Synchronous buck converter delivers 90% efficiency at very low quiescent current
The LTC3630's internal synchronous rectification and its programmable peak current limit design optimize efficiency while minimizing output ripple and external component size. Furthermore, output current can be programmed between 50mA and 500mA with a single resistor. The LTC3630's output voltage can be adjusted with an external resistor divider to voltages from 0.8V to VIN, or it can be easily programmed to deliver a fixed 1.8V, 3.3V or 5V output with 1% accuracy. The combination of its 3mm x 5mm DFN package or thermally enhanced MSOP-16E and only three tiny externals offers a highly compact solution footprint for a wide array of general purpose applications.
The LTC3630 utilizes internal high side and low side power MOSFETs to ensure high efficiency in a very compact footprint. Additionally, the LTC3630 offers a precise run threshold and soft-start feature to ensure that system
start-up is well controlled in any environment. Furthermore, a feedback comparator output enables multiple LTC3630s to be paralleled for higher current applications. Due to the inherent stability of the converter, no external compensation is required, thereby minimizing the solution footprint.
Pricing for the LTC3630EDHC and the LTC3630EMSE starts at $3.20 each. Industrial grade versions, the LTC3630IDHC and LTC3630IMSE, are tested and guaranteed to operate over a -40°C to 125°C operating junction temperature range and are priced at $3.55 each. Automotive grade versions, the LTC3630HDHC and LTC3630HMSE, are tested and guaranteed to operate from -40°C to 150°C operating junction temperature and are priced at $3.80 each. Military Plastic grade versions, the LTC3630MPDHC and LTC3630MPMSE, are tested and guaranteed to operate over a -55°C to 150°C operating junction temperature range and are priced at $10.72 each. All pricing is for 1,000-piece quantities and all versions are available from stock.
For more information, visit www.linear.com/product/LTC3630.
- Multi-channel synchronous buck converter with PMBus interface
- KIT, Schaeffler optimise power steering for electric cars
- High-input flyback controller serves extended temperature range
- 60V, 3x output, buck/buck/boost DC/DC controller for light hybrids
- 4 Mbps CAN transceiver with ±60V fault protection
- Spread Spectrum Frequency Modulation Reduces Automotive LED Driver EMI
- Configurable buck DC/DCs deliver 8 A from 2 to 4 independent outputs
- 150°C, 45V LDO has 3 µA quiescent current for automotive, industrial designs
- Synchronous buck-boost controller regulates up to 250W
- Toyota adopts LEDs for adaptive high beam technology
- Microchip adds enhanced noise immunity, ECC flash to MCUs
- Supercapacitor innovation promises panel-powered cars
- Automotive MCU system power supplies for idling-stop systems
- Synchronous step-down DC/DC offers 93% efficiency at automotive voltages
- 40V, 400mA output, step-down regulator has dual tracking LDOs
- Auto chip market: upheaval ahead
- Delphi selected to build Audi’s autopilot computer
- MOST – a gigabit data backbone for future car generations?
- Is head-up display future ADAS screen?
- Automotive lighting design software models perception by human eye
- Automotive chip reliability: A matter of design methods
- How will deep learning change SoCs?
- Magneti Marelli revs up F1, motorcycle racing
- Study: Automotive industry leads digital revolution
- Multi-function integrated FET switch replaces automotive relays
- The car's the star...
- Fraunhofer launches test centre for high-voltage batteries
- MINI giving drivers a peek at 'augmented reality'
- MOSTCO demos integration of MOST bus with Autosar
- Rare earth magnets still optimum choice, says motor design expert
- Intel helps to Turbocharge Infotainment Systems Designs
- Making cars safer through technology innovation
- Supplying DC input power for HEV testing
- NSR Noise Suppressors: Wirewound Resistors
- Virtual Hardware “In-the-Loop”: Earlier Testing for Automotive Applications
- Open Standards and Product Differentiation