概览

优势和特点

  • Wide Input Voltage Range: 2.6V to 5.5V
  • Adjustable Output Voltage Range: 1.8V to 5.5V
  • 2A of Continuous Output Current with VIN ≥ VOUT (Buck Mode and Buck-Boost Mode); Minimum 1A Continuous Output Current with VIN < VOUT (Boost Mode).
  • Low Ripple Buck-Boost Architecture
  • Programmable Soft-Start and VIN UVLO
  • Burst Mode IQ 15μA for High Efficiency at Light Loads
  • Ultrathin, Small Surface Mount Footprint
  • 3.5mm × 4mm × 1.25mm LGA Package

产品详情

The LTM4693 is an ultrathin, highly efficient, 2A buck-boost μModule® DC/DC converter that operates from input voltages above, below or equal to the output voltage. Included in the package are the switching controller, power MOSFETs, inductor and support components. The LTM4693’s advanced topology provides a continuous transfer through all operating modes. VIN operation from 2.6V to 5.5V covers a wide variety of power sources including typical 3.3V and 5V. Output voltage ranging from 1.8V to 5.5V is set by an external resistor. Only a few external components are needed for a typical application.

Selectable Burst Mode® operation reduces quiescent current to 15μA, ensuring high efficiency across the entire load range. To optimize applications for highest efficiency, the switching frequency can be programmed between 1MHz to 4MHz or synchronized to an external clock for noise sensitive circuits.

LTM4693 is available in ultrathin, 3.5mm × 4mm ×1.25mm LGA Package. The LTM4693 is Pb-free and RoHS compliant.

APPLICATIONS

  • Telecom, Datacom (Optical Modules) and Industrial Equipment
  • Medical and Industrial Instruments
  • Wireless RF Transmitter
  • Battery Powered System

产品生命周期 icon-recommended 推荐新设计使用

本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。

工具及仿真模型

LTspice

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。

LTspice

LTspice中提供以下器件型号:

LTM4693

设计资源

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