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Table of Contents
User’s Guide
TPS53313 Step-Down Converter Evaluation Module User's
Guide
Table of Contents
1 Introduction.............................................................................................................................................................................3
2 Description.............................................................................................................................................................................. 3
2.1 Typical Applications............................................................................................................................................................3
2.2 Features............................................................................................................................................................................. 3
3 Electrical Performance Specifications................................................................................................................................. 3
4 Schematic................................................................................................................................................................................4
5 Test Setup................................................................................................................................................................................5
5.1 Test Equipment.................................................................................................................................................................. 5
5.2 Recommended Test Setup.................................................................................................................................................6
6 Configurations........................................................................................................................................................................ 7
6.1 Mode and Soft-Start Time Selection.................................................................................................................................. 7
6.2 Overcurrent Protection (OCP) Selection............................................................................................................................ 7
6.3 Enable Selection................................................................................................................................................................ 7
6.4 Switching Frequency Selection or External Clock Input for Synchronization.....................................................................7
7 Test Procedure........................................................................................................................................................................ 8
7.1 Line/Load Regulation and Efficiency Measurement Procedure......................................................................................... 8
7.2 Control Loop Gain and Phase Measurement Procedure................................................................................................... 8
7.3 List of Test Points............................................................................................................................................................... 8
7.4 Equipment Shutdown......................................................................................................................................................... 8
8 Performance Data and Typical Characteristic Curves........................................................................................................ 9
8.1 Efficiency............................................................................................................................................................................9
8.2 Load Regulation................................................................................................................................................................. 9
8.3 Line Regulation................................................................................................................................................................ 10
8.4 Output Transient...............................................................................................................................................................11
8.5 Output Ripple................................................................................................................................................................... 12
8.6 Switching Node................................................................................................................................................................ 13
8.7 Start Up............................................................................................................................................................................ 14
8.8 Shut Down........................................................................................................................................................................15
8.9 Over-Current Protection................................................................................................................................................... 15
8.10 Synchronization..............................................................................................................................................................16
8.11 Bode Plot........................................................................................................................................................................16
8.12 Thermal Image............................................................................................................................................................... 17
9 EVM Assembly Drawing and PCB Layout.......................................................................................................................... 18
10 List of Materials.................................................................................................................................................................. 21
11 Revision History..................................................................................................................................................................22
List of Figures
Figure 4-1. TPS53313EVM-078 Schematic.................................................................................................................................4
Figure 5-1. Tip and Barrel Measurement for VOUT Ripple..........................................................................................................5
Figure 5-2. TPS53313EVM-078 Recommended Test Set Up..................................................................................................... 6
Figure 8-1. Efficiency................................................................................................................................................................... 9
Figure 8-2. Load Regulation........................................................................................................................................................ 9
Figure 8-3. Line Regulation....................................................................................................................................................... 10
Figure 8-4. Output Load 0-A to 3-A Transient Under FCCM Mode (12-V VIN, 1.2-V VOUT, fSW = 600 kHz)............................11
Figure 8-5. Output Load 0-A to 3-A Transient Under Skip Mode (12-V VIN, 1.2-V VOUT, fSW = 600 kHz)............................... 11
Figure 8-6. Output Ripple at No Load (12-V VIN, 1.2-V VOUT, 0-A, Skip Mode, fSW = 600 kHz)............................................. 12
Figure 8-7. Output Ripple at Full Load (12-V VIN, 1.2-V VOUT, 6-A, Skip Mode, fSW = 600 kHz)............................................ 12
Figure 8-8. Switching Node at No Load (12-V VIN, 1.0-V VOUT, 0-A, Skip Mode, fSW = 600 kHz).......................................... 13
Figure 8-9. Switching Node at Full Load (12-V VIN, 1.2-V VOUT, 6-A, Skip Mode, fSW = 600 kHz)......................................... 13
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Figure 8-10. Start-Up Waveform (12-V VIN, 1.2-V VOUT, 6-A IOUT, 1-ms SS)........................................................................ 14
Figure 8-11. Pre-bias Start-Up Waveform (12-V VIN, 1.2-V VOUT, 0-A IOUT, 1-ms SS)..........................................................14
Figure 8-12. Shut-Down Waveform (12-V VIN, 1.2-V VOUT, 0-A IOUT)................................................................................... 15
Figure 8-13. Over-Current Protection Waveform ( 12-V VIN, 1.2-V VOUT, IOUT increases from 6 A to 7.8 A)........................15
Figure 8-14. Synchronization Waveform (12-V VIN, 1.2-V VOUT, 0-A IOUT, free-running frequency = 600 kHz, SYNC
frequency = 750 kHz)............................................................................................................................................................. 16
Figure 8-15. Loop Gain (12-V VIN, 1.2-V VOUT, 6-A IOUT, Skip Mode, fSW = 600 kHz).......................................................... 16
Figure 8-16. Thermal Image (12-V VIN, 1.2-V VOUT, 6-A IOUT, FCCM Mode, fSW = 600 kHz)............................................... 17
Figure 8-17. Thermal Image (12-V VIN, 1.2-V VOUT, 6-A IOUT, FCCM Mode, fSW = 1.00 MHz)............................................. 17
Figure 9-1. TPS53313EVM-078 Top Layer Assembly Drawing (top view)................................................................................ 18
Figure 9-2. TPS53313EVM-078 Bottom Assembly Drawing (bottom view)...............................................................................18
Figure 9-3. TPS53313EVM-078 Top Copper (top view)............................................................................................................ 19
Figure 9-4. TPS53313EVM-078 Layer 2 (top view)...................................................................................................................19
Figure 9-5. TPS53313EVM-078 Layer 3 (top view)...................................................................................................................20
Figure 9-6. TPS53313EVM-078 Bottom Layer (top view)......................................................................................................... 20
List of Tables
Table 3-1. TPS53313EVM-078 Electrical Performance Specifications(1) ................................................................................... 3
Table 6-1. MODE Selection......................................................................................................................................................... 7
Table 6-2. OCP Selection............................................................................................................................................................ 7
Table 6-3. Switching Frequency Selection...................................................................................................................................7
Table 7-1. Test Point Functions....................................................................................................................................................8
Table 10-1. TPS53313EVM-078 List of Materials......................................................................................................................21
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Introduction
1 Introduction
The TPS53313EVM-078 evaluation module (EVM) is a step-down regulator featuring the TPS53313. The
TPS53313 is a fully integrated step-down regulator employing voltage mode control.
2 Description
The TPS53313EVM-078 is designed to use a 12-V voltage rail to produce a regulated 1.2-V output with up to
6-A load current. The TPS53313EVM-078 is designed to demonstrate the TPS53313 in a typical Point-Of-Load
(POL) application while providing a number of test points to evaluate the performance of the TPS53313.
2.1 Typical Applications
•
POL applications for 5-V or 12-V step-down rails
2.2 Features
The TPS53313EVM-078 features include:
•
•
•
•
•
•
•
•
•
•
•
•
Continuous 6-A output current capability
Support all MLCC output capacitors
Voltage mode control
Selectable light-load operation modes (forced continuous conduction mode (FCCM) and skip mode)
Selectable switching frequency settings (600 kHz and 1.00 MHz)
Support synchronization to external clock
Selectable overcurrent threshold
Soft-stop output discharge during disable
Overcurrent, overvoltage, undervoltage, and overtemperature protections
Power-good indication
Pre-bias output voltage start-up
Convenient test points for probing critical waveforms
3 Electrical Performance Specifications
Table 3-1. TPS53313EVM-078 Electrical Performance Specifications(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input Characteristic
Voltage range
VIN
8.0
12
Maximum input current
VIN = 12 V
0.8
No load input current
VIN = 12 V, IOUT = 0 A, fSW = 600 kHz under skip
mode
8.0
14
V
A
mA
Output Characteristics
Output voltage
Output voltage regulation
Output voltage ripple
1.2
Setpoint accuracy,
(VIN = 8.0 V – 14 V, IOUT = 0 A – 6 A)
0.1%
Load regulation,
(VIN = 12 V, IOUT = 0 A – 6 A)
0.2%
VIN = 12 V, IOUT = 6 A
10
0
VIN = 12 V
V
1%
Line regulation,
(VIN = 8.0 V – 14 V, IOUT = 6 A)
Output load current
Over current limit (peak)
-1%
mVPP
6.0
9
A
Systems Characteristics
Switching frequency
600/1000
Peak efficiency
VIN = 12 V, IOUT = 3.0 A, fSW = 600 kHz
85.5%
Full load efficiency
VIN = 12 V, IOUT = 6.0 A, fSW = 600 kHz
82.4%
Operating temperature
(1)
25
kHz
°C
Jumpers set to default locations, See section 6 of this user’s guide
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GND
8V - 14V
VIN
J2
Notes:
VOUT
1.2V/6A
GND
TP6
GND
2
1
VIN
TP3
J5
C1
1
1
22uF
C10
C2
22uF
C11
GND
22uF
Not Populated
TP10
VOUT
2
GND
TP8
1.0uF
C3
22uF
C12
22uF
C4
22uF
C13
22uF
22uF
C14
GND
SW
TP9
PGND
PGND
PGND
PGND
PGND
PGND
PWPD
GND
TP14
L1
1.0uH
12
11
10
9
8
7
25
6
VIN
5
R1
22.0k
U1
1.0nF
C18
1.00
R17
C15 0.1uF
0
COMP
FB
0
19
20
21
22
23
24
R18
BP3
AGND
RT/SYNC
MODE/SS
R14
PG
TP4
TPS53313RGE
SW
14
SW
15
SW
13
VIN
4
VIN
3
VIN
SW
16
1
EN
BP7
2
PG
VBST
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17
C6
R7
R2
GND
TP2
R4
R5
560pF
C5
10.0k
300
CONTROL LOOP
INJECTION & MEASURING
1.0uF
C9
10.0k
R8
51.0k
TP12
CHA
10.0
10nF
C7
5.60k
GND
TP13
R16
1.0uF
C8
220pF
TP11
CHB
J1
1
OPEN= ENABLE
2
4
18
EN
TP1
600kHz>
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
6A OC>
4.5A OC>
9A OC>
J6
1
2
3
4
5
6
OCP SELECTION
SKIP 1ms SS>
SKIP 3ms SS>
SKIP 6ms SS>
FCCM 1mS SS>
FCCM 3ms SS>
FCCM 6ms SS>
J4
MODE/SS SELECTION
J3
FREQUENCY SELECTION
1.00MHz>
SYNC
(External Clock)TP5
R9
C19
C17
1
2.2nF
10nF
1
160k
82.0k
39.0k
20.0k
10.0k
45.3k
80.6k
C16
R15
R13
R12
R11
R10
R6
R3
GND
TP7
Schematic
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4 Schematic
Figure 4-1. TPS53313EVM-078 Schematic
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Test Setup
5 Test Setup
5.1 Test Equipment
Voltage Source (VIN): The input voltage source, (VIN), should be a 0-V to 15-V variable DC source capable of
supplying 2 ADC. Connect VIN to J2 as shown in Figure 5-2.
Multimeters:
• V1: VIN at TP3 (VIN) and TP6 (GND), 0-V to 15-V voltmeter
• V2: VOUT at TP10 (VOUT) and TP8 (GND)
• A1: VIN input current, 0-ADC to 2-ADC Ammeter
Output Load: The output load should be an electronic constant resistance mode load capable of 0 ADC to 6 ADC
at 1.2 V.
Oscilloscope: A digital or analog oscilloscope can be used to measure the output ripple. The oscilloscope
should be set for 1-MΩ impedance, 20-MHz bandwidth, AC coupling, 1-µs/div. horizontal resolution, 20-mV/div.
vertical resolution. Test points TP10 and TP8 can be used to measure the output ripple voltage by placing the
oscilloscope probe tip through TP10 and holding the ground barrel on TP8 as shown in Figure 5-1. Using a
leaded ground connection may induce additional noise due to the large ground loop.
TP10
TP8
Figure 5-1. Tip and Barrel Measurement for VOUT Ripple
Fan: Some of the components in this EVM may approach temperatures of 80°C during operation. A small
fan capable of 200 LFM to 400 LFM is recommended to reduce component temperatures while the EVM is
operating. The EVM should not be probed while the fan is not running.
Recommended Wire Gauge:
• VIN to J2: The recommended wire size is 1x AWG #16 per input connection, with the total length of wire less
than 4 feet (2 feet input, 2 feet return).
• J5 to LOAD: The minimum recommended wire size is 1x AWG #16, with the total length of wire less than 4
feet (2 feet output, 2 feet return).
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Test Setup
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5.2 Recommended Test Setup
Figure 5-2 is the recommended test set up to evaluate the TPS53313EVM-078. Working at an ESD workstation,
make sure that any wrist straps, bootstraps or mats are connected referencing the user to earth ground before
power is applied to the EVM.
Figure 5-2. TPS53313EVM-078 Recommended Test Set Up
5.2.1 Input Connections
•
•
•
Prior to connecting the DC input source (VIN), it is advisable to limit the source current from VIN to 2 A
maximum. Make sure VIN is initially set to 0 V and connected to J2 as shown in Figure 5-2.
Connect a current meter A1 between VIN and J2 to measure the input current.
Connect a voltmeter V1 at TP3 (VIN) and TP6 (GND) to measure the input voltage.
5.2.2 Output Connections
•
•
Connect Load to J5 and set load to constant resistance mode to sink 0 ADC before VIN is applied.
Connect a voltmeter V2 at TP10 (VOUT) and TP8 (GND) to measure the output voltage.
5.2.3 Other Connections
•
6
Place a fan as shown in Figure 5-2 and turn on, making sure air is flowing across the EVM.
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Configurations
6 Configurations
All Jumper selections should be made prior to applying power to the EVM. User can configure this EVM per
following configurations.
6.1 Mode and Soft-Start Time Selection
The operation mode and soft-start time can be set by J4.
6.1.1 Default Setting: Skip Mode, 6-ms SS
Table 6-1. MODE Selection
MODE RESISTANCES
OPERATION MODE
SOFT-START TIME
10.0 kΩ
FCCM
6 ms
20.0 kΩ
FCCM
3 ms
39.0 kΩ
FCCM
1 ms
82.0 kΩ
Skip
6 ms
160 kΩ
Skip
3 ms
Open
Skip
1 ms
6.2 Overcurrent Protection (OCP) Selection
The OCP threshold can be set by J6.
6.2.1 Default Setting: 9-A OCP
Table 6-2. OCP Selection
OCP SETTING CAPACITANCE
OVERCURRENT LIMIT
10 nF
9A
2.2 nF
4.5 A
Open
6A
6.3 Enable Selection
The converter can be enabled and disabled by J1.
6.3.1 Default Setting: Short to Disable the Converter
6.4 Switching Frequency Selection or External Clock Input for Synchronization
The switching frequency can be set by J3. If the external clock is used for synchronization, the external clock
should be connected to TP5 (SYNC) and TP7 (GND).
6.4.1 Default setting: 600 kHz
Table 6-3. Switching Frequency Selection
SWITCHING FREQUENCY SETTING RESISTANCES
SWITCHING FREQUENCY
80.6 kΩ
600 kHz
45.3 kΩ
1.00 MHz
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Test Procedure
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7 Test Procedure
7.1 Line/Load Regulation and Efficiency Measurement Procedure
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Set up EVM as described in Section 5 and Figure 5-2.
Ensure Load is set to constant resistance mode and to sink 0 ADC.
Ensure all jumpers set per Section 6.
Increase VIN from 0 V to 12 V. Using V1 to measure VIN voltage.
Open jumper J1 to enable the controller.
Use V2 to measure VOUT voltage, A1 to measure VIN current.
Vary load from 0 ADC to 6 ADC, VOUT should remain in load regulation.
Vary VIN from 8.0 V to 14 V, VOUT should remain in line regulation.
Short jumper J1 to disable the controller.
Decrease load to 0 A.
Decrease VIN to 0 V.
7.2 Control Loop Gain and Phase Measurement Procedure
TPS53313EVM-078 contains a 10-Ω series resistor in the feedback loop for loop response analysis.
1. Set up EVM as described in Section 5 and Figure 5-2.
2. Connect isolation transformer to test points marked TP12 and TP11.
3. Connect input signal amplitude measurement probe (channel A) to TP12. Connect output signal amplitude
measurement probe (channel B) to TP11.
4. Connect ground lead of channel A and channel B to TP13.
5. Inject around 10-mV or less signal through the isolation transformer.
6. Sweep the frequency from 500 Hz to 500 kHz with 10-Hz or lower post filter. The control loop gain and
phase margin can be measured.
7. Disconnect isolation transformer from bode plot test points before making other measurements (Signal
injection into feedback may interfere with accuracy of other measurements).
7.3 List of Test Points
Table 7-1. Test Point Functions
TEST POINTS
NAME
DESCRIPTION
TP1
EN
TP2
GND
Enable pin
GND
TP3
VIN
Input voltage
TP4
PG
Power good output
TP5
SYNC
Input of external clock for synchronization
TP6
GND
GND
TP7
GND
GND
TP8
GND
GND
TP9
SW
Switching node
TP10
VOUT
Output voltage
TP11
CHB
Input B for loop injection
TP12
CHA
Input A for loop injection
TP13
GND
GND
TP14
GND
GND
7.4 Equipment Shutdown
1. Shut down VIN
2. Shut down Load
3. Shut down FAN
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Performance Data and Typical Characteristic Curves
8 Performance Data and Typical Characteristic Curves
Figure 8-1 through Figure 8-17 present typical performance curves for TPS53313EVM-078.
8.1 Efficiency
90
85
H - Efficiency - %
80
75
70
65
60
VIN = 12 V, fsw = 600 kHz, Skip Mode
55
VIN = 12 V, fsw = 1.00 MHz, Skip Mode
50
VIN = 12 V, fsw = 600 kHz, FCCM Mode
VIN = 12 V, fsw = 1.00 MHz, FCCM Mode
45
40
0
1
2
3
4
5
6
ILOAD - Load Current - A
Figure 8-1. Efficiency
8.2 Load Regulation
1.22
VIN = 12 V, fsw =600 kHz, Skip Mode
VOUT - Output Voltage - V
1.215
VIN = 12 V, fsw = 1.00 MHz, Skip Mode
1.21
VIN = 12 V, fsw = 600 kHz, FCCM Mode
1.205
VIN = 12 V, fsw = 1.00 MHz, FCCM Mode
1.2
1.195
1.19
1.185
1.18
0
1
2
3
4
5
6
ILOAD - Load Current - A
Figure 8-2. Load Regulation
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Performance Data and Typical Characteristic Curves
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8.3 Line Regulation
1.22
Skip Mode, fsw = 600 kHz, IOUT = 6 A
VOUT - Output Voltage - V
1.215
Skip Mode, fsw = 1.00 MHz, IOUT = 6 A
1.21
FCCM Mode, fsw = 600 kHz, IOUT = 6 A
FCCM Mode, fsw = 1.00 MHz, IOUT = 6 A
1.205
1.2
1.195
1.19
1.185
1.18
8
9
10
11
12
13
14
VIN - Input Voltage - V
Figure 8-3. Line Regulation
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Performance Data and Typical Characteristic Curves
8.4 Output Transient
Figure 8-4. Output Load 0-A to 3-A Transient Under FCCM Mode (12-V VIN, 1.2-V VOUT, fSW = 600 kHz)
Figure 8-5. Output Load 0-A to 3-A Transient Under Skip Mode (12-V VIN, 1.2-V VOUT, fSW = 600 kHz)
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Performance Data and Typical Characteristic Curves
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8.5 Output Ripple
Figure 8-6. Output Ripple at No Load (12-V VIN, 1.2-V VOUT, 0-A, Skip Mode, fSW = 600 kHz)
Figure 8-7. Output Ripple at Full Load (12-V VIN, 1.2-V VOUT, 6-A, Skip Mode, fSW = 600 kHz)
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Performance Data and Typical Characteristic Curves
8.6 Switching Node
Figure 8-8. Switching Node at No Load (12-V VIN, 1.0-V VOUT, 0-A, Skip Mode, fSW = 600 kHz)
Figure 8-9. Switching Node at Full Load (12-V VIN, 1.2-V VOUT, 6-A, Skip Mode, fSW = 600 kHz)
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Performance Data and Typical Characteristic Curves
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8.7 Start Up
Figure 8-10. Start-Up Waveform (12-V VIN, 1.2-V VOUT, 6-A IOUT, 1-ms SS)
Figure 8-11. Pre-bias Start-Up Waveform (12-V VIN, 1.2-V VOUT, 0-A IOUT, 1-ms SS)
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Performance Data and Typical Characteristic Curves
8.8 Shut Down
Figure 8-12. Shut-Down Waveform (12-V VIN, 1.2-V VOUT, 0-A IOUT)
8.9 Over-Current Protection
Figure 8-13. Over-Current Protection Waveform ( 12-V VIN, 1.2-V VOUT, IOUT increases from 6 A to 7.8 A)
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Performance Data and Typical Characteristic Curves
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8.10 Synchronization
Figure 8-14. Synchronization Waveform (12-V VIN, 1.2-V VOUT, 0-A IOUT, free-running frequency = 600
kHz, SYNC frequency = 750 kHz)
8.11 Bode Plot
Figure 8-15. Loop Gain (12-V VIN, 1.2-V VOUT, 6-A IOUT, Skip Mode, fSW = 600 kHz)
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Performance Data and Typical Characteristic Curves
8.12 Thermal Image
Figure 8-16. Thermal Image (12-V VIN, 1.2-V VOUT, 6-A IOUT, FCCM Mode, fSW = 600 kHz)
Figure 8-17. Thermal Image (12-V VIN, 1.2-V VOUT, 6-A IOUT, FCCM Mode, fSW = 1.00 MHz)
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EVM Assembly Drawing and PCB Layout
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9 EVM Assembly Drawing and PCB Layout
The following figures (Figure 9-1 through Figure 9-6) show the design of the TPS53313EVM-078 printed circuit
board. The EVM has been designed using 4 Layers, 2-oz copper circuit board.
Figure 9-1. TPS53313EVM-078 Top Layer Assembly Drawing (top view)
Figure 9-2. TPS53313EVM-078 Bottom Assembly Drawing (bottom view)
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EVM Assembly Drawing and PCB Layout
Figure 9-3. TPS53313EVM-078 Top Copper (top view)
Figure 9-4. TPS53313EVM-078 Layer 2 (top view)
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EVM Assembly Drawing and PCB Layout
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Figure 9-5. TPS53313EVM-078 Layer 3 (top view)
Figure 9-6. TPS53313EVM-078 Bottom Layer (top view)
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List of Materials
10 List of Materials
The EVM components list according to the schematic shown in Figure 4-1
Table 10-1. TPS53313EVM-078 List of Materials
QTY
REF DES
DESCRIPTION
PART NUMBER
MFR
3
C1, C8, C9
Capacitor, ceramic, 16 V, X7R, 10%, 1.0 µF, 0603
Std
Std
8
C2, C3, C4, C10, C11,
C12, C13, C14
Capacitor, ceramic, 25 V, X5R, 10%, 22 µF, 1206
Std
Std
1
C5
Capacitor, ceramic, 16 V, X7R, 10%, 560 pF, 0603
Std
Std
1
C6
Capacitor, ceramic, 16 V, X7R, 10%, 220 pF, 0603
Std
Std
2
C7, C16
Capacitor, ceramic, 16 V, X7R, 10%, 10 nF, 0603
Std
Std
1
C15
Capacitor, ceramic, 50 V, X7R, 10%, 0.1 µF, 0603
Std
Std
1
C17
Capacitor, ceramic, 16 V, X7R, 10%, 2.2 nF, 0603
Std
Std
1
C18
Capacitor, ceramic, low inductance, 50 V, X7R, 10%, 1.0 nF,
0603
Std
Std
0
C19
Capacitor, ceramic, 16 V, X7R, 10%, 0603
Std
Std
1
J1
Header, male 2 pin, 100-mil spacing, 0.100 inch x 2 inch
PEC02SAAN
Sullins
2
J2, J5
Terminal block, 2-pin, 6-A, 3.5mm, 0.27 inch x 0.25 inch
ED555/2DS
OST
1
J3
Header, 2 x 2 pin, 100-mil spacing, 0.20 inch x 0.20 inch
PEC02DAAN
Sullins
1
J4
Header, male 2 x 6 pin, 100-mil spacing, 0.100 inch x 2 inch x
6 inch
PEC06DAAN
Sullins
1
J6
Header, male 2 x 3 pin, 100-mil spacing, 0.20 inch x 0.30 inch
PEC03DAAN
Sullins
1
L1
Inductor, 1.0 µH, 5.6 mΩ, ±20%, 6.6 mm x 7 mm
PCMC065T-1R0
MN
Cyntec Co.
1
R1
Resistor, chip, 1/16 W, 1%, 22.0 kΩ, 0603
Std
Std
1
R2
Resistor, chip, 1/16 W, 1%, 51.0 kΩ, 0603
Std
Std
1
R3
Resistor, chip, 1/16 W, 1%, 80.6 kΩ, 0603
Std
Std
1
R4
Resistor, chip, 1/16 W, 1%, 300 Ω, 0603
Std
Std
3
R5, R8, R9
Resistor, chip, 1/16 W, 1%, 10.0 kΩ, 0603
Std
Std
1
R6
Resistor, chip, 1/16 W, 1%, 45.3 kΩ, 0603
Std
Std
1
R7
Resistor, chip, 1/16 W, 1%, 5.60 kΩ, 0603
Std
Std
1
R10
Resistor, chip, 1/16 W, 1%, 20.0 kΩ, 0603
Std
Std
SLUU819A – DECEMBER 2011 – REVISED DECEMBER 2021
TPS53313 Step-Down Converter Evaluation Module User's Guide
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21
Revision History
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Table 10-1. TPS53313EVM-078 List of Materials (continued)
QTY
REF DES
DESCRIPTION
PART NUMBER
MFR
1
R11
Resistor, chip, 1/16 W, 1%, 39.0 kΩ, 0603
Std
Std
1
R12
Resistor, chip, 1/16 W, 1%, 82.0 kΩ, 0603
Std
Std
1
R13
Resistor, chip, 1/16 W, 1%, 160 kΩ, 0603
Std
Std
2
R14, R18
Resistor, chip, 1/16 W, 1%, 0 Ω, 0603
Std
Std
0
R15
Resistor, chip, 1/16 W, 1%, 0603
Std
Std
1
R16
Resistor, chip, 1/16 W, 1%, 10.0 Ω, 0603
Std
Std
1
R17
Resistor, chip, 1/8 W, 1%, 1.00 Ω, 0603
Std
Std
4
TP1, TP4, TP11, TP12
Test point, white, thru hole, 0.125 inch x 0.125 inch
5012
Keystone
6
TP2, TP6, TP7, TP8,
TP13, TP14
Test point, black, thru hole, 0.125 inch x 0.125 inch
5011
Keystone
4
TP3, TP5, TP9, TP10
Test point, red, thru hole, 0.125 inch x 0.125 inch
5010
Keystone
1
U1
6A Step-down Regulator with Integrated Switcher, QFN-24
TPS53313RGE
TI
4
--
Shunt, 100 mil, black, 0.100 inch
929950-00
3M
1
--
PCB, 2.3 inch x 1.35 inch x 0.062 inch
PWR078
Any
11 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (December 2011) to Revision A (December 2021)
Page
• Updated the numbering format for tables, figures, and cross-references throughout the document. ................3
• Updated the user's guide title............................................................................................................................. 3
22
TPS53313 Step-Down Converter Evaluation Module User's Guide
SLUU819A – DECEMBER 2011 – REVISED DECEMBER 2021
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