Texas Instruments | 'C6472 12Vin Flexible Pwr Design Using DCDC Controllers and LDOs (8x C6472) | Application notes | Texas Instruments 'C6472 12Vin Flexible Pwr Design Using DCDC Controllers and LDOs (8x C6472) Application notes

Texas Instruments 'C6472 12Vin Flexible Pwr Design Using DCDC Controllers and LDOs (8x C6472) Application notes
Reference Design
SLVA392 – March 2010
TMS320C6472 12-Vin Flexible Power Design Using DC/DC
Controllers and LDOs (8x C6472)
This reference design is intended for designers who wish to design up to eight TMS320C6472 Digital
Signal Processors (DSP) into a system using a nominal input voltage of 12 V, external FETs for design
flexibility, and low-dropout (LDO) regulators for the low-power rails.
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Contents
Introduction .................................................................................................................. 1
Power Requirements ....................................................................................................... 2
Device Features ............................................................................................................. 3
Schematics ................................................................................................................... 4
Bill of Materials .............................................................................................................. 7
12-Vin, DC/DC Controllers and LDOs (8x C6472) .................................................................... 12
1
Schematic, 1 of 3
List of Figures
2
3
...........................................................................................................
Schematic, 2 of 3 ...........................................................................................................
Schematic, 3 of 3 ...........................................................................................................
4
5
6
List of Tables
1
1
TMS320C6472 Power Requirements .................................................................................... 2
2
Reference Design Parameters ............................................................................................ 2
3
PMP5176 Bill of Materials
.................................................................................................
7
Introduction
This reference design is for powering up to eight TMS320C6472 DSPs and accounts for voltage and
current requirements given in Table 2. The core voltage has been optimized for 1-V operation. This design
also includes enough margin on the 1.8-V rail to account for typical amounts of memory (2 × 667MHz
DDR SDRAM) per C6472, which comes to just over 600 mA.
The TMS320C6472 requires 3.3-V, 1.8-V, 1.2-V, and 1-V/1.1-V/1.2-V inputs. Power-up sequencing is
required and is shown in Table 1. In multivoltage architectures, coordinated management of power
supplies is necessary to avoid potential problems and ensure reliable performance. Power supply
designers must consider the timing and voltage differences between core and input/output (I/O) voltage
supplies during power-up and power-down operations.
Sequencing refers to the order, timing, and differential in which the two voltage rails are powered up and
down. A system designed without proper sequencing may be at risk for two types of failures. The first
failure represents a threat to the long-term reliability of the dual-voltage device, whereas the second failure
is more immediate, with the possibility of damaging interface circuits in the processor or system devices
such as memory, logic, or data converter integrated circuits (IC).
Another potential problem with improper supply sequencing is bus contention. Bus contention is a
condition when the processor and another device both attempt to control a bidirectional bus during power
up. Bus contention also may affect I/O reliability. Power supply designers must check the requirements
regarding bus contention for individual devices.
SLVA392 – March 2010
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TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
1
Power Requirements
2
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Power Requirements
The power requirements for each TMS320C6472 follow.
For more information and other reference designs, visit
www.ti.com/processorpower.
Table 1. TMS320C6472 (1) Power Requirements
Core, I/O
Core
Pin Name
CVDD, CVDD2 (2)
CVDD1
DVDD33
IO
Analog
(1)
(2)
(3)
(4)
Voltage
(V)
Imax
(mA)
Tolerance
1 / 1.1 /
1.2
9500
±5
1.2
260
±5
3.3
100
±5
DVDD18 (3), DVDD15
1.8 (4)
150
±5
AVDDA1, AVDDA2, AVDDA3, DVDDD
1.8 (4)
190
±5
1.2
170
±5
AVDDA, DVDDD, AVDDT, AVDDA4, DVDDR
Sequencing
Order
Timing
Delay
2
<200 ms
1
3
<200 ms
<200 ms
Consult the TMS320C6472 power spreadsheet for your exact power requirements.
CVDD and CVDD2 are 1 V at 500 MHz, 1.1 V @ 625 MHz (Imax = 4900 mA), and 1.2 V @ 700 MHz (Imax = 9500 mA).
DVDD18 voltage rail includes power required for external DDR2 memory.
All 1.8-V rails may be combined and all 1.1-V rails may be combined; however, follow the filtering recommendations for each
voltage rail in the TMS320C6472 Hardware Design Guide (SPRAAQ4).
Table 2. Reference Design Parameters
Power Supply Specifications
2
Vin
12 V ±10%
Vout1
1 V ± 5% at 40 A
Vout2
1.2 V ±5% at 2.4 mA
Vout3
3.3 V ±5% at 8 A
Vout4
1.8 V ±5% at 8 A
Vout5
1.2 V ±5% at 1.6 mA
DDR Termination
0.9 V at 3 A (x8)
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
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Device Features
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3
Device Features
TPS40131
• Two-Phase Interleaved Operation
• Operates With Pre-Biased Outputs
• 1-V to 40-V Power Stage Operation Range
• 10-µA Shutdown Current
• Programmable Switching Frequency up to 1 MHz/Phase
• Current Mode Control With Forced Current Sharing
• Better than 1% Internal 0.7-V Reference
• Programmable Input Undervoltage Lockout
• True Remote Sensing Differential Amplifier
TPS40192
• Input Operating Voltage Range: 4.5 V to 18 V
• Up to 20-A Output Currents
• Supports Pre-Biased Outputs
• 0.5% 0.591-V Reference
• Three Selectable Thermally Compensated Short-Circuit Protection Levels
• Hiccup Restart From Faults
• Internal 5-V Regulator
• High- and Low-Side FET RDSON Current Sensing
TPS74401
• Soft-Start (SS) Pin Provides a Linear Start-Up With Ramp Time Set by External Capacitor
• 1% Accuracy Over Line, Load, and Temperature
• Supports Input Voltages as Low as 0.9 V With External Bias Supply
• Adjustable Output (0.8 V to 3.6 V)
• Ultralow Dropout: 115 mV at 3 A (typ)
• Stable With Any or No Output Capacitor
• Available in 5-mm × 5-mm × 1-mm QFN and DDPAK-7 Packages
TPS51200
• 3-A DDR Termination LDO
• VLDOIN Voltage Range: 1.1 V to 3.5 V
• Sink/Source Termination Regulator Includes Droop Compensation
• Requires Minimum Output Capacitance of 20 µF (Typically 3 × 10-µF MLCCs) for Memory Termination
Applications (DDR)
• PGOOD to Monitor Output Regulation and Remote Sensing (VOSNS)
• ±10-mA Buffered Reference (REFOUT)
• Meets DDR, DDR2 JEDEC Specifications; Supports DDR3 and Low-Power DDR3/DDR4 VTT
Applications
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TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
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Copyright © 2010, Texas Instruments Incorporated
3
Schematics
Schematics
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4
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Figure 1. Schematic, 1 of 3
4
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
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Schematics
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Figure 2. Schematic, 2 of 3
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TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
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Schematics
+
+
+
+
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+
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Figure 3. Schematic, 3 of 3
6
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
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Bill of Materials
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5
Bill of Materials
Table 3. PMP5176 Bill of Materials
Count
RefDes
Value
Description
Size
Part Number
MFR
C1
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C2
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C3
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C4
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C5
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
2
C6
47 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
2
C7
470 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
2
C8
4.7 nF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
4
C9
3.3 nF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C10
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C11
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C12
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C13
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C14
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C15
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C16
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C17
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C18
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C19
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C20
47 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
1210
Std
Std
C21
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C22
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C23
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
C24
3.3 nF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
19
C25
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
2
C26
100 µF
Capacitor, Aluminum, 16V, 360mΩ, 240mA ripple
0.260 × 0.276 inch
EEEFK1C101P
Panasonic
2
C27
0.1 µF
Capacitor, Ceramic, 0.1 µF, 16V, X7R, 10%, 0603
0603
Std
Std
2
C28
0.022 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C29
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C30
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C31
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
C32
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C33
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C34
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
4
C35
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
4
C36
open
Capacitor, Multi-pattern
7343 (D)
C37
open
Capacitor, Multi-pattern
7343 (D)
C38
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
2
C39
1.0 µF
Capacitor, Ceramic, 25V, X5R, 10%
0603
Std
Std
6
C40
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C41
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C42
1 nF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C43
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C44
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C45
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C46
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C47
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C48
10 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C49
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C50
Open
Capacitor, Multi-pattern
7343 (D)
C51
Open
Capacitor, Multi-pattern
7343 (D)
C52
10 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
0805
Std
Std
C53
1.0 µF
Capacitor, Ceramic, 25V, X5R, 10%
0603
Std
Std
C54
10 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
12
12
2
7
1
1
2
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Copyright © 2010, Texas Instruments Incorporated
7
Bill of Materials
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Table 3. PMP5176 Bill of Materials (continued)
Count
RefDes
Value
Description
Size
Part Number
MFR
C55
10 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
1
C56
10 nF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
1
C57
470 nF
Capacitor, Ceramic, 10V, X5R, 20%
0603
Std
Std
2
C58
100 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
1210
Std
Std
C59
100 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
1210
Std
Std
C60
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
1
C61
100 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
1
C62
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0805
Std
Std
1
C63
4.7 µF
Capacitor, Ceramic, 10V, X5R, 20%
0805
Std
Std
1
C64
1000 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C65
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C66
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C67
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C68
0.1 µF
Capacitor, Ceramic, 25V, X7R, 10%
0603
Std
Std
C69
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
C70
47 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C71
470 pF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C72
4.7 nF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C73
3.3 nF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C74
0.1 µF
Capacitor, Ceramic, 25V, X7R, 10%
0603
Std
Std
C75
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C76
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C77
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C78
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C79
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C80
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C81
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C82
180 µF
Capacitor, SP-Cap, 6.3V, 5mΩ
7343
EEF-SE0J181R
Panasonic
C83
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C84
47 µF
Capacitor, Ceramic, 6.3V, X5R, 20%
1210
Std
Std
C85
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C86
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C87
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
C88
3.3 nF
Capacitor, Ceramic, 50V, C0G, 5%
0603
Std
Std
C89
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C90
100 µF
Capacitor, Aluminum, 16V, 360mΩ, 240mA ripple
0.260 × 0.276 inch
EEEFK1C101P
Panasonic
C91
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C92
0.022 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C93
0.1 µF
Capacitor, Ceramic, 0.1 µF, 16V, X7R, 10%, 0603
0603
Std
Std
C94
0.1 µF
Capacitor, Ceramic, 50V, X7R, 10%
0603
Std
Std
C95
1 µF
Capacitor, Ceramic, 25V, X5R, 20%
0603
Std
Std
C96
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C97
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
C98
22 µF
Capacitor, Ceramic, 25V, X5R, 20%
1210
Std
Std
D1
BAT54HT1
Diode, Schottky, 30V, 0.35Vf, SOD-323
SOD323
BAT54HT1
On Semi
D2
BAT54HT1
Diode, Schottky, 30V, 0.35Vf, SOD-323
SOD323
BAT54HT1
On Semi
D3
BAT54HT1
Diode, Schottky, 30V, 0.35Vf, SOD-323
SOD323
BAT54HT1
On Semi
D4
BAT54HT1
Diode, Schottky, 30V, 0.35Vf, SOD-323
SOD323
BAT54HT1
On Semi
Terminal Block, 4-pin, 15-A, 5.1mm
0.80 × 0.35
ED2227
OST
2
4
8
1
J1
2
J2
ED1516
Terminal Block, 4-pin, 6-A, 3.5mm
0.55 × 0.25 inch
ED1516
OST
2
J3
ED1514
Terminal Block, 2-pin, 6-A, 3.5mm
0.27 × 0.25 inch
ED1514
OST
4
J4
33457
Lug, Solderless, #10 – #10-12 AWG, Copper/Tin, Uninsulated
0.375 × 1.00 inch
33457
AMP
J5
33457
Lug, Solderless, #10 – #10-12 AWG, Copper/Tin, Uninsulated
0.375 × 1.00 inch
33457
AMP
3
J6
ED1609-ND
Terminal Block, 2-pin, 15-A, 5.1mm
0.40 × 0.35 inch
ED1609
OST
1
J7
ED555/2DS
Terminal Block, 2-pin, 6-A, 3.5mm
0.27 × 0.25 inch
ED555/2DS
OST
J8
ED1609-ND
Terminal Block, 2-pin, 15-A, 5.1mm
0.40 × 0.35 inch
ED1609
OST
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
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Bill of Materials
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Table 3. PMP5176 Bill of Materials (continued)
Count
RefDes
Value
Description
Size
Part Number
MFR
J9
ED1609-ND
Terminal Block, 2-pin, 15-A, 5.1mm
0.40 × 0.35 inch
ED1609
OST
J11
ED1516
Terminal Block, 4-pin, 6-A, 3.5mm
0.55 × 0.25 inch
ED1516
OST
J12
ED1514
Terminal Block, 2-pin, 6-A, 3.5mm
0.27 × 0.25 inch
ED1514
OST
J13
33457
Lug, Solderless, #10 - #10-12 AWG, Copper/Tin, Uninsulated
0.375 × 1.00 inch
33457
AMP
J14
33457
Lug, Solderless, #10 - #10-12 AWG, Copper/Tin, Uninsulated
0.375 × 1.00 inch
33457
AMP
Header, 3-pin, 100mil spacing, (36-pin strip)
0.100 inch × 3
PTC36SAAN
Sullins
1
JP1
4
L1
0.82 µH
Inductor, SMT, 0.82uH, 1.9mΩ, 50A sat, 33A rms
0.512 × 0.571 inch
IHLP-5050FD-01, 0.82 µH
Vishay
L2
0.82 µH
Inductor, SMT, 0.82uH, 1.9mΩ, 50A sat, 33A rms
0.512 × 0.571 inch
IHLP-5050FD-01, 0.82 µH
Vishay
L3
1.0 µH
Inductor, SMT, 7.2mΩ, 17A sat, 12A rms
0.268 × 0.268 inch
PG0083.102
Pulse
L4
0.82 µH
Inductor, SMT, 0.82uH, 1.9mΩ, 50A sat, 33A rms
0.512 × 0.571 inch
IHLP-5050FD-01, 0.82 µH
Vishay
L5
0.82 µH
Inductor, SMT, 0.82uH, 1.9mΩ, 50A sat, 33A rms
0.512 × 0.571 inch
IHLP-5050FD-01, 0.82 µH
Vishay
4
Q1
HAT2167H
MOSFET, N-Ch, 30V, 9.3mΩ, 17nC
LFPAK
HAT2167H
Hitachi
8
Q2
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q3
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q4
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q5
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q6
HAT2167H
MOSFET, N-Ch, 30V, 9.3mΩ, 17nC
LFPAK
HAT2167H
Hitachi
1
Q7
IRF7466
MOSFET, N-Chan, 30V, 17mΩ, 23nC
SO8
IRF7466
IR
1
Q8
IRF7834
MOSFET, N-Chan, 30V, 5.5mΩ, 44nC
SO8
IRF7834
IR
Q9
HAT2167H
MOSFET, N-Ch, 30V, 9.3mΩ, 17nC
LFPAK
HAT2167H
Hitachi
Q10
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q11
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q12
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q13
HAT2164H
MOSFET, N-Ch, 30V, 4.4mΩ, 50nC
LFPAK
HAT2164H
Hitachi
Q14
HAT2167H
MOSFET, N-Ch, 30V, 9.3mΩ, 17nC
LFPAK
HAT2167H
Hitachi
4
R1
6.04K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
5
R2
open
Resistor, Chip, 1/16W, 1%
0603
Std
Std
2
R3
3K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R4
4.99K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
4
R5
1
Resistor, Chip, 1/10W, 1%
0805
Std
Std
12
R6
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
1
R7
2.67K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
2
R8
20
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R9
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
2
R10
1.5K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
4
R11
2
Resistor, Chip, 1/16W, 1%
0603
Std
Std
2
R12
4.02K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R13
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R14
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R15
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R16
5.1
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R17
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R18
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R19
1
Resistor, Chip, 1/10W, 1%
0805
Std
Std
R20
75k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R21
2
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R22
6.04K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R23
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R24
open
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R25
2.49K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
3
R26
49.9
Resistor, Chip, 1/16W, 1%
0603
Std
Std
4
R27
2.49k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
4
R28
4.99k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R29
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R30
100K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R31
1.00M
Resistor, Chip, 1/16W, 1%
0603
Std
Std
1
7
1
2
2
SLVA392 – March 2010
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TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
9
Bill of Materials
www.ti.com
Table 3. PMP5176 Bill of Materials (continued)
Count
RefDes
Value
Description
Size
Part Number
MFR
R32
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R33
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R34
49.9
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R35
2.49k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R36
4.99k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R37
1.00M
Resistor, Chip, 1/16W, 1%
0603
Std
Std
2
R38
0
Resistor, Chip, 1/16W, 1%
0603
Std
Std
4
R39
100k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
1
R40
3.01k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R41
0
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R42
3.9k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R43
100k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R44
20k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R45
49.9
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R46
open
Resistor, Chip, 1/16W, 1%
0603
Std
Std
1
R47
9.76k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
1
R48
1.33k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R49
6.04K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R50
open
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R51
3K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R52
4.99K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R53
1
Resistor, Chip, 1/10W, 1%
0805
Std
Std
R54
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R55
23.2K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R56
20
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R57
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R58
1.5K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R59
2
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R60
4.02K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R61
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R62
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R63
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R64
100K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R65
10
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R66
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R67
1
Resistor, Chip, 1/10W, 1%
0805
Std
Std
R68
75k
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R69
2
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R70
6.04K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R71
10K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R72
open
Resistor, Chip, 1/16W, 1%
0603
Std
Std
R73
2.49K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
2
R74
20K
Resistor, Chip, 1/16W, 1%
0603
Std
Std
3
SH1
Short jumper
SH2
Short jumper
1
1
SH3
10
Short jumper
17
TP1
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
7
TP2
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
TP3
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP4
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP5
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP6
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP7
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP8
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
TP9
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP10
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
SLVA392 – March 2010
Submit Documentation Feedback
Bill of Materials
www.ti.com
Table 3. PMP5176 Bill of Materials (continued)
Count
RefDes
Value
Description
Size
Part Number
MFR
TP11
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP12
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
TP13
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
TP14
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP15
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
4
TP16
5011
Test Point, Black, Thru Hole
0.125 × 0.125 inch
5011
Keystone
2
TP17
Test Point, Red, 1mm
0.038
240-345
Farnell
10
TP18
5011
Test Point, Black, Thru Hole
0.125 × 0.125 inch
5011
Keystone
TP19
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP20
5012
Test Point, White, Thru Hole
0.125 × 0.125 inch
5012
Keystone
TP21
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP22
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP23
5011
Test Point, Black, Thru Hole
0.125 × 0.125 inch
5011
Keystone
Test Point, Red, 1mm
0.038
240-345
Farnell
TP24
TP25
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP26
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP27
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP28
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP29
5011
Test Point, Black, Thru Hole
0.125 × 0.125 inch
5011
Keystone
TP30
5012
Test Point, White, Thru Hole
0.125 × 0.125 inch
5012
Keystone
TP31
5010
Test Point, Red, Thru Hole
0.125 × 0.125 inch
5010
Keystone
TP34
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP35
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP36
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP37
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP38
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP39
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
TP40
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP41
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP42
5000
Test Point, Red, Thru Hole Color Keyed
0.100 × 0.100 inch
5000
Keystone
TP43
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
TP44
5001
Test Point, Black, Thru Hole Color Keyed
0.100 × 0.100 inch
5001
Keystone
2
U1
TPS40131RHB
Two-Phase Synchronous Buck Controller w/Integrated MOSFET
Drivers
QFN-32
TPS40131RHB
TI
2
U2
TPS74401RGW
IC, 1.5A LDO With Programmable Sequencing
QFN-20
TPS74401RGW
TI
1
U3
TPS51200DRC
IC, Sink/Source DDR Termination Regulator
DRC
TPS51200DRC
TI
U4
TPS74401RGW
IC, 1.5A LDO With Programmable Sequencing
QFN-20
TPS74401RGW
TI
U5
TPS40192DRC
IC, Cost Optimized Mid Vin High Freq. Sync. Buck controller
DRC10
TPS40192DRC
TI
U6
TPS40131RHB
Two-Phase Synchronous Buck Controller w/Integrated MOSFET
Drivers
QFN-32
TPS40131RHB
TI
2
1
Notes: 1.
These assemblies are ESD sensitive, ESD precautions shall be observed.
2. These assemblies must be clean and free from flux and all contaminants.
Use of unclean flux is unacceptable.
3. These assemblies must comply with workmanship standards IPC-A-610 Class 2.
4. Ref designators marked with an asterisk ('**') cannot be substituted.
All other components can be substituted with equivalent MFG's components.
SLVA392 – March 2010
Submit Documentation Feedback
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
11
12-Vin, DC/DC Controllers and LDOs (8x C6472)
6
www.ti.com
12-Vin, DC/DC Controllers and LDOs (8x C6472)
CH1 – Vout 3, CH2 – Vout 5, CH3 – Vout 2, CH4 – Vout 1
(2 V/div, 1 V/div, 1 V/div, 1V/div 4 ms/div)
1V
1.2 V
3.3 V
1.2 V
CH1 – Vout 3, CH2 – Vout 4, CH3 – DDR termination, CH4 – Vout 5
(2 V/div, 1 V/div, 1 V/div, 1 V/div 4 ms/div)
3.3 V
1.8 V
0.9 V
1.2 V
12
TMS320C6472 12-Vin Flexible Power Design Using DC/DC Controllers and
LDOs (8x C6472)
Copyright © 2010, Texas Instruments Incorporated
SLVA392 – March 2010
Submit Documentation Feedback
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