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L6716TR датащи(PDF) 1 Page - STMicroelectronics

номер детали L6716TR
подробное описание детали  2/3/4 phase controller with embedded drivers for Intel VR11.1
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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Data Brief
For further information contact your local STMicroelectronics sales office.
May 2008
Rev 1
1/3
3
L6716
2/3/4 phase controller with embedded drivers for Intel VR11.1
Features
Load transient boost LTB Technology™ to
minimize the number of output capacitors
2 or 3-phase operation with internal driver
4-phase operation with external PWM driver
signal
PSI input with programmable strategy
Imon output
0.5 % output voltage accuracy
8 bit programmable output up to 1.60000 V -
Intel VR11.1 DAC - backward compatible with
VR10/VR11
Full differential current sense across inductor
Differential remote voltage sensing
Adjustable voltage offset
LSLess startup to manage pre-biased output
Feedback disconnection protection
Preliminary over voltage protection
Programmable over current protection
Programmable over voltage pretection
Adjustable switching frequency
SS_END and OUTEN signal
VFQFPN48 7 mm x 7 mm package with
exposed pad
Applications
High current VRM/VRD for desktop / server /
workstation CPUs
High density DC-DC converters
Description
The device implements a two-to-four phases step-
down controller with three integrated high current
drivers in a compact 7x7 mm body package with
exposed pad.
Load transient boost LTB Technology™ reduces
system cost by providing the fastest response to
load transition therefore requiring less bulk and
ceramic output capacitors to satisfy load transient
requirements.
The device embeds VR11.x DACs: the output
voltage ranges up to 1.60000 V managing D-VID
with ± 0.5 % output voltage accuracy over line
and temperature variations.
The controller assures fast protection against load
over current and under / over voltage (in this last
case also before UVLO). Feedback disconnection
prevents from damaging the load in case of
disconnections in the system board.
In case of over-current, the system works in
constant current mode until UVP.
VFQFPN48 7 mm x 7 mm
(exposed pad)
Table 1.
Device summary
Order codes
Package
Packaging
L6716
VFQFPN48 7 mm x 7 mm
Tube
L6716TR
Tape and reel
www.st.com


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