24V 5A Synchronous boost converter controller using LTC3786
Using the LTC3786 high performance synchronous boost converter controller that drives all N-channel power MOSFETs can be designed a very simple and high efficiency 25 volts DC at a maximum current of 5 amperes .
Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the LTC3786 to be used in high power boost applications.
This power DC converter electronic project require an input voltage range between 5 and 24 volts DC.
When biased from the output of the boost converter or another auxiliary supply, the LTC3786 can operate from an input supply as low as 2.5V after start-up.
When the input voltage is less than 8 volts, the load current available is reduced .
LTC3786 high performance synchronous boost converter controller can be configured to use either inductor DCR (DC resistance) sensing or a discrete sense resistor (RSENSE) for current sensing .
The operating frequency and inductor selection are interrelated in that higher operating frequencies allow the use of smaller inductor and capacitor values .
The LTC3786 high performance synchronous boost converter controller output voltage is set by an external feedback resistor divider carefully placed across the output .
The start-up of the VOUT is controlled by the voltage on the SS pin. When the voltage on the SS pin is less than the internal 1.2V reference, the LTC3786 regulates the VFB pin voltage to the voltage on the SS pin instead of 1.2V.
Soft-start is enabled by simply connecting a capacitor from the SS pin to ground.
At higher temperatures, or in cases where the internal power dissipation causes excessive self heating on-chip the overtemperature shutdown circuitry will shut down the LTC3786 .
For L inductor you can use PULSE PA1494.362NL and for MBOT, MTOP you can use RENESAS HAT2169H .