 15ns
Adjustable and Synchronizable: 300kHz to 6MHz;
Precision Reference: ±0.7% Over Temperature with Remote Sense;
Supports Dynamic Output Voltage Control
Pin Selectable Forced Continuous Mode or Pulse-Skipping Mode
Programmable Power Good
Tiny 15-Lead 3mm × 2mm LFCSP Package;
Pin-to-Pin Compatible Family: LT83201 (1A), LT83203 (3A), LT83205 (5A)

参考资料

数据手册 1

LT83203/LT83205: 18V, 3A/5A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference (Rev.0) 03/03/2025

用户手册 1

EVAL-LT83203-AZ/EVAL-LT83205-AZ User Guide: 18V, 3A/5A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference (Rev.0) 03/03/2025

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
LT83203RUDB#TRMPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT83203RUDB#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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18V, 3A/5A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference

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产品详情

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 V_IN to low V_OUT conversion at high frequency.

Please see the User Guide for the full description.