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STMicroelectronics Packs 3A Buck Converter
STMicroelectronics DCP3603 delivers compact, efficient power for industrial and appliance applications.
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STMicroelectronics has introduced the DCP3603, a compact monolithic buck converter designed to deliver up to 3A output current while minimizing board space and component count.
Compact design for diverse applications
Housed in a 3mm × 1.6mm footprint, the DCP3603 supports an input voltage range of 3.3V to 36V, making it suitable for:
- Smart meters
- Household appliances
- Industrial 24V systems
Its integrated architecture simplifies power design, helping engineers accelerate development and improve system reliability.
High efficiency with minimal components
The converter leverages synchronous rectification to achieve up to 93% efficiency (at 600mA, 12V input, 5V output).
With internal power switches and compensation, only a few external components are required:
High efficiency with minimal components
The converter leverages synchronous rectification to achieve up to 93% efficiency (at 600mA, 12V input, 5V output).
With internal power switches and compensation, only a few external components are required:
- Inductor
- Bootstrap capacitor
- Filter capacitors
- Feedback resistors
This ensures a low bill of materials (BOM) and reduces overall design complexity.
Flexible operation for varied requirements
The DCP3603 is available in two variants to meet different application needs:
Flexible operation for varied requirements
The DCP3603 is available in two variants to meet different application needs:
- Forced-PWM mode – ideal for noise-sensitive environments
- Pulse-skipping mode – optimized for light-load efficiency
Additional features include:
- Frequency dithering to reduce EMI noise
- Low quiescent current (85µA) for energy savings
- Enable pin for power shutdown control
Evaluation and availability
To support rapid prototyping, STMicroelectronics offers the STEVAL-3603BC1 evaluation board, enabling quick testing and integration into new designs.
The DCP3603 is currently in production, packaged in a SOT23 6-lead form factor, with pricing starting at $0.44 (1,000-piece quantities).
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.st.com
To support rapid prototyping, STMicroelectronics offers the STEVAL-3603BC1 evaluation board, enabling quick testing and integration into new designs.
The DCP3603 is currently in production, packaged in a SOT23 6-lead form factor, with pricing starting at $0.44 (1,000-piece quantities).
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.st.com
