Three-output DC-DC controllers with tracking/sequencing reduce 40nm logic devices costs
The controllers drive external MOSFETs to deliver a regulated 0.6 V to 19 V output voltage and up to 15 A of load current per output.
Additionally, integrated tracking/sequencing allows customers to seamlessly control core and I/O voltages. This combination of versatility, integration, and performance makes the MAX15048/MAX15049 well suited for a variety of high-reliability power-supply applications such as those in telecom, networking, storage, and server equipment.
The MAX15048/MAX15049 are precision engineered to eliminate external components and save costs. They operate from a wide 4.7 V to 23 V input range to support low-cost battery packs, as well as the latest 40 nm ASICs. Each PWM section operates from a programmable switching frequency (200 kHz to 1.2 MHz). Operating at 1.2 MHz and 120 degrees out-of-phase increases the input capacitor ripple frequency to 3.6 MHz. This reduces the RMS input ripple current and, thus, the size of the input bypass capacitor. The MAX15048/MAX15049 integrate bootstrap diodes for additional system cost savings.
The devices feature digital soft-start/soft-stop for glitch-free power-up and power-down. Power-good circuitry monitors all three outputs and provides a signal to the system controller/processor when all outputs are within regulation to enable system-level monitoring.
Integrated protection features include lossless valley-mode current limiting, hiccup-mode output short-circuit protection, and thermal shutdown.
Availability and Pricing
The MAX15048/MAX15049 are offered in a thermally enhanced, 5 mm x 5 mm, 32-pin TQFN package, and are fully specified over the -40 to +85 degrees Celsius extended temperature range. Prices start at 3.10 US Dollars (1000-up, FOB USA).
An evaluation kit, the MAX15048EVKIT+, is available to speed design times and is priced at 125 US Dollars.
- 42V quad synchronous step-down DC/DC reaches 93% efficiency
- Power amplifiers cover 2-50 GHz to simplify instrumentation applications
- IGBT and diode function on single chip deliver enhanced reliability
- 3-channel, fully-integrated ultralow power regulator/switch
- Single modem for all narrowband powerline comms standards
- IDT enters power management solutions collaboration with ZMDI
- Step-down DC/DC boosts efficiency in portables
- 60V step-down controller can eliminate intermediate power buses
- IDT partners EPC to integrate GaN and silicon technologies
- Solar concrete wall offers energy saving flexibility
- Double-sided cooling package for Toshiba's 30/60V power MOSFETs
- Dual step-down DC/DC operates from 3.4V to 42V inputs
- Wire free: Charge your smartphone while streaming 4K HD videos
- Digital signal controllers consume up to 80 percent less power
- Power-over-Ethernet meets LED lighting: Application note
- Boeing issues fire hazard warning from lithium battery bulk shipments
- Power grid pilot highlights Europe's battery storage failings
- Smart meters can destabilize grid, study says
- Solar cell splits water to make fuel
- Solar powered flight smashes long distance records
- IBM slashes next-gen power
- Battery overheating stalls solar plane record attempt
- Electric double-decker buses lead London's zero emission drive
- World first: Samsung monitor integrates inbuilt wireless charging
- Perovskite solar cells - can production costs be lowered?
- Powering wearables: Are niobium nanowire supercapacitors the answer?
- Li-ion battery to power search for life on Mars
- Artificial light harvester reveals quantum physics of efficient photosynthesis
- Graphene nanoribbon could deliver power control for ships to smartphones
- Room temperature nanoparticles - Is there a silver lining?
- Dual Phase Buck Controller Drives High Density 1.2V/60A Supply with Submilliohm DCR Sensing
- Battery Management System Tutorial
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- Investigating Die attach Failure in IGBTs using Power Cycling Tests
- Power Systems Design eBook
- Wireless Power User Guide