MAX15050
PRODUCTIONHigh-Efficiency, 4A, 1MHz, Step-Down Regulators with Integrated Switches in 2mm x 2mm Package
DC-DC Regulators for 3.3V/5V Optimized for Minimizing Space and Providing Great Efficiency
- Part Models
- 2
- 1ku List Price
- Starting From $2.35
Overview
- Internal 18mΩ RDS(ON) MOSFETs
- Pulse-Skip Mode for High-Efficiency Light Load (MAX15050)
- Continuous 4A Output Current
- ±1% Output-Voltage Accuracy Over Load, Line, and Temperature
- Operates from 2.9V to 5.5V Supply
- Adjustable Output from 0.6V to (0.9 x VIN)
- Adjustable Soft-Start Reduces Inrush Supply Current
- Factory-Trimmed 1MHz Switching Frequency
- Compatible with Ceramic, Polymer, and Electrolytic Output Capacitors
- Safe Startup Into Prebias Output
- Enable Input/Power-Good Output
- Fully Protected Against Overcurrent and Overtemperature
- Overload Hiccup Protection
- Sink/Source Current for DDR Applications
- 2mm x 2mm, 16-Bump (4 x 4 Array), 0.5mm Pitch WLP Package
The MAX15050/MAX15051 high-efficiency switching regulators deliver up to 4A load current at output voltages from 0.6V to (0.9 x VIN). The devices operate from 2.9V to 5.5V, making them ideal for on-board point-of-load and postregulation applications. Total output-voltage accuracy is within ±1% over load, line, and temperature.
The MAX15050/MAX15051 feature 1MHz fixed-frequency PWM operation. The MAX15050 features pulse-skip mode to improve light-load efficiency. The MAX15050 soft-starts in a monotonic mode and then operates in the forced PWM mode or pulse-skip mode depending on the output load current condition. The MAX15051 soft-starts in the monotonic mode and operates in the forced PWM mode. The high operating frequency allows for small-size external components.
The low-resistance on-chip nMOS switches ensure high efficiency at heavy loads while minimizing critical parasitic inductances, making the layout a much simpler task with respect to discrete solutions. Following a simple layout and footprint ensures first-pass success in new designs.
The MAX15050/MAX15051 incorporate a high-bandwidth (> 26MHz) voltage-error amplifier. The voltage-mode control architecture and the voltage-error amplifier permit a type III compensation scheme to achieve maximum loop bandwidth, up to 200kHz. High loop bandwidth provides fast transient response, resulting in less required output capacitance and allowing for all-ceramic capacitor designs.
The MAX15050/MAX15051 feature an output overload hiccup protection and peak current limit on both high-side and low-side MOSFETs. These features provide for ultra-safe operation in the cases of short-circuit conditions, severe overloads, or in converters with bulk electrolytic capacitors.
The MAX15050/MAX15051 feature an adjustable output voltage. The output voltage is adjustable by using two external resistors at the feedback or by applying an external reference voltage to the REFIN/SS input. The MAX15050/MAX15051 offer programmable soft-start time using one capacitor to reduce input inrush current. A built-in thermal shutdown protection assures safe operation under all conditions. The MAX15050/MAX15051 are available in a 2mm x 2mm, 16-bump (4 x 4 array), 0.5mm pitch WLP package.
Applications
- ASIC/CPU/DSP Core and I/O Voltages
- Base-Station Power Supplies
- DDR Power Supplies
- Point-of-Load
- Portable Applications
- RAID Control Power Supplies
- Server Power Supplies
- Telecom and Networking Power Supplies
Documentation
Data Sheet 1
User Guide 1
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX15050EWE+ | Wafer-Level Package 4x4 Bump, Full Array | ||
| MAX15050EWE+T | Wafer-Level Package 4x4 Bump, Full Array |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
ADI Power Studio™ Designer
ADI Power Studio™ Designer is the next-generation tool for IC-level, power supply design, guiding engineers to faster, validated solutions.
Learn MoreSIMPLIS Models 2
Evaluation Kits
Evaluation Kit for the MAX15051
Evaluation Kit for the MAX15050
Reference Designs
4A, 1.8V Step-Down DC-DC Converter with Integrated Switches Reference Design
Part Used
Design & Integration Tools
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