IR3502
Description
The IR3502 control IC combined with an XPHASE3TM Phase IC provides a full featured and flexible way to implement a complete VR11.0 and VR11.1 power solution. The IR3502 provides overall system control and interfaces with any number of Phase ICs, each driving and monitoring a single phase.
Key Features
- 1 to X phase operation with matching Phase IC
- 0.5% overall system set point accuracy
- Daisy-chain digital phase timing provides accurate phase interleaving without external components
- Programmable 250kHz to 9MHz clock oscillator frequency provides per phase switching frequency of 250kHz to 1.5MHz
- Programmable Dynamic VID Slew Rate
- Programmable VID Offset or No Offset
- Programmable Load Line Output Impedance
- High speed error amplifier with wide bandwidth of 30MHz and fast slew rate of 10V/us
- Programmable constant converter output current limit during soft start
- Hiccup over current protection with delay during normal operation
