illustrate

The TPS51117 is a cost-effective, POL regulated synchronous buck controller for notebook applications. The controller is specifically designed for D-Day mode operation of adaptive on-time, providedEasy to use, a small external component count, and fast transient response. Automatic skipping of high efficiency drops to milliamperes load range, or low-noise PWM operation read-only mode selection.

The current sense overcurrent of the guarantee plan is positive, and the negative overcurrent is low-side_targetR_DS（ON）Detection and temperature compensation. The device receives 5 V (4.5 V to 5.5 V) from another regulated supply, such as the TPS51120 or TPS51020. The converted input can be VBAT or a 5 V supply, ranging from 1.

characteristic

• High efficiency, low power consumption, typical shutdown current of 4.5μA
• Fixed frequency simulationOn-time control, adjustable from 100 kHz to 550 kHz
• D - 100th™ mode - load step response of ns
• "1% initial reference accuracy
• Output voltage range: 0.75 V to 5.5 V
• Wide input voltage range: 1.8 V to 28 V
• Optional Auto-Skip/PWM-Only operation
• Temperature compensated (4500 ppm/°C) on the low side_targetR_{DS (top)}Overcurrent detection
• Negative overcurrent limit
• Integrated boost diode
• Integrated overvoltage protection/UVP and thermal shutdown
• Power good signal
• Internal 1.2 ms voltage soft-start
• Integrated output discharge (Softstop)
• apply
  • laptop
  • I/O power
  • System power