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Regulatory compliance

Formal Notice Required by the U.S. Federal Communications Commission

FCC NOTICE

:

This kit is designed to allow:
(1) Product developers to evaluate electronic components, circuitry, or software associated with the kit to
determine
whether to incorporate such items in a finished product and
(2) Software developers to write software applications for use with the end product.
This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all
required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product
not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless
the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit
must operate under the authority of an FCC license holder or must secure an experimental authorization under
part 5 of this chapter 3.1.2.
The evaluation kit has been designed to comply with part 15 of the FCC Technical Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
Standard applied: FCC CFR 47 Part 15 Subpart B. Test method applied: ANSI C63.4 (2014).

Formal Product Notice Required by Industry Canada Innovation, Science and Economic Development

Canada compliance

:

For evaluation purposes only. This kit generates, uses, and can radiate radio frequency energy and has not been
tested for compliance with the limits of computing devices pursuant to Industry Canada (IC) rules.
À des fins d'évaluation uniquement. Ce kit génère, utilise et peut émettre de l'énergie radiofréquence et n'a pas
été testé pour sa conformité aux limites des appareils informatiques conformément aux règles d'Industrie Canada
(IC).
This device has been tested with Innovation, Science and Economic Development RSS standards. Operation is
subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
Standard applied: ICES-003 Issue 7 (2020), Class B. Test method applied: ANSI C63.4 (2014).
Cet appareil a été testé pour les normes RSS d'Innovation, Science et Développement économique. L'utilisation
est soumise aux deux conditions suivantes: (1) cet appareil ne doit pas causer d'interférences nuisibles, et (2)
cet appareil doit accepter de recevoir tous les types d’interférence, y comprises les interférences susceptibles
d'entraîner un fonctionnement indésirable.
Norme appliquée: NMB-003, 7e édition (2020), Classe B. Méthode d'essai appliquée: ANSI C63.4 (2014).

Formal product notice required by EU

This device is in conformity with the essential requirements of the Directive 2014/30/EU (EMC) and of the
Directive 2015/863/EU (RoHS).
Standards applied (Class B): EN 61000-6-1:2019, EN 61000-6-3:2007 + A1:2011 + AC:2012, EN 55032:2015 +
A1:2020, EN 55035:2017 + A11:2020, EN 61000-3-2:2019, EN 61000-3-3:2013 + A1:2019

UM2944

Regulatory compliance

UM2944

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Rev 1

page 8/13

Summary of Contents for STEVAL-1PS03A

Page 1: ...hanks to the ST1PS03AQTR in a thin TQFN12 package of 2 0x1 7 mm a 2 2 μH inductor and two small capacitors The ST1PS03AQTR key application benefits include high efficiency and small PCB size and thickness It is extremely suitable for power conversion solutions in wearable applications and fitness accessories personal tracking monitoring smart watches sport bands energy harvesting wireless sensors ...

Page 2: ...ormance specification Table 1 Electrical performance specification Ta 25 C Symbol Parameter Min Typ Max Unit VIN Input supply voltage 1 8 3 6 5 5 V VIN_AUX Auxiliary input supply voltage 0 VIN V VOUT range Programmable by D0 D1 and D2 see Table 2 1 6 3 3 V IOUT Output current 400 mA IOUT_AUX Auxiliary output current 100 mA Table 2 Output voltage settings Device D2 D1 D0 VOUT ST1PS03 0 0 0 1 8 V 0 ...

Page 3: ...tput voltage connector OUT_F auxiliary output voltage force OUT_S auxiliary output voltage sense GND_F ground output force GND_S ground output sense CN2 load switch selection pin Place the jumper across AUX and HIGH to enable the load switch Place the jumper across AUX and LOW to disable the load switch CN3 ENABLE pin Place the jumper across EN and HIGH to enable the buck converter Place the jumpe...

Page 4: ...10 uF C4 Vout2 1 2 3 CN3 Header 3 1 2 3 CN2 Header 3 1 2 3 CN4 Header 3 AUX 1 VIN 2 SW 3 GND 4 VOUT 8 VOUT2 6 PGOOD 7 VIN_AUX 5 D0 9 D1 10 D2 11 EN 12 ST1PS03AQTR U1 DC DC converter Vin Vin Vin Vin Vin D1 D2 D0 GND GND GND GND GND Vin Vin Vout Vout Vout2 GND GND GND GND Vout_track Sw PGOOD 1 1 2 2 SHORT SHORT 1203 Vout Vout_track EN AUX PG_Track 2 1 CN9 Header 2 10 uF C2 Vin_AUX UM2944 Rev 1 page ...

Page 5: ...1 U1 ST1PS03AQTR TQFN12 Nano quiescent synchronous step down converter ST ST1PS03AQTR 5 1 TP1 Test pin through hole Test point Multicomp TEST 1 Y 6 2 JP2 CN9 2x1 through hole 3 A pitch 2 54 mm Male SIL vertical connectors Harwin M20 9993645 7 5 CN2 CN3 CN4 CN5 CN6 3x1 through hole 3 A pitch 2 54 mm Male SIL vertical connectors Harwin M20 9993645 8 3 CN1 CN7 CN8 4x1 through hole 3 A pitch 2 54 mm M...

Page 6: ...4 Board layout Figure 3 STEVAL 1PS03A top layer Figure 4 STEVAL 1PS03A bottom layer UM2944 Board layout UM2944 Rev 1 page 6 13 ...

Page 7: ...inished good Schematic diagrams Bill of materials STEVAL 1PS03AA 1 STEVAL 1PS03AA schematic diagrams STEVAL 1PS03AA bill of materials 1 This code identifies the STEVAL 1PS03A evaluation board first version UM2944 Board versions UM2944 Rev 1 page 7 13 ...

Page 8: ...no guarantee that interference will not occur in a particular installation Standard applied FCC CFR 47 Part 15 Subpart B Test method applied ANSI C63 4 2014 Formal Product Notice Required by Industry Canada Innovation Science and Economic Development Canada compliance For evaluation purposes only This kit generates uses and can radiate radio frequency energy and has not been tested for compliance ...

Page 9: ...Revision history Table 5 Document revision history Date Revision Changes 19 Oct 2021 1 Initial release UM2944 UM2944 Rev 1 page 9 13 ...

Page 10: ...mance specification 2 1 3 Input output connector descriptions 3 2 Schematic diagrams 4 3 Bill of materials 5 4 Board layout 6 5 Board versions 7 6 Regulatory compliance 8 Revision history 9 List of tables 11 List of figures 12 UM2944 Contents UM2944 Rev 1 page 10 13 ...

Page 11: ...cal performance specification Ta 25 C 2 Table 2 Output voltage settings 2 Table 3 STEVAL 1PS03A1 bill of materials 5 Table 4 STEVAL IPS03A versions 7 Table 5 Document revision history 9 UM2944 List of tables UM2944 Rev 1 page 11 13 ...

Page 12: ...igures Figure 1 STEVAL 1PS03A evaluation board 1 Figure 2 STEVAL IPS03A circuit schematic 4 Figure 3 STEVAL 1PS03A top layer 6 Figure 4 STEVAL 1PS03A bottom layer 6 UM2944 List of figures UM2944 Rev 1 page 12 13 ...

Page 13: ...cts and ST assumes no liability for application assistance or the design of Purchasers products No license express or implied to any intellectual property right is granted by ST herein Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product ST and the ST logo are trademarks of ST For additional information about S...

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