Analog Devices LTC7151S | Demoboard DC2615A

Beschreibung

Demonstration circuit 2615A features the LTC7151S in a high efficiency 1.2V/15A step-down regulator with an input voltage range of 3.1V to 20V and a 1MHz switching frequency. The Silent Switcher®2 technology reduces the switching noise while the internal MOSFETs of the LTC7151S provide high efficiency over a wide input voltage range. No current sense resistor is required.The LTC7151S employs a controlled on-time, valley current mode architecture. This architecture allows for a short minimum on-time which is ideal for high stepdown ratios. In addition, the architecture provides a fast load step response by allowing the switch node pulses to compress after the load steps up – see Figure 6.The LTC7151S data sheet provides a complete description of the IC operation and application information. The data sheet must be read in conjunction with the quick start guide.

Eigenschaften

• Silent Switcher®2 Architecture for Low EMI
• VIN Range: 3.1V to 20V
• VOUT Range: 0.5V to 5.5V
• Differential VOUT Remote Sense
• Adjustable Frequency: 400kHz to 3MHz
• Poly Phase® Operation: Up to 12 Phases
• Output Tracking and Soft-Start
• Reference Accuracy: ±1% Over temperature
• Current Mode Operation for Excellent Line and Load Transient Response
• Accurate 1.2V Run Pin Threshold
• Supports Forced Continuous/Discontinuous Modes
• 28-Lead Thermally Enhanced 4mm × 5mm × 0.74mm LQFN Package

Typische Anwendungen

• Automotive and Industrial Power Supplies, Server Power Applications, Point-of-Load Supply for ASIC, FPGA, DSP, µP, etc.
• Distributed Power Systems

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers