Semtech announced the latest device in its buck regulator platform. The SC286 is a 4A, dual-channel regulator for point-of-load (POL) applications. It combines two step-down regulators each with 15 preset output voltages controlled by four on-chip voltage identification (VID) pins, all in a 4mm x 4mm x 0.6mm package enabling a compact, overall design footprint of less than 200mm2.
The device supports output currents up to 4A per channel, along with power conversion efficiency up to 95%, shutdown current of 1µA typ., automatic power save for high light-load efficiency, and excellent transient response. The SC286 further simplifies power supply design by integrating the regulator, loop compensation components, power MOSFETs and MOSFET drivers on one chip. This eliminates the need for external loop stabilization components and programming resistors, making component selection and layout much easier, while contributing to the small design footprint.
The SC286 is packaged in a low-profile, thermally enhanced MLPQ 28-pad package. For applications requiring one regulator, the SC186 offers the same performance, with a single output.
Key Features
- VIN: 2.9V to 5.5V; VOUT: pin-programmable 0.8V to 3.3V
- Integrated VID pins to pin-select output voltages or for dynamic voltage scaling (DVS)
- 1.6MHz switching frequency
The SC286 is available immediately in production quantities and is priced at $3.36 each in 3,000-piece lots. Evaluation boards (SC286EVB) are also available.
