Tag Archives: Switching

LTC3106 – 300mA Low Voltage Buck-Boost Converter with PowerPath

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Linear Technology announces the LTC3106, a highly integrated, 1.6µA quiescent current 300mV start-up buck-boost DC/DC converter with PowerPath™ management, optimized for multisource, low power systems. The LTC3106 is ideal for powering low power wireless sensors from rechargeable or primary batteries supplemented by energy harvesting. The LTC3106 incorporates maximum power point control (MPPC) making it compatible with common high impedance power sources, including photovoltaic cells, thermoelectric generators (TEGs) and fuel cells.

LTC3106 – 300mA Low Voltage Buck-Boost Converter with PowerPath – [Link]

LTC3106 – 300mA Low Voltage Buck-Boost Converter

3106

The LTC3106 is a highly integrated, 1.6μA quiescent current 300mV startup buck-boost DC/DC converter with PowerPath management, optimized for multisource, low power systems. The LTC3106 is ideal for powering low power wireless sensors from rechargeable or primary batteries supplemented by energy harvesting. If the primary power source is unavailable, the LTC3106 seamlessly switches to the backup power source. The LTC3106 is compatible with either rechargeable or primary cell batteries and can trickle charge a backup battery whenever there is an energy surplus available.The LTC3106 provides 300mA steady state and 650mA peak load current at up to 92% efficiency.

LTC3106 – 300mA Low Voltage Buck-Boost Converter – [Link]

LTC3815 – 6A Monolithic Synchronous DC/DC Step-Down Converter

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Linear Technology Corporation announces the LTC3815, a high efficiency 6A monolithic synchronous step-down DC/DC converter with an I2C-based PMBus interface for digital power system management (PSM). The LTC3815’s simplified and intuitive PMBus “Lite” command set makes it simple to use. The digital interface provides programming and read back of voltage, current, temperature and faults; all supported by LTpowerPlay™ software. This interface allows the output voltage to be margined over a ±25% range with 0.1% resolution. The default output voltage is set with a single external resistor and will power up to this voltage with or without the serial interface.

LTC3815 – 6A Monolithic Synchronous DC/DC Step-Down Converter – [Link]

SparkFun: A look inside some common power supplies

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MTaylor @ sparkfun.com takes a look inside different power supplies he has on his box.

Power supplies are everywhere these days. With the advent of switching power supplies, the cost of high-current supplies has radically dropped. Maybe you’ve noticed how the large, heavy, wall-wart style adapters are no longer lurking around your baseboards, falling out of their sockets? Or occupying several of your valuable power-strip positions? But not all power supplies are created equal.

SparkFun: A look inside some common power supplies – [Link]

LT8331 – Low IQ Boost/SEPIC/ Flyback/Inverting Converter

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Linear Technology Corporation announces the LT8331, a current mode step-up DC/DC converter with an internal 500mA, 140V switch. It operates from an input voltage range of 4.5V to 100V, making it suitable for use with a wide range of input sources found in industrial, transportation and avionic applications. The LT8331 can be configured as either a boost, SEPIC, flyback or inverting converter. Its switching frequency is programmable from 100kHz to 500kHz, enabling designers to minimize external component sizes.  Burst Mode® operation reduces quiescent current to only 6µA while keeping output ripple below 20mVP-P. The combination of a high voltage MSOP-16E package and tiny externals ensures a very compact footprint while minimizing solution cost.

LT8331 – Low IQ Boost/SEPIC/ Flyback/Inverting Converter – [Link]

LT8714 – 80V/5A synchronous 4-quadrant DC/DC controller

8714

Linear Technology Corporation announces the LT8714, an 80V input synchronous PWM four quadrant output DC/DC controller. This device cleanly transitions the output voltage through zero volts with up to 5A sourcing and sinking current capability, regardless of the output voltage polarity, making it ideal for regulating to positive, negative, or zero volts. The bipolar output enables the LT8714 to source or sink current, regardless of the output voltage polarity. Applications include bidirectional current sources, test systems, high power low frequency signal amplification, back body biasing, thermoelectric coolers (TECs) and electronic window tinting

LT8714 – 80V/5A synchronous 4-quadrant DC/DC controller – [Link]

 

1.2V TO 35V DC-DC CONVERTER

G40_1

1.2V to 35V Adjustable DC-DC Converter project has been design around TI’s LM2576-ADJ IC. Inputs supply 40 VDC. LM2576-ADJ is a monolithic integrated circuit that provides all the active functions for step down switching regulator, capable of driving 3A load with excellent line and load regulation.this board has minimum number of components.

Features

  • Output 1.2 to 35 VDC @ 3 A regulated low ripple DC voltage
  • Onboard potentiometer for output voltage adjust
  • Onboard bridge rectifier for AC voltage input
  • LED indication at input
  • Screw Terminal connectors for input and output
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 70 mm x 63 mm

1.2V TO 35V DC-DC CONVERTER – [Link]

LT8331- Low IQ Boost/SEPIC/ Flyback/Inverting Converter

8331

The LT8331 is a current mode step-­up DC/DC converter with an internal 500mA, 140V switch. It operates from an input voltage range of 4.5V to 100V, making it suitable for use with a wide range of input sources found in industrial, transportation and avionic applications. The LT8331 can be configured as either a boost, SEPIC, flyback or inverting converter. Its switching frequency is programmable from 100kHz to 500kHz, enabling designers to minimize external component sizes. Burst Mode operation reduces quiescent current to only 6µA while keeping output ripple below 20mV. The combination of a high voltage MSOP­-16E package and tiny externals ensures a very compact footprint while minimizing solution cost.

LT8331 – Low IQ Boost/SEPIC/ Flyback/Inverting Converter – [Link]

Single Regulator contains buck and boost controllers

7812

Linear Technology Corporation introduces the LTC7812, a dual output (boost + buck), low quiescent current synchronous DC/DC controller. When cascaded, its independent step-up (boost) and step-down (buck) controllers regulate the output voltage from an input voltage that can be above, below or equal to the output voltage, maintaining output regulation during cold crank and load dump conditions. Unlike conventional single inductor buck-boost regulators, the LTC7812’s cascaded boost + buck solution provides fast transient response with continuous, non-pulsating, input and output currents, substantially reducing ripple voltage and electromagnetic interference (EMI), making it ideal for automotive, industrial and high power battery operated systems.

Single Regulator contains buck and boost controllers – [Link]

SOS webinar – Simple and efficient solution for wide voltage range applications

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LINEAR TECHNOLOGY
Term: 2015.11.25 10:00 – 11:30 CET

Learn more about available topologies for input voltage higher and lower from output level. Focus on the most efficient way to convert power in four-switch buck-boost topology.

  • available topologies of Vin min < Vout < Vin max and differences between them
  • four-switch buck-boost topology as the most efficient, flexible and the smallest solution
  • buck-boost solutions from Linear Technology, applied to real end-devices
  • Diskusia

SOS webinar – Simple and efficient solution for wide voltage range applications – [Link]