NCP81233: Multi-Phase Controller, Configurable, 4.5 V to 20 V, I2C
Description: The NCP81233 is a multi-phase controller capable o...
The NCP81233 is a multi-phase controller capable of operating as a 1, 2, 3, 4, or 6 phase controller. The device offers an I2C interface can be used for configuring the output voltage, slew rate, overvoltage and undervoltage thresholds, and input UVLO.
The NCP81233 provides the PWM signal to interface to DrMOS and can support both 3.3V/5V logic. The device features remote sense for maintaining the voltage accuracy for high current designs. Differential current sense can be used for inductor DCR sensing or with the Iout signal from the DrMOS. The device allows Vout and Iout to be read out through the I2C interface.
The part can be interfaced to the NCP81162 phase double circuitry to allow for operation up to 12 phases.
Selectable 1,2,3,4 or 6 phase operation - Scalability allows same IC solution to be used for multiple rails
Supports up to 12 phases using phase doublers - Allow flexibility for higher current designs
I2C configuration - Flexibility in design
4.5V to 20V - Ideal for 12V bus designs
Differential current sense - Supports DCR or IMON sense
Remote differential voltage sense - Better output voltage accuracy
Supports 3.3V/5V PWM - Allows use of wide range of DrMOS solutions
Report Iout and Vout - Monitoring capability
Overcurrent, Overvoltage Voltage, and Thermal Protection - Protects against faults
Technical Documentation & Design Resources
Product Change Notification
Availability and Samples
Compliance: Pb-free Halide free
Description: Multi-Phase Controller, Configurable, 4.5 V to 20 V, I2C
Package Type: QFN-52
Package Case Outline: 485BE
Container Type: REEL
Container Qty: 2500
Market Leadtime (weeks):4 to 8
VCC Min (V):
VCC Max (V):
fSW Typ (kHz):
200 to 1200