LT1946A - LT1946A是2.7MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start

LT1946A是LINEAR凌力尔特公司的一款内部电源开关产品，LT1946A是LT1946A是2.7MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start，本站介绍了LT1946A的封装应用图解、特点和优点、功能等，并给出了与LT1946A相关的LINEAR元器件型号供参考。

LT1946A - LT1946A是2.7MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start - 内部电源开关 - 电源管理 - 凌力尔特

LT1946A - 2.7MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start

LT1946A - 2.7MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start - Linear Technology（凌力尔特）

功能描述

The LT®1946A is a fixed frequency step-up DC/DC convertercontaining an internal 1.5A, 36V switch. Capable ofgenerating 12V at 430mA from a 5V input, the LT1946A isideal for powering large TFT-LCD panels. The LT1946Aswitches at 2.7MHz, allowing the use of tiny, low profileinductors and low value ceramic capacitors. Loop compensationcan be either internal or external, giving the userflexibility in setting loop compensation and allowing optimizedtransient response with low ESR ceramic outputcapacitors. Soft-start is controlled with an external capacitorwhich determines the input current ramp rate duringstart up. The 8-lead MSOP package and high switchingfrequency ensure a low profile overall solution less than1.1mm high.

特点

1.5A, 36V Internal Switch

2.7MHz Switching Frequency

Integrated Soft-Start Function

Adjustable Output from VIN to 35V

Low VCESAT Switch: 300mV at 1.5A (Typical)

12V at 430mA from a 5V Input

Small Thermally Enhanced 8-Lead MSOP Package

应用

TFT-LCD Bias Supplies

GPS Receivers

DSL Modems