NCP5217: Synchronous Buck Controller, Single
The NCP5217A is a synchronous step-down controller for high performance battery-power systems. The NCP5217A includes a high efficiency PWM controller. A pin is provided to enable or disable force PWM mode of operation. An internal power good voltage monitor tracks the SMPS output. NCP5217A also features soft-start sequence, UVLO for VCC and switcher, overvoltage protection, overcurrent protection, undervoltage protection and thermal shutdown. The IC is packaged in QFN-14.
Features- 0.8% accuracy 0.8 V reference
- 4.5 V to 27 V battery/adapter voltage range
- Selectable power saving mode/force PWM mode
- Lossless inductor current sensing
- Programmable adaptive voltage positioning (AVP)
- Input supply feedforward control
- Internal Soft-Start
- Integrated output discharge (Soft Stop)
- Built-in adaptive gate driver
- PGOOD indication
- Overvoltage, undervoltage and overcurrent protection
- Thermal shutdown
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Application Notes (1)
Package Drawings (1)
Simulation Models (1)
Data Sheets (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| NCP5217AGEVB | Active | Pb-free | Synchronous Step-Down Controller Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP5217AMNTXG | Active | Pb-free
Halide free | QFN-14 | 485AL | 1 | Tape and Reel | 3000 | $0.3067 |
Specifications
| Product | Topology | Phases | Control Mode | VCC Min (V) | VCC Max (V) | fSW Typ (kHz) | tres Typ (ns) |
|---|
| NCP5217AMNTXG | Step-Down | 1 | Current/Voltage Mode | 4.5 | 27 | 300 | |
