MAX15041
PRODUCTIONLow-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM Step-Down DC-DC Regulator with Internal Switches
Low-Cost, 3A, DC-DC Regulator with Internal Switches Ideal for Low-Current Power Rails
- Part Models
- 2
- 1ku List Price
- Starting From $5.72
Overview
- Up to 3A of Continuous Output Current
- ±1% Output Accuracy Over Temperature
- 4.5V to 28V Input Voltage Range
- Adjustable Output Voltage Range from 0.606V to 0.9 x VIN
- Internal 170mΩ RDS-ON High-Side and 105mΩ RDS-ON Low-Side Power Switches
- Fixed 350kHz Switching Frequency
- Up to 93% Efficiency
- Cycle-By-Cycle Overcurrent Protection
- Programmable Soft-Start
- Stable with Low-ESR Ceramic Output Capacitors
- Safe Startup into Prebiased Output
- Enable Input and Power-Good Output
- Fully Protected Against Overcurrent and Overtemperature
- VDD LDO Undervoltage Lockout
- Space-Saving, Thermally Enhanced, 3mm x 3mm Package
The MAX15041 low-cost, synchronous DC-DC converter with internal switches delivers an output current up to 3A. The MAX15041 operates from an input voltage of 4.5V to 28V and provides an adjustable output voltage from 0.606V to 90% of VIN, set with two external resistors. The MAX15041 is ideal for distributed power systems, preregulation, set-top boxes, television, and other consumer applications.
The MAX15041 features a peak-current-mode PWM controller with internally fixed 350kHz switching frequency and a 90% maximum duty cycle. The current-mode control architecture simplifies compensation design, and ensures a cycle-by-cycle current limit and fast response to line and load transients. A high-gain transconductance error amplifier allows flexibility in setting the external compensation by using a type II compensation scheme, thereby allowing the use of all ceramic capacitors.
This synchronous buck regulator features internal MOSFETs that provide better efficiency than asynchronous solutions, while simplifying the design relative to discrete controller solutions. In addition to simplifying the design, the integrated MOSFETs minimize EMI, reduce board space, and provide higher reliability by minimizing the number of external components.
The MAX15041 also features thermal shutdown and overcurrent protection (high-side sourcing and low-side sinking), and an internal 5V LDO with undervoltage lockout. In addition, this device ensures safe startup when powering into a prebiased output.
Other features include an externally adjustable soft-start that gradually ramps up the output voltage and reduces inrush current. Independent enable control and power-good signals allow for flexible power sequencing.
The MAX15041 is available in a space-saving, high-power, 3mm x 3mm, 16-pin TQFN-EP package and is fully specified from -40°C to +85°C.
Applications
- Consumer Products
- Distributed Power Systems
- Preregulators
- Set-Top Boxes
- Televisions
- Wall Adapters
- XDSL Modems
Documentation
Data Sheet 1
User Guide 1
Design Note 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 |
|---|---|---|---|
| MAX15041ETE+ | Thin Quad Flatpack, No Leads | ||
| MAX15041ETE+T | Thin Quad Flatpack, No Leads |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 2, 2025 - 2505 PIN/ERRATA |
||
| MAX15041ETE+ | ||
|
Mar 9, 2023 - 2276A WAFER FAB |
||
| MAX15041ETE+ | ||
| MAX15041ETE+T | ||
|
Sep 18, 2020 - 2054 ASSEMBLY |
||
| MAX15041ETE+ | ||
| MAX15041ETE+T | ||
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| MAX15041ETE+ | ||
| MAX15041ETE+T | ||
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX15041ETE+T | ||
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
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 1
Evaluation Kits
Evaluation Kit for the MAX15041
Latest Discussions
No discussions on MAX15041 yet. Have something to say?
Start a Discussion on EngineerZone®