TPS51117 Overview
The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive OnTime D-CAP mode. This mode provides ease-of-use, low external ponent count, and fast transient response.
TPS51117 Key Features
- 1 High Efficiency, Low Power Consumption, 4.5-μA Typical Shutdown Current
- Fixed Frequency Emulated On-Time Control, Adjustable from 100 kHz to 550 kHz
- D-CAP™ Mode With 100-ns Load Step Response
- < 1% Initial Reference Accuracy
- Output Voltage Range: 0.75 V to 5.5 V
- Wide Input Voltage Range: 1.8 V to 28 V
- Selectable Auto-Skip/PWM-Only Operation
- Temperature pensated (4500 ppm/°C)
- Negative Overcurrent Limit
- Integrated Boost Diode