LTC3612EUDC#PBF

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	LTC3612
Supplier Device Package:	20-QFN (3x4)
Package / Case:	20-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	300kHz ~ 4MHz
Current - Output:	3A
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.25V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction to LTC3612EUDC#PBF

The LTC3612EUDC#PBF is a programmable step-down DC/DC switching regulator with a maximum output current of 1.5A. It is designed for a wide range of applications, from low-power, low-voltage microprocessors to dense, high-current power supplies. The device integrates several features, such as programmable output voltage, power monitoring, input power tracking, over-temperature protection, and advanced control circuits, into a compact 7mm x 5mm package.

Application Field

The DC/DC switching regulator is a versatile regulator that is suitable for a variety of applications. It can be used in applications such as portable electronics, embedded systems, computing, instrumentation, automotive, industrial, and medical applications. The switching regulator is a highly efficient power supply, making it ideal for applications that require a long battery life or a wide operating temperature range. It has a low input voltage range, making it suitable for use with portable devices such as laptops and cell phones. Additionally, the regulator has advanced power monitoring and input power tracking functions that allow the system to monitor the input voltage and supply voltage over the full operating range. This feature allows the system to adjust the output voltage speedily to conditions such as frequency depression and surge.

Working Principle

The LTC3612EUDC#PBF Step-Down DC/DC switching regulator converts an input voltage of 2.5V to 24V into a regulated output voltage. The switching frequency is programmable, with a default value of 1.2MHz. The output can be changed by turning the RUN/SS pin to the set-point voltage using a PWM or an external DAC. The regulator utilizes a variable frequency, PWM control scheme, which allows for highly efficient operation by adjusting the frequency of the output regulator based on the current load conditions. This allows for it to quickly respond to changes in input voltage, current load, and temperature. The LTC3612EUDC#PBF also has a built-in feedback controller, allowing the output voltage to remain constant over the full input voltage range. The regulator also has a power saving feature, allowing the device to reduce the switching frequency when the load is light, further increasing efficiency and extending battery life. Additionally, the LTC3612EUDC#PBF can be put into a low-power sleep mode, which allows the device to operate at a lower frequency and current consumption.

Conclusion

The LTC3612EUDC#PBF is a highly efficient and versatile DC/DC switching regulator that can be used in a wide variety of applications. Its wide input range and low input voltage make it ideal for use with portable devices. It also features advanced features such as power monitoring, a feedback controller, and a power saving mode, making it an ideal choice for applications that require a reliable and efficient power supply.

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