PM6652 Datasheet, PDF (1/53 Pages) STMicroelectronics – Single-phase controller for Intel MVP 6.5 render voltage regulator,

PM6652
Single-phase controller for Intel^® MVP 6.5 render voltage regulator,
CPU and VR11 CPU
Datasheet − production data
Features
■ 4.5 V to 36 V input voltage range
■ 0.3 V to 1.5 V output voltage range
■ IMVP6.5 GPU/CPU and VR11 CPU mode
selection
■ Very fast load transient response using
constant-on-time loop control
■ Remote voltage sensing
■ Programmable droop function
■ 7-bit dynamic voltage positioning (VID)
■ Programmable PWM frequency
■ Lossless current sense with inductor DCR
■ Accurate inductor current sense with R_SENSE
■ Negative current limit
■ Boot diode embedded
■ Latched OVP, UVP and overtemperature
■ Pulse-skipping when suspend state is selected
■ Output voltage ripple compensation
■ Soft-start and soft-end
■ Power good available
■ Current monitor (IMON)
■ Thermal throttling
Applications
■ Intel mobile graphic core IMVP6.5
■ Intel mobile CPU IMVP6.5
■ Intel ATOM^® VR11 based devices
■ Notebook, netbook and nettop computers
■ Handheld devices and PDAs
VFQFPN-32 5x5 mm
Description
The PM6652 is a single-phase, step-down SMPS
controller with high precision 7-bit DAC. It has
been designed to supply the CPU and the
graphics core (render engine) of the Intel^® mobile
platform, according to Intel MVP6.5
specifications.
The PM6652 can also be configured to supply the
7-bit family, VR11 compliant, ATOM^® processors.
The controller, based on constant on-time (COT)
architecture, allows real-time dynamic switching
of the core operating voltages and frequencies,
working in both performance and suspend render
states.
An embedded integrator control loop
compensates the DC voltage error due to the
output ripple.
The high efficiency at light load, achieved with
pulse-skipping working mode, and the extremely
low shutdown and quiescent adsorbed current,
make the PM6652 the ideal choice in battery
powered devices.
Table 1. Device summary
Order codes
Package
PM6652
PM6652TR
VFQFPN-32 5 x 5 mm (exposed pad)
Packaging
Tray
Tape and reel
March 2012
This is information on a product in full production.
Doc ID 16867 Rev 5
1/53
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