DC2243A，LT3668EMSE 降压加双后置稳压器 LDO 演示板，7V = VIN = 40V，VOUT1 = 6V @ 0.4A，VOUT2 = 5V @ 0.2A，VOUT3 = 5V @ 0.2A

使用 Analog Devices 的 LT3668EMSE#PBF 的参考设计

设计简介

DC2243A 演示电路 2243A 是一款三重电源，包括一个 400mA 降压稳压器和两个采用 LT3668 的 200mA 低压差 (LDO) 线性跟踪稳压器。该演示电路设计用于 7V 至 40V 输入的一个 6V 输出和两个 5V 输出。两个 LDO 输出配置为开关稳压器输出的后置稳压器。三个输出通道的总电流能力高达 400mA，而两个 LDO 稳压器各可达 200mA

说明

DC2243A, Demonstration Circuit 2243A is a triple power supply that includes one 400mA step-down regulator and two 200mA low dropout (LDO) linear tracking regulators featuring the LT3668. The demo circuit is designed for one 6V and dual 5V outputs from a 7V to 40V input. Two LDO outputs are configured as post-regulators of the switching regulator output. The total current capability of three output channels is up to 400mA, while the two LDO regulators are capable of 200mA each

主要特色

Conversion Type

DC to DC
Input Voltage

4 to 70 V
Output Voltage

5|5|6 V
Output Current

0.2@5V|0.2@5V|0.4@6V A
Efficiency

90 %
Topology

Buck

参考设计下载

相关器件

器件	类型	描述	数据手册
LT3668EMSE#PBF	DC to DC Converter and Switching Regulator Chip	Conv DC-DC 1.6V to 45V Step Down Triple-Out 1.2V to 39.4V 0.4A/0.4A/0.4A Automotive 16-Pin MSOP EP Tube	点击下载