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reference designDCP3603 | Demoboard STEVAL-3603BC1

STMicroelectronics DCP3603 | Demoboard STEVAL-3603BC1

Overview

TopologyBuck Converter
Input voltage36 V
Output 15 V
IC revision1.0

Description

The STEVAL-3603BC1 evaluation board demonstrates a smart converter design, able to deliver up to 3 A output current from a 3.3 V to 36 V input, with a 5.0 V output voltage. The board features the DCP3603 miniaturized synchronous step-down converter, which implements enhanced peak current control and advanced design circuitry to minimize quiescent current.The board demonstrates how highly efficient conversion can be achieved with just DCP3603, an inductor, two small capacitors, and two resistors. The board highlights key application benefits made possible by DCP3603, including high efficiency and small PCB size, and is ideal for power conversion solutions in major appliances, smart metering, industrial 24 V bus conversion, and general-purpose wide Vin power supplies. The device used on this board is supplied in the thin SOT23-6L package.

Features

85 uA input quiescent current1 MHz fixed switching frequency3.3 V to 36 V input operating voltage range5 V output voltageSynchronous rectificationInternal compensation networkPeak current mode controlPrecision enableWEEE and RoHS compliant (hardware only)

Typical applications

  • Power supplies and converters

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
RDC max.(mΩ)
Pins
Type
IR(A)
Working Voltage(V (AC))
SamplesAvailability & Sample
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885012206095
SPECWCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012209048
SPECWCAP-CSGP MLCCs 50 V(DC), 4.7 µF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance4.7 µF
Capacitance±10% 
Rated Voltage50 V (DC)
Size1210 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor5 %
Insulation Resistance0.02 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width2.5 mm
Height2.5 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
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885012209073
SPECWCAP-CSGP MLCCs 50 V(DC), 10 µF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance10 µF
Capacitance±10% 
Rated Voltage50 V (DC)
Size1210 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor10 %
Insulation Resistance0.01 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width2.5 mm
Height2.5 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
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885012107019
SPECWCAP-CSGP MLCCs 25 V(DC), 22 µF, ±20%
Simu­lation–
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
Capacitance22 µF
Capacitance±20% 
Rated Voltage25 V (DC)
Size0805 
Operating Temperature -55 °C up to +85 °C
Dissipation Factor10 %
Insulation Resistance0.002 GΩ
Ceramic TypeX5R Class II 
Length2 mm
Width1.25 mm
Height1.25 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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74438336100
SPECWE-MAPI SMT Power Inductor, –, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
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Size3020 
Operating Temperature -40 °C up to +125 °C
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Length3 mm
Width3 mm
Height2 mm
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Inductance10 µH
Performance Rated Current1.65 A
Saturation Current @ 30%3 A
DC Resistance280 mΩ
Self Resonant Frequency18 MHz
Operating Voltage80 V
MountSMT 
DC Resistance322 mΩ
Pins2 
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Rated Current1.2 A
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61300311121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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PackagingBag 
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MountTHT 
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Pins3 
TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
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61300411121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length10.16 mm
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PackagingBag 
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MountTHT 
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Pins4 
TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
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744393305033
SPECWE-XHMI SMT Power Inductor, –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
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Size5050 
Operating Temperature -40 °C up to +125 °C
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Length5.55 mm
Width5.35 mm
Height5.1 mm
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Inductance3.3 µH
Performance Rated Current9.2 A
Saturation Current @ 30%12.3 A
DC Resistance13.2 mΩ
Self Resonant Frequency26 MHz
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MountSMT 
DC Resistance16.6 mΩ
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