PM6652 STMicroelectronics, PM6652 Datasheet - Page 34

• Manufacturer Part Number: PM6652
• Description: IC CTLR STEPDOWN SMPS 32VFQFPN
• Manufacturer: STMicroelectronics

Specifications of PM6652

• Applications: Controller, Intel IMVP-6.5™, VR11
• Voltage - Input: 4.5 V ~ 36 V
• Number Of Outputs: 1
• Voltage - Output: 0.3 V ~ 1.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Device description
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Figure 34. IMVP6.5 GFX mode start-up
In CPU and VR11 mode the soft-start programmed voltage is VBOOT; the output voltage
will be driven to the VIDs programmed voltage value only after Tboot delay. When the VR11
mode is selected the CLKEN# signal is not used as output but only as input pin. Refer to
Mode selection section for details.
Figure 6
CPU/VR11 mode.
When the COREON control pin is pulled-down or the shut-down VIDs sequence is selected,
VID[0,...,6]=[1111111], the turn-off sequence is performed. In order to avoid the output
voltage to go under ground, the output capacitor is discharged through a dedicated 7 Ω
(typ.) internal discharge MOSFET, connected between VOUT and SGND pins. When VOUT
voltage is lower than 100 mV the low-side external MOSFET is turned-on. See
page 22
Figure 36. VDAC soft-start voltage slew-rate vs capacitor value
and
and
Figure 19 on page 22
Figure 7 on page 20
Doc ID 16867 Rev 3
show the different turn-on behavior for GFX mode and
for the soft-end waveforms details.
Figure 35. IMPV6.5 CPU mode start-up
Figure 18 on
PM6652