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PDF L6716 Data sheet ( Hoja de datos )
| Número de pieza | L6716 | |
| Descripción | 2/3/4 phase controller | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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L6716
2/3/4 phase controller with embedded drivers for Intel VR11.1
Data Brief
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
VFQFPN48 7 mm x 7 mm
(exposed pad)
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.
Table 1.
Device summary
Order codes
L6716
L6716TR
Package
VFQFPN48 7 mm x 7 mm
Packaging
Tube
Tape and reel
May 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
1/3
www.st.com
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| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet L6716.PDF ] | |
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