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Table of Contents
User’s Guide
Using the TPSM5601R5EVM and TPSM5601R5SEVM
ABSTRACT
The TPSM5601R5EVM features the TPSM5601R5 synchronous-buck power module and the
TPSM5601R5SEVM features the TPSM5601R5S synchronous-buck power module which offers frequency
spread-spectrum operation. Both EVMs are configured for operation with typical 4.2-V to 60-V input bus
applications. The output voltage is set to one of five popular values by using a configuration jumper. The EVM
supplies the full output current rating of the device. Input and output capacitors are included to accommodate the
entire range of input voltage and the selectable output voltages on the EVM. Monitoring test points are provided
to allow measurement of the following:
• Efficiency
• Power dissipation
• Input ripple
• Output ripple
• Line and load regulation
• Transient response
Control test points and jumpers are provided for use of the enable (EN) and power-good (PGOOD) features of
the device. The recommended PCB layout of the EVM maximizes thermal performance and minimizes output
ripple and noise.
Table of Contents
1 EVM Setup............................................................................................................................................................................... 2
2 EVM Connectors and Test Points..........................................................................................................................................4
3 Test Results.............................................................................................................................................................................5
4 PCB Layouts............................................................................................................................................................................6
5 Schematics..............................................................................................................................................................................9
6 Bill of Materials..................................................................................................................................................................... 10
7 Revision History................................................................................................................................................................... 10
List of Figures
Figure 1-1. EVM User Interface................................................................................................................................................... 2
Figure 3-1. ENABLE Start-Up Waveform.....................................................................................................................................5
Figure 3-2. ENABLE Shutdown Waveform.................................................................................................................................. 5
Figure 3-3. Output Voltage Ripple............................................................................................................................................... 5
Figure 3-4. Transient Performance.............................................................................................................................................. 5
Figure 4-1. Top Silk Screen (Top View)........................................................................................................................................6
Figure 4-2. Top Copper Layer......................................................................................................................................................6
Figure 4-3. Signal Layer 1........................................................................................................................................................... 7
Figure 4-4. Signal Layer 2........................................................................................................................................................... 7
Figure 4-5. Bottom Layer............................................................................................................................................................. 8
Figure 4-6. Bottom Layer Silk Screen (Bottom View).................................................................................................................. 8
Figure 5-1. TPSM5601R5EVM Schematic.................................................................................................................................. 9
List of Tables
Table 2-1. Test Point Descriptions............................................................................................................................................... 4
Table 6-1. TPSM5601R5EVM BOM.......................................................................................................................................... 10
Trademarks
All trademarks are the property of their respective owners.
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EVM Setup
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1 EVM Setup
Note
This EVM user's guide applies to both devices, TPSM5601R5 and TPSM5601R5S. The only
difference between the two EVMs are the U1 IC and the silk screen labeling.
Figure 1-1 highlights the user interface items associated with the EVM. The VIN Power terminal block (J1) is
used for connection to the host input supply and the VOUT Power terminal block (J4) is used for connection to
the load. These terminal blocks accept up to 16-AWG wire.
Figure 1-1. EVM User Interface
•
•
•
•
•
2
Use the VIN S+ and VIN S– test points along with the VOUT S+ and VOUT S– test points located near the
power terminal blocks as voltage monitoring points where voltmeters can be connected to measure VIN and
VOUT. Do not use these S+ and S– monitoring test points as the input supply or output load connection
points. The PCB traces connecting to these test points are not designed to support high currents.
Use the VIN scope (J2) and VOUT scope (J3) test points to monitor VIN and VOUT waveforms with an
oscilloscope. These test points are intended to use un-hooded scope probes outfitted with a low inductance
ground lead (ground spring) mounted to the scope probe barrel. The two sockets of each test point are on
0.1-in centers. Connect the scope probe tip to the top socket labeled "+" and connect the scope ground lead
to the bottom socket.
The control test points located near the bottom of the EVM test the features of the device. Refer to Section 2
for more information on the individual control test points.
The VOUT SELECT jumper (J6) is provided to select the desired output voltage:
– 1.2 V
– 1.8 V
– 2.5 V
– 3.3 V
– 5.0 V
Before applying power to the EVM, make sure that the jumper is present and properly positioned for the
intended output voltage. Always remove input power before changing the jumper settings.
The device can be turned on or off using the enable jumper (J5). Place the jumper in the ON position to
enable the device. Place the jumper in the OFF position to disable the device. The undervoltage lockout
(UVLO) can be set by populating resistors R1 and R2 located on the bottom side of the EVM. Refer to
the data sheet for recommended UVLO resistor values. The power good (PGOOD) test point is available
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EVM Setup
to monitor when a valid output voltage is present on the EVM. Additionally, the PG_PU pin is present as a
convenient point to connect a pullup voltage for the PGOOD signal.
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EVM Connectors and Test Points
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2 EVM Connectors and Test Points
Wire-loop test points and scope probe sockets are included for digital voltmeters (DVM) or oscilloscope probes
to aid in the evaluation of the device. Table 2-1 (1) describes each test point.
Table 2-1. Test Point Descriptions
TEST POINT
DESCRIPTION
VIN S+
Input voltage monitor. Connect the positive lead of a DVM to this point for measuring efficiency.
VIN S–
Input ground monitor. Connect the negative lead of a DVM to this point for measuring efficiency.
VOUT S+
Output voltage monitor. Connect the positive lead of a DVM to this point for measuring efficiency,
line regulation, and load regulation.
VOUT S–
Output ground monitor. Connect the negative lead of a DVM to this point for measuring efficiency,
line regulation, and load regulation.
PGND
Power ground test points
VIN Scope (J2)
Input voltage scope monitor. Connect an oscilloscope probe to this set of points to measure input
ripple voltage.
VOUT Scope (J3)
Output voltage scope monitor. Connect an oscilloscope probe to this set of points to measure
output voltage ripple and transient response.
EN (VIN)
Enable test point. EN test point is connected to VIN. Do not connect this test point to ground or
any other signal. Use the ENABLE Control header (J5) to disable the device. To monitor the enable
signal, monitor pin 2 of header J5.
ENABLE Control (J5)
Enable select jumper. Enable or disable the device using a jumper.
PGOOD
Power good test point. Monitors the power-good signal of the device. This is an open-drain signal.
A 49.9-kΩ resistor is connected to this pin and the PG_PU pin on the EVM.
PG_PU
PGOOD pullup test point. Apply a voltage to this pin to use as a pullup voltage for the PGOOD
signal. A 49.9-kΩ resistor is connected to this pin and the PGOOD pin on the EVM.
(1)
4
Refer to the product data sheet for absolute maximum ratings associated with the features in this table.
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Test Results
3 Test Results
Figure 3-1 through Figure 3-4 demonstrate the performance of the TPSM5601R5EVM under the following
condition of a 24-V input voltage, 5-V output voltage, and 1-A load.
Figure 3-1. ENABLE Start-Up Waveform
Figure 3-2. ENABLE Shutdown Waveform
Figure 3-3. Output Voltage Ripple
Figure 3-4. Transient Performance
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PCB Layouts
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4 PCB Layouts
Figure 4-1 through Figure 4-6 show the EVM PCB layout images.
Figure 4-1. Top Silk Screen (Top View)
Figure 4-2. Top Copper Layer
6
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PCB Layouts
Figure 4-3. Signal Layer 1
Figure 4-4. Signal Layer 2
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PCB Layouts
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Figure 4-5. Bottom Layer
Figure 4-6. Bottom Layer Silk Screen (Bottom View)
8
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Schematics
5 Schematics
The schematic for both the TPSM5601R5EVM and TPSM5601R5SEVM are identical with the only difference
being the U1 IC.Figure 5-1 illustrates the TPSM5601R5EVM schematic with the device (U1) populated by
TPSM5601R5.
Figure 5-1. TPSM5601R5EVM Schematic
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Bill of Materials
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6 Bill of Materials
Table 6-1 lists the TPSM5601R5EVM or TPSM5601R5SEVM bill of materials (BOM).
Table 6-1. TPSM5601R5EVM BOM
DESIGNATOR
QUANTITY
VALUE
DESCRIPTION
PACKAGE
REFERENCE
PART NUMBER
C3, C4
2
4.7 µF
CAP, CERM, 4.7 µF, 100 V, X7S
1206
GRM31CC72A475KE11L
C5, C6, C7, C8
4
100 μF
CAP, CERM, 100 μF, 10 V, X5R
1210
GRM32ER61A107ME20L
J1, J4
2
Terminal Block, 2 × 1, 5.08 mm
2×1
OSTTA024163
J2, J3
2
Socket Strip, 2 × 1, 100 mil
100 mil, 2 pin
310-43-102-41-001000
J5
1
Header, 100 mil, 3 × 1
3 pin, 100 mil
PEC03SAAN
J6
1
Header, 100 mil, 5 × 2
5 × 2, 100 mil
PEC05DAAN
R1
1
402 k
RES, 402 k, 1%, 0.1 W
0603
CRCW0603402KFKEA
R3
1
49.9 k
RES, 49.9 k, 1%, 0.1 W
0603
CRCW060349K9FKEA
R4
1
20
RES, 20, 5%, 0.1 W
0603
CRCW060320R0JNEA
R5
1
10.0 k
RES, 10.0 k, 1%, 0.1 W
0603
CRCW060310K0FKEA
R6
1
2.00 k
RES, 2.0 k, 1%, 0.1 W
0603
RC0603FR-072KL
R7
1
6.04 k
RES, 6.04 k, 1%, 0.1 W
0603
RC0603FR-076K04L
R8
1
6.98 k
RES, 6.98 k, 1%, 0.1 W
0603
RC0603FR-076K98L
R9
1
8.06 k
RES, 8.06 k, 1%, 0.1 W
0603
CRCW06038K06FKEA
R10
1
16.9 k
RES, 16.9 k, 1%, 0.1 W
0603
RC0603FR-0716K9L
TP1, TP2
2
Test Point, Multipurpose, Red
5010
TP3, TP4, TP9, TP10
4
Test Point, Multipurpose, Black
5011
TP5, TP6, TP7
3
Test Point, Multipurpose, White
5012
60-V input, 1-V to 6-V output, 1.5-A
Power Module
TPSM5601R5
U1
1
60-V input, 1-V to 6-V output, 1.5-A
Power Module with Spread Spectrum
operation
B3QFN
TPSM5601R5S
C1, C2
0
1206
C13
0
7343-40
C14
0
6.3 × 5.8 mm
C15
0
0402
R2
0
0603
7 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (July 2021) to Revision A (August 2021)
Page
• Added the TPSM5601R5SEVM..........................................................................................................................1
10
Using the TPSM5601R5EVM and TPSM5601R5SEVM
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