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Fairchild Semiconductor Electronic Components Datasheet

FDMF5820DC Datasheet

Smart Power-Stage

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September 2013
FDMF5820DC – Smart Power Stage (SPS) Module
with Integrated Temperature Monitor
Features
Ultra-Compact 5 mm x 5 mm PQFN Copper-Clip
Package with Flip Chip Low-Side MOSFET and
Dual Cool Architecture
High Current Handling: 60 A
3-State 3.3 V PWM Input Gate Driver
Dynamic Resistance Mode for Low-Side Drive
(LDRV) Slows Low-Side MOSFET during Negative
Inductor Current Switching
Auto DCM (Low-Side Gate Turn Off) Using
ZCD# Input
Thermal Monitor for Module Temperature Reporting
Programmable Thermal Shutdown (P_THDN)
HS-Short Detect Fault# / Shutdown
Dual Mode Enable / Fault# Pin
Internal Pull-Up and Pull-Down for ZCD# and
EN Inputs, respectively
Fairchild PowerTrench® MOSFETs for Clean
Voltage Waveforms and Reduced Ringing
Fairchild SyncFET™ Technology (Integrated
Schottky Diode) in Low-Side MOSFET
Integrated Bootstrap Schottky Diode
Optimized / Extremely Short Dead-Times
Under-Voltage Lockout (UVLO) on VCC
Optimized for Switching Frequencies up to 1.5 MHz
PWM Minimum Controllable On-Time: 30 ns
Low Shutdown Current: < 3 µA
Optimized FET Pair for Highest Efficiency:
10 ~ 15% Duty Cycle
Operating Ambient Temperature Range:
-40°C to +125°C
Fairchild Green Packaging and RoHS Compliance
Description
The SPS 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
FDMF5820DC integrates a driver IC with a bootstrap
Schottky diode, two power MOSFETs, and a thermal
monitor into a thermally enhanced, ultra-compact, 5 mm
x 5 mm package.
With an integrated approach, the SPS switching power
stage is optimized for driver and MOSFET dynamic
performance, minimized system inductance, and power
MOSFET RDS(ON). The SPS family uses Fairchild's high-
performance PowerTrench® MOSFET technology,
which reduces switch ringing, eliminating the need for a
snubber circuit in most buck converter applications.
A driver IC with reduced dead times and propagation
delays further enhances the performance. A thermal
monitor function warns of a potential over-temperature
situation. A programmable thermal shutdown function
turns off the driver if an over-temperature condition
occurs. The FDMF5820DC incorporates an Auto-DCM
Mode (ZCD#) for improved light-load efficiency. The
FDMF5820DC also provides a 3-state 3.3 V PWM input
for compatibility with a wide range of PWM controllers.
Applications
Servers and Workstations, V-Core and Non-V-Core
DC-DC Converters
Desktop and All-in-One Computers, V-Core and
Non-V-Core DC-DC Converters
High-Performance Gaming Motherboards
High-Current DC-DC Point-of-Load Converters
Networking and Telecom Microprocessor Voltage
Regulators
Small Form-Factor Voltage Regulator Modules
Ordering Information
Part Number Current Rating
Package
FDMF5820DC
60 A
31-Lead, Clip Bond PQFN SPS, 5.0 mm x 5.0 mm Package
Top Mark
FDMF5820DC
© 2013 Fairchild Semiconductor Corporation
FDMF5820DC • Rev. 1.0.0
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

FDMF5820DC Datasheet

Smart Power-Stage

No Preview Available !

Application Diagram
Figure 1. Typical Application Diagram
Functional Block Diagram
© 2013 Fairchild Semiconductor Corporation
FDMF5820DC • Rev. 1.0.0
Figure 2. Functional Block Diagram
2
www.fairchildsemi.com


Part Number FDMF5820DC
Description Smart Power-Stage
Maker Fairchild Semiconductor
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