LTC3785EUF#TRPBF

Frequency - Switching:	100kHz ~ 1MHz
Base Part Number:	LTC3785
Supplier Device Package:	24-QFN (4x4)
Package / Case:	24-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Current Limit, Enable, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	99%
Series:	--
Voltage - Supply (Vcc/Vdd):	2.7 V ~ 10 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck-Boost
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Application Field of LTC3785EUF#TRPBF

The LTC3785EUF#TRPBF is a high-power DC-DC step-down switching controller. It features a high switching frequency and high voltage operating range, making it suitable for a range of applications.The LTC3785EUF#TRPBF has a maximum output current of up to 4A, making it suitable for high current applications and allowing it to reach full load under a wide range of input-voltage conditions. With an adjustable switching frequency and an integral precision reference, the LTC3785EUF#TRPBF provides excellent regulation and low ripple.The LTC3785EUF#TRPBF is well-suited for use in a variety of applications, including distributed power systems, DC-DC converters, computer peripherals, automotive electronics, handheld electronics, and industrial power supplies.

Working Principle of LTC3785EUF#TRPBF

The LTC3785EUF#TRPBF is a high-performance DC-DC step-down switching controller. It incorporates an optimized continuous-conduction mode, and features a programmable output frequency and a precision reference, making it suitable for a range of applications.The LTC3785EUF#TRPBF has a pulsewidth-controlled two-stage PWM architecture. The lower stage is an oscillator which generates a 400KHz switching frequency in a synchronous buck regulator, and the upper stage is an error amplifier which sets the reference voltage for the lower-stage oscillator. The error amplifier is also used to set the current limit.The LTC3785EUF#TRPBF features a programmable current limit and operating frequency, making it suitable for a wide range of applications. In addition, the LTC3785EUF#TRPBF includes various protection features such as overvoltage protection (OVP) and programmable undervoltage lockout (UVLO) to protect the device from damaged due to overload and improper input conditions.

Conclusion

The LTC3785EUF#TRPBF is a high-performance DC-DC step-down switching controller. It features a high switching frequency and high voltage operating range, making it suitable for a range of applications. With a maximum output current of up to 4A and an adjustable frequency and precision reference, the LTC3785EUF#TRPBF provides excellent regulation and low ripple. It is well-suited for use in a variety of applications, including distributed power systems, DC-DC converters, computer peripherals, automotive electronics, handheld electronics, and industrial power supplies.

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