TPS40131中文资料具有集成 Mosfet 驱动器的二相同步降压控制器数据手册TI规格书

描述 Description

The TPS40131 is a two-phase synchronous buck controller thatis optimized for low-output voltage, high-output current applications powered from a supply between 1 V and 40 V. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.
Each phase can be operated at a switching frequency up to 1 MHz, resulting in an effective ripple frequency of up to 2 MHz at the input and the output. The two phases operates 180 degrees out-of-phase.

特性 Features

• Supports 5-V Output
• Operates With Pre-Biased Outputs
• Requires VIN5 @ 50 mA (typ) Depending on External MOSFETs and Switching Frequency
• Programmable Switching Frequency up to 1 MHz/Phase
• Better than 1% Internal 0.7-V Reference
• Programmable Input Undervoltage Lockout
• Resistive or Inductor’s DCR Current Sensing
• Can Be Used with TPS40120 to Provide a 6-Bit Digitally Controlled Output
• Graphic Cards
• Networking Equipment
• DC Power Distributed Systems