STMicroelectronics DCP3603
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.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 range
● Up to 3 A output current capability
● 85 μA operating quiescent current
● 500 kHz or 1.0 MHz fixed switching frequency
● Synchronous rectification
● Internal compensation network
● Peak current mode control
● Two different versions: LCM for high efficiency at light loads and LNM for noise-sensitive applications
● Output overvoltage protection
● Thermal shutdown
● Precision enable
● Switching frequency dithering
● Available in SOT23-6L package
APPLICATIONS
● Major appliances● Smart metering
● Industrial 12/24 V bus conversion
DESCRIPTION
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.