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.
- DC/DC step-down converter delivers 1V to 5V to space applications
- Digi-Key’s pushes IDT’s wireless power reference kits through hackster
- Harsh-environment high input voltage, high output current linear regulator
- Power management IC eases hearing aids design
- ST takes super-junction power MOSFETs to 1500V rating
- 600V power MOSFETs with integrated high speed diodes
- Integrated 7.8 mΩ power switch handles 9A, with reverse-blocking
- LLC controller claims best-in-class efficiency for isolated DC-DC converters
- Magnetic-feedback PSU ICs applied to auxiliary/standby supplies to 35W
- 1A, 2 MHz, 60V boost/SEPIC/inverting DC/DC converter, 6µA Iq
- Wireless power made easy with plug-and-play reference kits
- 600V power FETs that get 'close to perfection', says ST
- 1.5A, 15V synchronous boost regulator with output disconnect
- Vertical GaN-based transistors produce blocking voltage exceeding 1kV
- Energy harvesting power management IC addresses wireless sensors
- Internet blackouts by 2020, warns nanoelectronics book
- Huawei reveals rapid charge batteries: 50% capacity charged in minutes
- Want longer lasting lithium ion batteries? Just add hydrogen
- Will solar cells power a Li-FI revolution?
- 48V system achieves near full-hybrid characteristics
- Tandem thin film solar cells add perovskite to boost efficiency
- Perovskite advance targets long-wavelength sunlight to boost solar cell efficiency
- Universal wireless charger meets multiple standards
- London black cabs begin journey towards battery power
- IDT to acquire ZMDI for $310million
- PoWiFi optimizes energy harvesting to power IoT sensors
- A4WP and PMA combine for create AirFuel Alliance
- Sub-threshold logic MCU maker claims low-power benchmark lead
- Reducing data centre energy consumption on three levels
- Harvest more energy from photons to improve solar cells and li-fi
- Battery Size Matters
- Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard
- Multichemistry Buck Battery Charger Controller
- Why Making the Move from a Variable Transformer to a VariPLUS is the Right Decision
- Determine Balancing Current for the LTC3305 Lead-Acid Battery Balancer
- Testing PSRR with High-Frequency Ripple
- A SEPIC Fed Buck Converter