TPS40100数据手册集成电路（IC）的DC-DC开关控制器规格书PDF

描述 Description

The TPS40100 is a mid voltage, wide-input (between 4.5 V and 18 V), synchronous, step-down controller. The TPS40100 offers programmable closed loop soft-start, programmable UVLO (with programmable hysteresis), programmable inductor sensed current limit and can be synchronized to other timebases. The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic.

特性 Features

• Operation over 4.5 V to 18 V Input Range
• Adjustable Frequency (Between 100 kHz and 600 kHz) Current Feedback Control
• Output Voltage Range From 0.7 V to 5.5 V
• Simultaneous, Ratiometric and Sequential Startup Sequencing
• Adaptive Gate Drive
• Remote Sensing (Via Separate GND/PGND)
• Internal Gate Drivers for N-channel MOSFETs
• Internal 5-V Regulator
• 24-Pin QFN Package
• Thermal Shutdown
• Programmable Overcurrent Protection
• Power Good Indicator
• 1%, 690-mV Reference
• Output Margining, 3% and 5%
• Programmable UVLO (with Programmable Hysteresis)
• Frequency Synchronization
• APPLICATIONS
• Servers
• Networking Equipment
• Cable Modems and Routers
• XDSL Modems and Routers
• Set-Top Boxes
• Telecommunications Equipment
• Power Supply Modules