TPS56C231数据手册TI中文资料规格书

描述 Description

The TPS56C231 is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS56C231 has competitive features including a very accurate reference voltage, fast load transient response, and no requirement for external compensation, adjustable current limit, and both Eco-mode and FCCM operation modes for selection at light-load condition through the configuration of the MODE pin. To attain high efficiency at light load, Eco-mode can be selected. To support tight output voltage ripple requirement, FCCM can be selected. The TPS56C231 operates from a –40°C to 125°C junction temperature range.

特性 Features

• 4.5-V to 17-V input range without external bias
• 3.8-V to 17-V input range with external bias
• Supports 12-A continuous output current
• TPS56C231 supports 15-A peak current
• Integrated 7.8-mΩ and 3.2-mΩ MOSFETs
• 0.6-V ±1% reference voltage across a –40°C to 125°C junction temperature range
• 0.6-V to 5.5-V output voltage range
• 146-µA low quiescent current
• D-CAP3™ control mode for fast transient response
• Supports ceramic output capacitors
• Selectable fSW of 400 kHz, 800 kHz, and 1200 kHz
• Selectable FCCM (forced continuous conduction mode) for tight output voltage ripple
• Selectable Eco-mode (auto skip mode) for high light-load efficiency
• Optional external 5-V bias for enhanced efficiency
• Prebiased start-up capability
• Adjustable soft start with a default 1.2-ms soft-start time
• Power-good indicator to monitor output voltage
• Two adjustable current limit settings with hiccup restart: TPS56C231 (14.7 A, 17 A) and TPS56C231L (11.5 A, 13.8 A)
• Non-latched protections for UV, OV, OT, and UVLO
• Pin-to-pin compatible with 12-A TPS56C215, and 8-A TPS568231 and TPS568215
• –40°C to 125°C operating junction temperature
• 3.5-mm × 3.5-mm, 18-pin HotRod™ QFN package