|
|
Número de pieza | FAN5031 | |
Descripción | Synchronous Buck Controller | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FAN5031 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
No Preview Available ! www.DataSheet4U.com
March 2006
FAN5031
8-Bit Programmable, 2 to 4 Phase, Synchronous Buck
Controller
Features
■ Selectable 2, 3, or 4 phase operation at up to 1MHz
per phase
■ ±7.7mV worst-case differential sensing error over
temperature
■ Active current balancing between the output phases
■ Power good and Crowbar blanking supports on-the-fly
VID code changes
■ 0.5V to 1.6V output
■ Fully compliant to both Intel’s VR10 and VR11
specifications
■ Selectable VR10 extended (7 bit) and VR11 (8 bit)
VID tables
■ Programmable soft start ramp
■ Programmable short circuit protection and latch-off
delay
Applications
■ Desktop PC/Server processor power supplies for
existing and next generation Intel processors
■ VRM modules
Description
The FAN5031 device is a multi-phase buck switching
regulator controller, that is optimized to convert a 12V
input supply to the processor core voltage required by
high performance Intel processors. It has an internal 8-bit
DAC that converts a digital voltage identification (VID)
code, that is sent from the processor, to set the output
voltage between 0.5V and 1.6V in 6.25 mV steps. It out-
puts a PWM signals to external MOSFET drivers that, in
turn, drive the switching power MOSFETs. The switching
frequency of the design is easily programmable by a
single resistor value and the number of phases can be
programmed to support 2, 3, or 4 phase applications.
The FAN5031 also includes programmable no-load off-
set and droop functions to adjust the output voltage as a
function of the load current, as required by the Intel spec-
ifications. The FAN5031 also provides an accurate and
reliable short circuit protection function with an adjust-
able over current set-point.
The FAN5031 is specified over the commercial tempera-
ture range of 0°C to +85°C and is available in a 40-lead
MLP package.
Ordering Information
Part Number
FAN5031MPX*
*Lead free part
Temperature
Range
0°C to 85°C
Package Type
MLP-40
Packing Method
Tape and Reel
Quantity per
Reel
3,000
©2006 Fairchild Semiconductor Corporation
FAN5031 Rev. 1.0.1
1
www.fairchildsemi.com
1 page |
Páginas | Total 3 Páginas | |
PDF Descargar | [ Datasheet FAN5031.PDF ] |
Número de pieza | Descripción | Fabricantes |
FAN5031 | Synchronous Buck Controller | Fairchild Semiconductor |
FAN5032 | 8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller | Fairchild Semiconductor |
FAN5033 | Synchronous Buck Controller | Fairchild Semiconductor |
FAN5037 | Adjustable Switching Regulator Controller | Fairchild Semiconductor |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |