| Input Voltage (with external bias) |
2.7V to 18V |
| Input Voltage (without external bias) |
4V to 18V |
| Output Voltage |
0.4V to 5.5V |
| Current Support |
Supports 50A single – phase (Stacking disabled by default) |
| Rdson |
Rdson_HS = 2.6mΩ, Rdson_LS = 1mΩ |
| Operating Frequency |
400kHz to 2MHz (four discrete settings through pin – strap, additional settings through PMBus) |
| PMBus Programmable |
Revision 1.5 compliant with PASSKEY security feature; Input voltage, output voltage, output current, temperature telemetry; Programmable overcurrent, overvoltage, undervoltage, overtemperature protections; Includes single command write function in stacked configuration; Extended write protection feature; Non – volatile memory to store configuration settings |
| Output Voltage Programming Methods |
Internal resistor divider (discrete settings) with boot – up voltage selected by pin – strapping; External resistor divider (continuous settings) with boot – up voltage selected by VBOOT |
| Voltage Accuracy |
Precision voltage reference and differential remote sense for high output accuracy; ± 0.5% DAC accuracy from 0°C to 85°C junction; ± 0.85% VOUT tolerance from – 40°C to 125°C junction |
| FCCM/DCM |
Selectable FCCM/DCM in single phase only |
| Start – up |
Start – up without PMBus communication through pin – strapping; Safe start – up into prebiased output |
| Soft – start Time |
0.5ms to 16ms programmable soft – start time |
| Control Topology |
D – CAP4 control topology with fast transient response, supporting all ceramic output capacitors |
| Loop Compensation |
Programmable internal loop compensation |
| Current Limit |
Selectable cycle – by – cycle valley current limit |
| Power – good Output |
Open – drain power – good output |
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