PMP405 同步降压/线性参考设计

	PMP405
名称	Synchronous Buck/Linear Reference Design
状态	ACTIVE
价格（US$）

PMP405 描述

This reference design is for four synchronous buck converters and a +12V linear regulator. The +12V linear regulator is a UA78M12 and can provide 100mA from a 15V input. The +1.2V buck converter uses the TPS40001 controller and provides 1.8A from a 5V input. The other switching regulators use the TPS40051 controller. The +5V buck converter provides 1.7A from a 22V or 15V input. The +3.3V buck converter provides 4A from 22V or 15V as well. A 2.5V buck converter provides 3A from the 15V input. The 5V, 3.3V and 2.5V converters are synchronized to the TPS40001 oscillator. This lowers input ripple current and reduces EMI. Each converter can be turned on/off from a single control signal. Grounding the DAM_CTL signal turns all the converters on. The 1.2V, 2.5V, 3.3V, and 5V converters have additional switched outputs that are enabled when the 22V input is present. If the 22V input is not present, the switched outputs are turned off and the unswitched outputs are not affected.

PMP405 应用技术支持与电子电路设计开发资源下载

1. TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls

PMP405 相关产品

器件型号	名称	产品系列
TPS40001	低输入电压模式同步降压控制器	非隔离式开关 DC/DC 调节器
TPS40055	宽输入 (8V-40V) 最高频率 1MHz 的同步降压控制器，具有输出驱动/吸入电流	非隔离式开关 DC/DC 调节器
UA78M12	3 引脚 500mA 固定 12V 正电压稳压器	线性稳压器