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PDF FDMF6706B Data sheet ( Hoja de datos )
| Número de pieza | FDMF6706B | |
| Descripción | High-Frequency DrMOS Module | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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March 2012
FDMF6706B - Extra-Small, High-Performance, High-
Frequency DrMOS Module
Benefits
Ultra-Compact 6x6mm PQFN, 72% Space-Saving
Compared to Conventional Discrete Solutions
Fully Optimized System Efficiency
Clean Switching Waveforms with Minimal Ringing
High-Current Handling
Features
Over 93% Peak-Efficiency
High-Current Handling of 45A
High-Performance PQFN Copper-Clip Package
3-State 3.3V PWM Input Driver
Skip-Mode SMOD# (Low-Side Gate Turn Off) Input
Thermal Warning Flag for Over-Temperature
Condition
Driver Output Disable Function (DISB# Pin)
Internal Pull-Up and Pull-Down for SMOD# and
DISB# Inputs, Respectively
Fairchild PowerTrench® Technology MOSFETs for
Clean Voltage Waveforms and Reduced Ringing
Fairchild SyncFET™ (Integrated Schottky Diode)
Technology in the Low-Side MOSFET
Integrated Bootstrap Schottky Diode
Adaptive Gate Drive Timing for Shoot-Through
Protection
Under-Voltage Lockout (UVLO)
Optimized for Switching Frequencies up to 1MHz
Low-Profile SMD Package
Fairchild Green Packaging and RoHS Compliance
Based on the Intel® 4.0 DrMOS Standard
Description
The XS™ DrMOS family is Fairchild’s next-generation,
fully optimized, ultra-compact, integrated MOSFET plus
driver power stage solution for high-current, high-
frequency, synchronous buck DC-DC applications. The
FDMF6706B integrates a driver IC, two power MOSFETs,
and a bootstrap Schottky diode into a thermally
enhanced, ultra-compact 6x6mm PQFN package.
With an integrated approach, the complete switching
power stage is optimized for driver and MOSFET
dynamic performance, system inductance, and power
MpeOrfSorFmEaTncReDS(OPNo).wXeSrT™renDcrhM®OSMuOsSeFs EFTairctheicldh'ns ohloigghy-,
which dramatically reduces switch ringing, eliminating
the snubber circuit in most buck converter applications.
A new driver IC with reduced dead times and
propagation delays further enhances performance. A
thermal warning function warns of potential over-
temperature situations. FDMF6706B also incorporates
features such as Skip Mode (SMOD) for improved light-
load efficiency, along with a Three-state 3.3V PWM
input for compatibility with a wide range of PWM
controllers.
Applications
High-Performance Gaming Motherboards
Compact Blade Servers, V-Core and Non-V-Core
DC-DC Converters
Desktop Computers, V-Core and Non-V-Core
DC-DC Converters
Workstations
High-Current DC-DC Point-of-Load (POL)
Converters
Networking and Telecom Microprocessor Voltage
Regulators
Small Form-Factor Voltage Regulator Modules
Ordering Information
Part Number Current Rating
Package
Top Mark
FDMF6706B
45A 40-Lead, Clipbond PQFN DrMOS, 6.0mm x 6.0mm Package FDMF6706B
© 2011 Fairchild Semiconductor Corporation
FDMF6706B • Rev. 1.0.1
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
1 page  
2. Operating at high VIN can create excessive AC overshoots on the VSWH-to-GND and BOOT-to-GND nodes
during MOSFET switching transients. For reliable DrMOS operation, VSWH-to-GND and BOOT-to-GND must
remain at or below the Absolute Maximum Ratings shown in the table above. Refer to the “Application
Information” and “PCB Layout Guidelines” sections of this datasheet for additional information.
© 2011 Fairchild Semiconductor Corporation
FDMF6706B • Rev. 1.0.1
5
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
5 Page 
Typical Performance Characteristics (Continued)
Test Conditions: VIN=12V, VOUT=1.0V, VCIN=5V, VDRV=5V, LOUT=320nH, TA=25°C, and natural convection cooling,
unless otherwise specified.
2.2
TA = 25°C
2.0
1.8
VIH_SMOD
2.0
VCIN = 5V
1.9
1.8
1.7
VIH_SMOD
1.6
1.6 VIL_SMOD
VIL_SMOD
1.5
1.4
1.4
1.2
4.50
4.75
5.00
5.25
Driver Supply Voltage, VCIN (V)
5.50
Figure 18. SMOD# Thresholds vs. Driver
Supply Voltage
-9.0
VCIN = 5V
-9.5
1.3
-50
-25 0 25 50 75 100 125
Driver IC Junction Temperature (oC)
150
Figure 19. SMOD# Thresholds vs. Temperature
2.00
VCIN = 5V
1.90
-10.0
-10.5
1.80
1.70
VIH_DISB
-11.0
-11.5
1.60
1.50
VIL_DISB
-12.0
-50
-25 0
25 50 75 100 125
Driver IC Junction Temperature, TJ (oC)
150
Figure 20. SMOD# Pull-Up Current vs. Temperature
2.1
2.0 TA = 25oC
1.9
VIH_DISB
1.8
1.7
1.6 VIL_DISB
1.5
1.4
1.3
4.50
Figure 22.
4.75 5.00 5.25
Driver Supply Voltage, VCIN (V)
5.50
Disable Thresholds vs. Temperature
1.40
-50
-25 0 25 50 75 100 125
Driver IC Junction Temperature, TJ (°C)
Figure 21. Disable Thresholds vs. Driver
Supply Voltage
150
12.0
11.5
VCIN = 5V
11.0
10.5
10.0
9.5
9.0
8.5
8.0
-50
-25 0 25 50 75 100 125
Driver IC Junction Temperature (oC)
150
Figure 23. Disable Pull-Down Current vs.
Temperature
© 2011 Fairchild Semiconductor Corporation
FDMF6706B • Rev. 1.0.1
11
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet FDMF6706B.PDF ] | |
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