The MAX17515 is a fixed-frequency, step-down power module in a thermally efficient system-in-package (SiP) package that operates from a 2.4V to 5.5V input supply voltage and supports output currents up to 5A. The device includes switch-mode power-supply controller, dual n-channel MOSFET power switches, a fully shielded inductor, as well as compensation components. The device supports 0.75V to 3.6V programmable output voltage. The high level of integration significantly reduces design complexity, manufacturing risks, and offers a true “plug-and-play” power-supply solution, reducing the time to market.
The device operates at a fixed 1MHz that requires smaller input and output capacitor size. The internal fixed constant gain at the error-amplifier output results in output-voltage positioning with respect to the load current. The fixed internal digital soft-start limits the input inrush current at startup. The device also operates in pulse-skipping mode at light loads to improve the light-load efficiency.
The MAX17515 is available in a thermally enhanced, compact 28-pin, 10mm × 6.5mm x 2.8mm SiP package and can operate over the -40°C to +85°C industrial temperature range.
MAX17515: Functional Diagram MAX17515: Functional Diagram Enlarge+
- Complete Switch-Mode Power Supply in One Package
- 2.4V to 5.5V Input Voltage Range
- 0.75V to 3.6V Programmable Output Voltage
- Auto Switch Light-Load Pulse-Skipping Mode
- Fault Protection
- Output Overvoltage Protection
- Output Undervoltage Protection
- Thermal-Fault Protection
- Peak Current Limit
- Enable Input
- Up to 94% Efficiency
- Power-Good Output
- Voltage-Controlled Internal Soft-Start
- High-Impedance Shutdown
- < 1µA Shutdown Current
- Passes EN55022 (CISPR22) Class B Radiated and Conducted EMI Standard