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Solutions Search - LT8705 - 80V VIN and VOUT Synchronous 4-Switch Buck- Boost DC/DC Controller

80V Synchronous Buck-Boost Controller Features -55°C to 150°C Operating Junction Temperature Range

Aug 5th 2014
MILPITAS, CA - August 5, 2014 - Linear Technology Corporation announces the H- and MP-grade versions of the LT8705. This high efficiency (up to 98%) synchronous buck-boost DC/DC controller operates from input voltages above, below or equal to the regulated output voltage. The LT8705 operates over a 2.8V to 80V input voltage ...

Press Release 

 

80V Synchronous 4-Switch Buck-Boost Controller Delivers Hundreds of Watts with 99% Efficiency

Keith Szolusha - Applications Engineering Section Leader
Tage Bjorklund - Senior Applications Eng
Apr 2nd 2014
Introduction A DC/DC converter’s efficiency and component temperature are important considerations in high power applications where high current could overheat the catch diode used in an asynchronous buck or boost topology. Replacing the catch diode with a synchronous switch can significantly improve overall converter ...

Blog Post LTspice 

 

LT8705 80V VIN / VOUT Synchronous 4-Switch Buck- Boost DC/DC Controller - Video Product Brief

Bruce Haug - Product Marketing Engineer Jun 11th 2013
The LT®8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the ...

Video LTspice 

 

DC1924A - LT8705EUHF Demo Board | 36V ≤ VIN ≤ 80V; Vout = 48V @ 5A

Mar 21st 2013
Demonstration circuit 1924A is a high performance buckboost converter featuring the LT®8705 that can operate from input voltages above, below or equal to the output voltage. The demo board input range is 36V to 80V. The output is optimized for 48V at 5A, with the output current limit set at 7A. (The circuit will operate ...

Demo Board LTspice 

 

Convert Any Input Voltage from 2.8V to 80V into a Fixed Output Voltage or Output Current with Up to 98% Efficiency at 250W

Feb 11th 2013
MILPITAS, CA – February 11, 2013 – Linear Technology Corporation announces the LT8705, a very high efficiency (up to 98%) synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated output voltage. This device has four feedback loops to regulate the input current/voltage, ...

Press Release 

 

80V, 98% Efficient, 4-Switch Synchronous Buck-Boost Controller IC with 4 Regulation Loops

Al Wu - Design Engineering Manager Feb 11th 2013
In today’s modern electronic systems, the need for power conversion circuits that can do more then simply convert one voltage to another is growing. Some systems require a constant current, constant voltage output, while others may require a limit on the maximum current that can be drawn from the input. Still others ...

Video 

 

LT8705 Bi-Directional Buck-Boost Supercapacitor Backup Supply

Jan 7th 2013
The LT8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705 ...

Circuit LTspice 

 

LT8705 12V Output Converter Accepts 4V to 80V Input (5.5V Minimum to Start)

Jan 7th 2013
The LT8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705 ...

Circuit 

 

LT8705 Telecom Voltage Stabilizer

Jan 7th 2013
The LT8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705 ...

Circuit