LTC3636EUFD-1#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	2
Voltage - Input (Min):	3.1V
Voltage - Input (Max):	20V
Voltage - Output (Min/Fixed):	0.6V
Voltage - Output (Max):	5V
Current - Output:	6A
Frequency - Switching:	Adjustable
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	28-WFQFN Exposed Pad
Supplier Device Package:	28-QFN (4x5)
Base Part Number:	LTC3636

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The LTC3636EUFD-1#PBF is a synchronous, step-down DC-DC regulator with two integrated power switches. It is part of the Power Management ICs (PMICs) family of voltage regulators, specifically the category of DC-DC switching regulators. Among many useful features, this switching regulator can provide adjustable and fixed output voltages from 3.3V to 20V, and switching frequencies of 200kHz to 4MHz for optimized efficiency. This LTC3636EUFD-1#PBF integrated power switch has a low-dropout current source output driver, a 3AInternal High Side N-Channel MOSFET, an adjustable soft-start feature and a Peak Current Mode controller. When it comes to the application field, this device is ideal for a wide range of consumer and industrial applications. It is especially suitable for products that require multiple power domains, as this switching regulator has two low-voltage and high-current output channels. It is thus perfect for power supplies in computers, servers and industrial equipment, as well as for automated test equipment and printer power supplies. The device is also well suited for power-sensitive applications in the automotive and communications markets, such as audio amplifiers and electronic point of sale systems.When speaking of the working principle of the device, the LTC3636EUFD-1#PBF is a synchronous, step-down DC-DC regulator with two integrated power switches. It starts by converting a 5V or 3.3V input voltage into a regulated output voltage, be it also 5V or 3.3V. A Peak Current Mode controller and a low-dropout current source output driver are then responsible for providing individual voltage-current regulation to each of the two channels, in a synchronous buck configuration with two external N-channel power MOSFETs. The Peak Current Mode controller helps to maintain a stable output voltage even under voltage, current, and frequency output variations. The controller monitors the output current and maintains continuous and consistent regulation in the event of line or load changes, meaning that the same output voltage will be provided no matter the load requirements.The controller also provides an adjustable soft-start feature that helps reduce output inrush current during startup. Once the two power switches reaches its maximum on-time, the device will automatically switch from pulse width modulation (PWM) to skip or burst modes, depending on the loading. The LTC3636EUFD-1#PBF can also operate continuously in economical continuous conduction mode (CCM) between 500mA and 3A.Overall, the LTC3636EUFD-1#PBF is an ideal DC-DC power supply solution for applications that require both low-voltage and high-current output channels. Its Peak Current Mode controller, adjustable soft-start feature and skip or burst modes ensure efficient, stable and reliable power regulation, while its synchronous buck configuration and low-dropout current source output driver provide accurate voltage regulation. Due to its features and range of applications, the LTC3636EUFD-1#PBF can be an advantageous solution for multiple markets.

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