NCP6153
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General
The NCP6153 is a dual output four/three phase plus one phase dual edge modulated multiphase PWM controller designed
to meet the Intel VR12 specifications with a serial SVID control interface. The NCP6153 implements PS0, PS1, PS2 and PS3
power saving states. It is designed to work in notebook, desktop, and server applications.
For Core Rail:
Power Status PWM Output Operating Mode
PS0 Multi−phase PWM interleaving output
PS1 Single−phase RPM CCM mode (PWM1 only, PWM2~4 stay in Mid)
PS2 Single−phase RPM DCM mode (PWM1 only, PWM2~4 stay in Mid)
PS3 Single−phase RPM DCM mode (PWM1 only, PWM2~4 stay in Mid)
For AUX Rail:
Power Status PWM Output Operating Mode
PS0 PWM interleaving with Core Rail / RPM CCM mode
PS1 PWM interleaving with Core Rail / RPM CCM mode
PS2 RPM DCM mode
PS3 RPM DCM mode
VID code change is supported by SVID interface with three options as below:
Option
SVID Command
Code
Feature
Register Address
(Indicating the slew rate of VID code change)
SetVID_Fast 01h
> 10 mV/ms VID code change
slew rate
24h
SetVID_Slow 02h = 1/4 of SetVID_Fast VID
code change slew rate
25h
SetVID_Decay 03h No control, VID code down N/A
Serial VID
The NCP6153 supports the Intel serial VID interface. It communicates with the microprocessor through three wires (SCLK,
SDIO, ALERT#). The table of supported registers is shown below.
Index Name Description Access Default
00h Vendor ID Uniquely identifies the VR vendor. The vendor ID assigned by Intel to
ON Semiconductor is 0x1Ah
R 0x1Ah
01h Product ID Uniquely identifies the VR product. The VR vendor assigns this number. R 0x51
02h Product
Revision
Uniquely identifies the revision or stepping of the VR control IC. The VR vendor as-
signs this data.
R 0x0A
05h Protocol ID Identifies the SVID Protocol the controller supports R 0x01
06h Capability Informs the Master of the controller’s Capabilities, 1 = supported, 0 = not supported
Bit 7 = Iout_format. Bit 7 = 0 when 1A = 1LSB of Reg 15h. Bit 7 = 1 when Reg 15 FFh
= Icc_Max. Default = 1
Bit 6 = ADC Measurement of Temp Supported = 1
Bit 5 = ADC Measurement of Pin Supported = 0
Bit 4 = ADC Measurement of Vin Supported = 0
Bit 3 = ADC Measurement of Iin Supported = 0
Bit 2 = ADC Measurement of Pout Supported = 1
Bit 1 = ADC Measurement of Vout Supported = 1
Bit 0 = ADC Measurement of Iout Supported = 1
R 0xC7
07h Generic ID 51h or 31h, depending on the generic R 51h or
31h
10h Status_1 Data register read after the ALERT# signal is asserted. Conveying the status of the VR. R 00h
