datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Fairchild Semiconductor Electronic Components Datasheet

FAN5033 Datasheet

Synchronous Buck Controller

No Preview Available !

FAN5033 pdf
January 2007
FAN5033
8-Bit Programmable, 2- to 3-Phase, Synchronous Buck Controller
Features
Description
ƒ Selectable 2- or 3-phase operation at up to 1MHz
per phase
ƒ ±7.7mV worst-case differential sensing error over
The FAN5033 device is a multi-phase buck switching
regulator controller optimized to convert a 12V input
supply to the processor core voltage required by high
performance Intel® processors. It has an internal 8-bit
temperature
DAC that converts a digital voltage identification (VID)
ƒ Active current balancing between the output phases
ƒ Power Good and Crowbar blanking supports
code, sent from the processor, to set the output voltage
between 0.5V and 1.6V in 6.25mV steps. It outputs
PWM signals to external MOSFET drivers that drive the
on-the-fly VID code changes
switching power MOSFETs. The switching frequency of
ƒ 0.5V to 1.6V output
the design is programmable by a single resistor value.
The number of phases can be programmed to support
ƒ Fully compliant with the Intel® VR10 and VR11
two- or three-phase applications.
specifications
The FAN5033 also includes programmable no-load
ƒ Selectable VR10 extended (7-bit) and VR11 (8-bit)
offset and droop functions to adjust the output voltage
VID tables
as awww.DataSheet4U.com function of the load current, as required by the Intel
ƒ Programmable soft-start ramp
ƒ Programmable short-circuit protection and
specifications. The FAN5033 provides an accurate and
reliable short-circuit protection function with an
adjustable over-current set point.
latch-off delay
The FAN5033 is specified over the commercial
Applications
temperature range of 0°C to +85°C and is available in a
32-lead MLP package.
ƒ Desktop PC/Server processor power supplies for
existing and next-generation Intel processors
ƒ VRM modules
Ordering Information
Part Number Temperature Range Pb-Free Package Type Packing Method Quantity
FAN5033MPX
0°C to 85°C
Yes MLP-32 Tape and Reel 3,000 per Reel
Intel® is a registered trademark of Intel Corporation.
© 2007 Fairchild Semiconductor 2006
FAN5033 Rev. 1.0.0
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

FAN5033 Datasheet

Synchronous Buck Controller

No Preview Available !

FAN5033 pdf
Block Diagram
VCC
FAN5033
UVLO
SHUTDOWN
& BIAS
GND
Threshold
EN
+
DAC+OV P
CSREF
+
DAC - UV P
+
PWRGD
DEL AY
RT RAM PADJ
OSCILL ATOR
CURREN T
BALANCING
CIRCUI T
+
CM P
+
CM P
+
CM P
SET EN
RESE T
RESE T
RESE T
2 / 3 - PHASE
DRIVER LOGIC
OD
PWM1
PWM2
PWM3
CROWBAR
CURREN T
LIMI T
SW1
SW2
SW3
NC
ILIMI T
DEL AY
COM P
FB RTN
VIDSE L
CURREN T
LIMI T
CIRCUI T
Z
+
+
PRECISION
REFERENCE
Boot Control
START-UP
CONTRO L
VID
DAC
+
+
DAC
BUFF
VID7 VID6 VID5 VID4 VID3 VID2 VID1 VID0
Figure 1: Block Diagram
© 2007 Fairchild Semiconductor 2006
FAN5033 Rev. 1.0.0
2 of 39
CSCOM P
CSREF
CSSUM
FB
SS
www.fairchildsemi.com


Part Number FAN5033
Description Synchronous Buck Controller
Maker Fairchild Semiconductor
Total Page 30 Pages
PDF Download
FAN5033 pdf
FAN5033 Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 FAN5031 Synchronous Buck Controller Fairchild Semiconductor
Fairchild Semiconductor
FAN5031 pdf
2 FAN5032 8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller Fairchild Semiconductor
Fairchild Semiconductor
FAN5032 pdf
3 FAN5033 Synchronous Buck Controller Fairchild Semiconductor
Fairchild Semiconductor
FAN5033 pdf
4 FAN5037 Adjustable Switching Regulator Controller Fairchild Semiconductor
Fairchild Semiconductor
FAN5037 pdf
5 FAN5038 Dual Voltage Controller for DSP Power Fairchild Semiconductor
Fairchild Semiconductor
FAN5038 pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy