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PDF FAN5033 Data sheet ( Hoja de datos )
| Número de pieza | FAN5033 | |
| Descripción | Synchronous Buck Controller | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FAN5033 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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January 2007
FAN5033
8-Bit Programmable, 2- to 3-Phase, Synchronous Buck Controller
Features
Description
Selectable 2- or 3-phase operation at up to 1MHz
per phase
±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)
Active current balancing between the output phases
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
0.5V to 1.6V output
the design is programmable by a single resistor value.
The number of phases can be programmed to support
Fully compliant with the Intel® VR10 and VR11
two- or three-phase applications.
specifications
The FAN5033 also includes programmable no-load
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
Programmable soft-start ramp
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.
Desktop PC/Server processor power supplies for
existing and next-generation Intel processors
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
1 page  
Absolute Maximum Rating
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Unless otherwise specified, all other voltages are referenced to GND.
Symbol
Parameter
Min. Typ.
Max.
Unit
VCC Supply Voltage
FBRTN
-0.3 +15 V
-0.3 +0.3 V
RAMPADJ, PWM3
SW1 – SW3
-0.3
VCC + 0.3
V
-10 +25 V
All Other Inputs and Outputs
-0.3 +5.5 V
TJ Operating Junction Temperature
0
+125
°C
TSTG
Storage Temperature
-65
+150
°C
TL Lead Soldering Temperature (10 seconds)
300 °C
TLI Lead Infrared Temperature (15 seconds)
260 °C
θJA Thermal Resistance Junction-to-Ambient(1)
45 °C/W
Note:
1. Junction-to-ambient thermal resistance, θJA, is a strong function of PCB material, board thickness, thickness and
number of copper planes, number of via used, diameter of via used, available copper surface, and attached heat
sink characteristics.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol
VCC
TA
Parameter
Supply Voltage, VCC to GND
Ambient Temperature
Min.
9.6
0
Typ.
12
Max.
14.4
+85
Unit
V
°C
© 2006 Fairchild Semiconductor 2006
FAN5033 Rev. 1.0.0
5 of 39
www.fairchildsemi.com
5 Page 
Table 1: Continued
VID4
VID3
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
VID2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
© 2006 Fairchild Semiconductor 2006
FAN5033 Rev. 1.0.0
VID1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
11 of 39
VID5
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID6
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VOUT (V)
1.46875
1.47500
1.48125
1.48750
1.49375
1.50000
1.50625
1.51250
1.51875
1.52500
1.53125
1.53750
1.54375
1.55000
1.55625
1.56250
1.56875
1.57500
1.58125
1.58750
1.59375
1.60000
0.83125
0.83750
0.84375
0.85000
0.85625
0.86250
0.86875
0.87500
0.88125
0.88750
0.89375
0.90000
0.90625
0.91250
0.91875
0.92500
0.93125
0.93750
0.94375
0.95000
0.95625
0.96250
0.96875
0.97500
0.98125
0.98750
0.99375
1.00000
1.00625
1.01250
1.01875
1.02500
1.03125
1.03750
1.04375
1.05000
1.05625
1.06250
1.06875
1.07500
1.08125
1.08750
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet FAN5033.PDF ] | |
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