TDK mPOL EV1703-3300-A User manual

Page 1 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
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EV1703-3300-A
EVALUATION BOARD
USER GUIDE

Page 2 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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In roduc ion
This user guide describes the evaluation board provided for the FS1703 µPOL™ product.
The board generates an output voltage (V
OUT
) of 3.3V for loads of 0–3A from an input voltage (PV
IN
) of 5V.
Specifica ions
 Input voltage (PV
IN
) = +5V
 Output voltage (V
OUT
) = +3.3V
 Output load (I
O
) = 0–3A
 Switching frequency (F
SW
) = 5 0 kHz
 Output capacitance (C
O
) = 3x22µF (MLCC)
 In put capacitance (C
IN
) = 2x22µF (MLCC)
 Dimensions (width x length x thickness) = 63 x 4 x 1.5mm
Connec ions
Name Iden ifier Descrip ion
PV
IN
J1 Input voltage (+5V)
GND J2 Ground for input voltage
V
OUT
J Output voltage (+3.3V)
GND J7 Ground for output voltage
V
CC
TP2 Internal supply (V
CC
) – output of an LDO regulator
GND TP3 Ground for internal supply
En TP11 Enable
PG TP12 Power Good
The board is configured for a single input supply. An internal low drop-out regulator generates the internal supply (V
CC
)
from PV
IN
. The Enable (En) input is connected to PV
IN
through a resistor divider, so that no Enable signal is needed.
Opera ion
To use the evaluation board:
1. Connect a well-regulated +5V input supply to PV
IN
(J1) and GND (J2).
2. Connect a load of 0–3A to V
OUT
(J ) and GND (J7).

Page 3 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
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Descrip ion
The evaluation board consists of a 4-layer PCB made from FR4 glass-reinforced epoxy laminate material. All layers use
2oz copper (equating to a thickness of 0.0694mm). The major power components, including the FS1703, are mounted
on the top side of the board.
Par reference Quan i y Type Descrip ion
FS1703 µPOL 1 – Main IC
C10, C21 2 22µF 0 05, 16V, X5R
C12 1 0.1µF 0402, 16V, X7R
C13 1 6 µF 25V
C14, C15, C16 3 22µF 0 05, 6.3V, X5R
C26 1 1µF 0603, 25V, X5R
J1 1 Red Banana connector
J2, J7 2 Black Banana connector
J 1 Green Banana connector
J10, J11 2 – 3-pin header
R1 1 2.7Ω 10%, 1/ W, 0 05 case size
R3, R7 2 49.9kΩ 10%, 1/ W, 0 05 case size
R2, R4, R9 3 0Ω 0 05 case size
C2 , C29 2 0Ω (Note 1) 0402 case size
R6 1 24.9kΩ 10%, 1/ W, 0 05 case size
VIN, PG, EN, VCC, SW_NC15, VOUT, PVIN, GNDs 10 – Test points
Note 1: 0ohm is placed on capacitor footprint to ground NC pin.
Figure 1 shows the layout of the board and Figure 2 shows a schematic of the electrical circuit.

Page 4 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 1 Board layout

Page 5 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
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Figure 2 Schematic

Page 6 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Typical performance
Figure 3 to Figure 14 show typical operating waveforms for the evaluation board, while Figure 15 shows a
thermal image of the board in operation. In all cases, the board is operating at room temperature with no
airflow; PV
IN
is 5V, V
OUT
is 3.3V and I
O
is 0–3A.
Figure 3 Startup with no load (Ch1: PV
IN
, Ch2: V
UT
, Ch3: PG, Ch5: Enable, Ch8: I
UT
)

Page 7 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 4 Startup with 3A load (Ch1: PV
IN
, Ch2: V
UT
, Ch3: PG, Ch5: Enable, Ch8: I
UT
)
Figure 5 Shutdown with VCC UVL at 3A load (Ch1: PV
IN
, Ch2: V
UT
, Ch3: PG, Ch5: Enable, Ch8: I
UT
)

Page 8 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 6 Soft turn off at 3A (Ch1: PV
IN
, Ch2: V
UT
, Ch3: PG, Ch5: Enable, Ch8: I
UT
)
Figure 7 Startup into pre-bias (Ch1: PV
IN
, Ch2: V
UT
, Ch3: PG, Ch5: Enable, Ch8: I
UT
)

Page 9 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 8 ver-current protection and auto-recover to 3A
(Ch1: PV
IN
, Ch2: V
UT
, Ch3: PG, Ch5: Enable, Ch8: I
UT
)
Figure 9 Sw and V
UT
ripple at 0A (Ch2: V
UT
Ripple, Ch4: Sw)

Page 10 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 10 Sw and V
UT
ripple at 3A (Ch2: V
UT
Ripple, Ch4: Sw)
Figure 11 Transient response 0A to 1.5A (Ch2: V
UT
rIpple, Ch3: I
UT
), peak-peak deviation = 89mV

Page 11 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 12 Efficiency
Figure 13 Power loss

Page 12 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Figure 14 Load regulation (I
UT =
0–3A)
Figure 15 Thermal image (PVIN=5V, I
UT
=3A) – maximum temperature rise = 30°C

Page 13 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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Disclaimer
IMPORTANT NOTICE AND DISCLAIMER
TDK PROVIDES THIS POWER DESIGN USER GUIDE (“Resources”) “AS IS” AND WITH ALL
FAULTS, AND DISCLAIMS. ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT
LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.
These Resources are intended for skilled developers designing with TDK products. You are solely responsible for (1) selecting the appropriate TDK
products for your application, (2) designing, validating and testing your application, (3) ensuring your application meets applicable standards, and any
other safety, security, or other requirements, and (4) ensuring your application complies with all applicable laws and regulations. These Resources are
subject to change without notice and TDK assumes no responsibility for any notices or lack thereof. TDK grants you permission to use these Resources
solely for development of an application that uses the TDK products described in the Resource.
This permission may be revoked at any time by TDK or any of its affiliates. Your use of these Resources shall be in compliance with all applicable laws
and regulations including applicable export/import controls. Reproduction and display of these Resources is prohibited. No license is granted to any
other TDK intellectual property right or to any third party intellectual property right. TDK disclaims responsibility for, and you agree to fully indemnify
TDK, its affiliates and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these Resources.
REMINDERS FOR USING THESE PRODUCTS
Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS
Please pay sufficient attention to the warnings for safe designing when using these products.
The products listed on this specification sheet are intended for use in general electric equipment (AV equipment, telecommunication equipment,
home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equipment, industrial robots)
under a normal condition and use condition.
The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or quality require a
more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to sociality, person or property.
Please understand that we are not responsible for any damage or liability caused by use of the products in any of the applications below or for any
other use exceeding the range or conditions set forth in this specification sheet.
1. Aerospace/Aviation equipment
2. Transportation equipment (cars, electric trains, ships, etc.)
3. Medical equipment
4. Power-generation control equipment
5. Atomic energy related equipment
6. Seabed equipment
7. Transportation control equipment
. Public Information-processing equipment
9. Military equipment
10. Electric heating apparatus, burning equipment
11. Disaster prevention/crime prevention equipment
12. Safety equipment
13. Other applications that are not considered general-purpose applications
When using this product in general-purpose application, you are kindly requested to take into consideration securing protection circuit/ equipment or
providing backup circuits, etc., to ensure higher safety.
This produc is subjec o a license from Power One, Inc. rela ed o digi al power echnology pa en s owned by Power One,
Inc. Power One, Inc. echnology is pro ec ed by pa en s including:
AU
3287379M 3287437AA 3290643AA 3291357AA
CN
10371856C 10452610C 10458656C 10459360C 10465848C 1069332A 11124619A 11346682A 1685299A 1685459A
1685582A 1685583A 1698023A 1802619A
EP
1561156A1 1561268A2
1576710A1 1576711A1 1604254A4 1604264A4 1714369A2 1745536A4 1769382A4
1899789A2 1984801A2
US
20040246754 2004090219A1 2004093533A1 2004123164A1 2004123167A1 2004178780A1 2004179382A1
20050200344 20050223252 2005209373A1 20060061214 2006015619A1 20060174145 20070226526 20070234095
20070240000 20080052551 20080072080 20080186006 6741099 6788036 6936999 6949916 7000125 7049798
7069021 7080265 7249267 7266709 7315156 7372682 7373527 7394445 7456617 7459892 7493504 7526660
WO
04044718A1
04045042A3 04045042C1 04062061A1 04062062A1 04070780A3 04084390A3 04084391A3 05079227A3
05081771A3 06019569A3 2007001584A3 2007094935A3
REMINDER

Page 15 Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 201 –20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1
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