TPS54527DDAR

The TPS54527 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54527 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54527 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54527 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from a 4.5-V to 18-V input. The output voltage can be programmed from 0.76 V to 6 V. The device also features an adjustable soft-start time. The TPS54527 is available in the 8-pin DDA package, and designed to operate from -40°C to 85°C.

Applications

• Wide Range of Applications for Low Voltage System
• Digital TV Power Supply
• High Definition Blu-ray Disc Players
• Networking Home Terminal
• Digital Set Top Box (STB)

Key features

• D-CAP2™ Mode Enables Fast Transient Response Low Output Ripple and Allows Ceramic Output Capacitor
• Wide Input Voltage Range: 4.5 V to 18 V
• Output Voltage Range: 0.76 V to 6 V
• Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications: 65 mΩ (High Side) and 36 mΩ (Low Side)
• High Efficiency: Less Than 10 μA at Shutdown
• High Initial Bandgap Reference Accuracy
• Adjustable Soft Start
• Prebiased Soft Start
• 650-kHz Switching Frequency
• Cycle-by-Cycle Overcurrent Limit