4.5V-60V, 2.5A high-efficiency, DC-DC step-down power module with integrated inductor

The Himalaya series of voltage regulator ICs and Power Modules enable cooler, smaller and simpler power supply solutions. The MAXM17503 is an easy-to-use, step-down power module that combines a switching power supply controller, dual n-channel MOSFET power switches, fully-shielded inductor, and the compensation components in a low-profile, thermally-efficient, system-in-package (SiP). The device operates over a wide input voltage range of 4.5V to 60V and delivers up to 2.5A continuous output current with excellent line and load regulation over an output voltage range of 0.9V to 12V. The device only requires five external components to complete the total power solution. The high level of integration significantly reduces design complexity, manufacturing risks, and offers a true plug-and-play power supply solution, reducing time-to-market.

The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes.

The MAXM17503 is available in a low-profile, highly thermal- emissive, compact, 29-pin 9mm x 15mm x 2.8mm SiP package that reduces power dissipation in the package and enhances efficiency. The package is easily soldered onto a printed circuit board and suitable for automated circuit board assembly. The device can operate over the industrial temperature range from -40°C to +125°C.

Key Features
• Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
   o Integrated Switching Power Supply Controller and Dual-MOSFET Power Switches
   o Integrated Inductor
   o Integrated Compensation Components
   o Integrated Thermal-Fault Protection
   o Integrated Peak Current Limit

• Saves Board Space in Space-Constrained Applications
   o Complete Integrated Step-Down Power Supply in a Single Package
   o Small Profile 9mm x 15mm x 2.8mm SiP Package
   o Simplified PCB Design with Minimal External BOM Components

• Offers Flexibility for Power-Design Optimization
   o Wide Input Voltage Range from 4.5V to 60V
   o Output-Voltage Adjustable Range from 0.9V to 12V
   o Adjustable Frequency with External Frequency Synchronization (100kHz to 1.8MHz)
   o Soft-Start Programmable
   o Autoswitch PWM, PFM, or DCM Current Mode Control
   o Optional Programmable EN/UVLO