The TPS51117 controller offers high efficiency and low power consumption, ideal for POL voltage regulation in laptops. The controller supports D-CAP Mode operation with adjustable On-Time from 100 kHz to 550 kHz, ensuring ease of use and a low number of external components.

• Typical shutdown current below 4.5 µA
• Fast transient response
• Reference accuracy < 1%
• Output range: 0.75 V to 5.5 V
• Input range: 1.8 V to 28 V
• Auto-Skip/PWM-Only mode selection
• Overvoltage and undervoltage protection scheme
• Integrated Diode Boost
• Thermal shutdown and negative current limit
• Internal 1.2-ms voltage softstart