DC-DC VR System Solution Telecom/Datacom 01_00 | Mar 11, 2015 | PDF | 420 kb

System Solution
Digital VR Controller and DrBlade™ 2 Power Stage
DC/DC Solution for FPGA, ASSP and ASIC in Datacom/Telecom
Infineon’s digital voltage regulation system solution combining 4th Generation VR Controller
and DrBlade™ 2 power stage provides highest configurability with minimum external
component count. It meets increasingly stringent voltage regulation requirements of next
generation FPGA, ASSP and ASICs in today’s medium and high current PoL applications
used in Telecom/Datacom environments. The digital multi-phase and multi-rail controllers
enables OEMs and ODMs to improve efficiency and total cost of ownership while increasing
power density and optimizing the total system footprint of the voltage regulator.
The I2C/PMBus interface connects the digital controllers to the application system
and provides real time telemetry information, monitoring and control capabilities.
Small, highly efficient and thermally enhanced power stages in the novel RoHS 2016
compliant Blade packaging technology maximize power density and save PCB real estate.
Continuous innovation in FET, driver and controller technology enable peak efficiencies
above 95% to maximize system performance. The extensively validated system approach
offers comprehensive telemetry, sense and protection features for superior system
robustness as well as higher reliability and comes with the PowerCode™ Graphic User
Interface (GUI) to program controller parameters and tune the VR while in operation.
Furthermore Infineon has a highly trained worldwide engineering structure to provide
high quality support from design to manufacturing.
Application Diagram
Our power architectures address all needs of ASICs, ASSP and FPGA in Networking Application.
VCORE
Power
Supply
DrBlade™ 2
MultiPhase
PWM
Controller
Driver
www.infineon.com/systemsolution-dcdc
Main Features
Multiphase & multi-rail in single chip
„„ 60 A max average load current
„„ Accurate (tele)metry: I, V, T°...
„„ Digital configuration
„„ Highest Vout (setpoint) accuracy
„„ 4.5 V to 16 V input voltage
„„
Key Benefits
„„
Highest power efficiency (peak > 95%)
„„ Minimum solution footprint
„„ System stability and robustness
„„ Fast and easy system optimization
Applications
„„ Next-Generations Datacom and
Telecom solution
„„ Data Center, Enterprise and Service
Provider applications
„„ High-End enterprise routers
and switches
„„ Edge and core and ISP routers
System Solution
Digital VR Controller and DrBlade™ 2 Power Stage
Efficiency Measurement
In the following example, Infineon’s system solution
including Controller and DrBlade™ 2 power stage
provides > 95% peak efficiency:
5-phase board; Vin = 12 V, Vout = 1.82 V
LL= 0 mΩ, Lout = 150 nH (Vitec)
fswitch = 429 kHz
Tamb = 25 °C
Efficiency [%]
DC/DC Solution for FPGA, ASSP and ASIC in Datacom/Telecom
No Air Flow
Included losses: Controller, power stage, inductor
97
96
95
94
93
92
91
90
89
88
87
86
System Efficiency
0
25
50
75
100
125
150
Output Load Current [A]
175
200
DrBlade™ 2 TDA21320
Infineon’s system solution with Digital Controller and
DrBlade™ 2 Power Stage
Infineon’s system solution achieves more than 95% peak
efficiency with highly accurate integrated current sense.
Highest efficiency at all load conditions enables system
designers to overcome thermal challenges to reach a new
level of system miniaturization.
DC/DC System Solution Product Portfolio
Product Type
Part No.
Max. Phase Configuration
Package Name
Digital VR Controller
PX7247HDN
6+1
VQFN-48 (6.0x6.0 mm2)
Digital VR Controller
PX7241HDN
3+3
VQFN-48 (6.0x6.0 mm2)
Digital VR Controller
PX7143HDM
3+0
VQFN-40 (5.0x5.0 mm2)
Digital VR Controller
PX7242HDM
1+1
VQFN-40 (5.0x5.0 mm2)
Digital VR Controller
PX7141HDM
1+0
VQFN-40 (5.0x5.0 mm2)
Baxter Digital Controller
IR3580M
8+0
QFN-48 (6.0x6.0 mm2)
Baxter Digital Controller
IR3581M
6+1
QFN-48 (6.0x6.0 mm2)
Baxter Digital Controller
IR3584M
4+1
QFN-48 (5.0x5.0 mm2)
Product Type
Part No.
Package Name
PowIRstage®
IR3555M, IR3556M, IR3557M, IR3578M*, IR3579M*
PQFN-32 (6.0x6.0 mm2)
DrBlade™ 2
TDA21320, TDA21321
LG-WIQFN-38 (6.6x4.5 mm2)
* exposed top
Published by
Infineon Technologies Austria AG
9500 Villach, Austria
© 2015 Infineon Technologies AG.
All Rights Reserved.
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THIS DOCUMENT IS FOR INFORMATION PURPOSES ONLY
AND ANY INFORMATION GIVEN HEREIN SHALL IN NO EVENT
BE REGARDED AS A WARRANTY, GUARANTEE OR DESCRIPTION
OF ANY FUNCTIONALITY, CONDITIONS AND/OR QUALITY OF
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WE RESERVE THE RIGHT TO CHANGE THIS DOCUMENT AND/
OR THE INFORMATION GIVEN HEREIN AT ANY TIME.
Order Number: B111-I0101-V1-7600-EU-EC-P
Date: 03 / 2015
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