L6706 Datasheet, PDF (1/47 Pages) STMicroelectronics – High output voltage accuracy

L6706
VR11.1 single phase controller with integrated driver
Features
■ 8-bit programmable output up to 1.60000 V -
Intel^® VR11.1 DAC
■ High current embedded driver
■ High output voltage accuracy
■ Programmable droop function
■ Imon output
■ Load transient boost LTB Technology™ to
minimize the number of output capacitors
■ Full differential current sense across inductor
■ Differential remote voltage sensing
■ Adjustable voltage offset
■ LSLess startup to manage pre-biased output
■ Feedback disconnection protection
■ Preliminary overvoltage protection
■ Programmable overcurrent protection
■ Programmable overvoltage protection
■ Adjustable switching frequency
■ SSEND and OUTEN signal
■ VFQFPN-40 6x6 mm package with exp. pad
Applications
■ VTT and VAXG rails
■ CPU power supply
■ High density DC/DC converters
VFQFPN-40 6 x 6 mm
Description
The device implements a single phase step-down
controller with integrated high current driver in a
compact 6x6 mm body package with exposed
pad.
The device embeds VR11.x DACs: the output
voltage ranges up to 1.60000 V managing D-VID
with high output voltage accuracy over line and
temperature variations.
Imon capability guarantee full compatibility with
VR11.1 enabling additional power saving
technique.
Programmable droop function allows to supply all
the latest Intel CPU rails.
Load transient boost LTB Technology™ reduces
system cost by providing the fastest response to
load transition.
The controller assures fast protection against load
over current and under / over voltage. Feedback
disconnection prevents from damaging the load in
case of disconnections in the system board.
Table 1. Device summary
In case of over-current, the system works in
constant current mode until UVP.
Order codes
Package
Packing
L6706
L6706TR
VFQFPN-40
Tray
Tape and reel
January 2010
Doc ID 15698 Rev 2
1/47
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