NCP6343中文资料3 A 处理器 - 带动态电压缩放的内存供应，I2C 编程瞬变负载帮助器数据手册ONSEMI规格书

描述 Description

The NCP6343 is a synchronous buck converter optimized to supply recent micro processors (ARM core processor, GPU), memories, that demand high power at low voltages of portable applications powered by one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries.The device is able to deliver up to 3.0 A, with programmable output voltage from 0.6 V to 1.4 V. It could share the same output rail with another DCDC/LDO and works as a transient load helper.Operation at a 3 MHz switching frequency allows the use of small components. Synchronous rectification and automatic PWM/PFM transitions improve overall solution efficiency.The NCP6343 is in a space saving, low profile 1.99 x 1.34 mm CSP-15 package.

特性 Features

• 2.3 V to 5.5 V Input Voltage Range
• 3 MHz Switching Frequency
• DVS supportthrough I2C
• Enabling with pins or I2C
• IC access in off mode
• Transient Load Helper
• Share the same output rail with another DCDC/LDO without sinking current on shared rail

应用 Application

• Battery powered applications
• Power supply for processor with low core voltage
• LP-DDR Memory
• Cellular phones, smart phones, tablets

简介

NCP6343属于集成电路（IC）的稳压器-DC-DC开关稳压器。由ONSEMI制造生产的NCP6343稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。