TPS54394PWPR

The TPS54394 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54394 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54394 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive ontime control supports seamless transition between PWM mode at higher load conditions and Ecomode™operation at light loads. Eco-mode™allows the TPS54394 to maintain high efficiency during lighter load conditions. The TPS54394 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V. The TPS54394 is available in a 4.4mm × 5mm 16-pin TSSOP (PWP) and 4mm x 4mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from -40°C to 85°C.

Applications

• Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
• Digital TV Power Supply
• Networking Home Terminal
• Digital Set Top Box (STB)
• DVD Player/Recorder
• Gaming Consoles and Other

Key features

• Fast Transient Response No External Parts Required For Loop Compensation Compatible with Ceramic Output Capacitors
• Wide Input Voltage Range: 4.5 V to 18 V
• Output Voltage Range: 0.76 V to 7 V
• Highly Efficient Integrated FETs Optimized for Low Duty Cycle Applications
• 90 mΩ (High Side) and 60 mΩ (Low Side)
• High Initial Reference Accuracy
• Supports Constant 3 A at Both Channels
• Low-Side rDS(on) Loss-Less Current Sensing
• Fixed Soft Start: 1 ms
• Non-Sinking Pre-Biased Soft Start
• Powergood
• 700 kHz Switching Frequency
• Cycle-by-Cycle Over-Current Limit Control
• Hiccup Timer for Overload Protection
• OCL/UVLO/TSD Protections
• Adaptive Gate Drivers with Integrated Boost PMOS Switch
• OCP Constant Due To Thermally Compensated rDS(on) with 4000ppm/°C
• 16-Pin HTSSOP, 16-Pin VQFN
• Auto-Skip Eco-mode™ for High Efficiency at Light Load