TPS51113数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

The TPS51113 and TPS51163 are cost-optimized, feature rich, single-channel synchronous-buck controllers that operates from a single 4.5-V to 13.2-V supply and can convert an input voltage as low as 1.5 V.The controller implements voltage mode control with a fixed 300-kHz (TPS51113) and 600-kHz (TPS51163) switching frequency. The overcurrent (OC) protection employs the low-side RDS(on) current sensing and has user-programmable threshold. The OC threshold is set by the resistor from LDRV_OC pin to GND. The resistor value is read when the over-current programming circuit applies 10 µA of current to the LDRV_OC pin during the calibration phase of the start-up sequence. The TPS51113/TPS51163 also supports output pre-biased startup. The strong gate drivers with low deadtime allow for the utilization of larger MOSFETs to achieve higher efficiency. An adaptive anti-cross conduction scheme is used to prevent shoot-through between the power FETs.

特性 Features

• Flexible Power Rails: 5 V to 12 V
• Reference: 800 mV ± 0.8%
• Voltage Mode Control
• Support Pre-biased Startup
• Programmable Overcurrent Protection with Low-Side RDS(on) Current Sensing
• Fixed 300-kHz (TPS51113) and 600-kHz (TPS51163) Switching Frequency
• UV/OV Protections and Power Good Indicator
• Internal Soft-start
• Integrated High-Current Drivers Powered by VDD
• 10-Pin 3 × 3 SON Package
• APPLICATIONS
• Server and Desktop Computer Subsystem Power Supplies (MCH, IOCH, PCI, Termination)
• Distributed Power Supplies
• General DC-DC Converters