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reference designDCP3603 | Demoboard DCP3603

STMicroelectronics DCP3603 | Demoboard DCP3603

Overview

TopologyBuck Converter
Input voltage36 V
Output 15 V / 3 A
IC revision1.0

Description

The DCP3603 is a wide-input voltage, easy-to-use synchronous buck converter capable of driving up to 3 A load current.The extended input range from 3.3 V to 36 V makes the device suitable for a wide range of industrial applications.The DCP3603 operates at 500 kHz or 1.0 MHz fixed switching frequency allowing the use of small inductors for an optimized solution size.Optional switching frequency dithering is implemented to improve EMI performances.It is based on a peak current mode architecture, including soft-start circuit, overcurrent protection circuit, overtemperature protection and output overvoltage protection, and is packaged in a SOT23-6L package.

Features

89% typical efficiency at 1000 mA load (VIN = 24 V, VOUT = 5 V)93% typical efficiency at 1000 mA load (VIN = 12 V, VOUT = 5 V)3.3 V to 36 V input operating voltage rangeUp to 3 A output current capability85 μA operating quiescent current500 kHz or 1.0 MHz fixed switching frequencySynchronous rectificationInternal compensation networkPeak current mode controlTwo different versions: LCM for high efficiency at light loads and LNM for noise-sensitive applicationsOutput overvoltage protectionThermal shutdownPrecision enableSwitching frequency ditheringAvailable in SOT23-6L package

Typical applications

  • Major appliances, smart metering, Industrial 12/24V bus conversion

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
RDC max.(mΩ)
fres(MHz)
Mount
SamplesAvailability & Sample
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744393305056
SPECWE-XHMI SMT Power Inductor, 5.6 µH, 6.7 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance5.6 µH
Performance Rated Current6.7 A
Saturation Current @ 30%9.7 A
DC Resistance21.8 mΩ
DC Resistance25.44 mΩ
Self Resonant Frequency21 MHz
MountSMT 
–Check availability
744393305068
SPECWE-XHMI SMT Power Inductor, 6.8 µH, 6.6 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance6.8 µH
Performance Rated Current6.6 A
Saturation Current @ 30%6.9 A
DC Resistance23.7 mΩ
DC Resistance29.28 mΩ
Self Resonant Frequency18 MHz
MountSMT 
–Check availability