DC625A

Series:	--
Part Status:	Active
Main Purpose:	DC/DC, Step Up or Down
Outputs and Type:	1, Non-Isolated
Voltage - Output:	3.3V
Current - Output:	1A
Voltage - Input:	2.4 V ~ 5.5 V
Regulator Topology:	Buck-Boost
Frequency - Switching:	1MHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	LTC3441
Base Part Number:	LTC3441

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DC625A Application Field and Working Principle DC/DC & AC/DC (Off-line) SMPS is an application of control and regulation technology for power supplies. DC625A is one of the off-line multi-output converters available in this field. This versatile device is ideal for applications such as power supplies, battery chargers, input line conditioning and transformerless AC power supplies.The DC625A operates with an input voltage range from 110VAC to 270VAC. It provides a steady DC voltage and power output of up to 60W with a typical output voltage range of 1.5V to 32V. It also includes features such as over-current protection, over-voltage protection, and short-circuit protection to ensure safe operation.The operating principle of DC625A is based on switch mode topology which converts the AC input voltage into DC voltage through power transformer. The power transformer is used for stepping down the input voltage. The stepped down voltage is rectified via bridge rectifier. The rectified output voltage is then filtered with the help of capacitors and inductors. The step-down converter is then used to adjust the output voltage. The DC625A works on average current mode control. An often used technique for controlling the average switch current is the peak current mode control. In this mode, the switch current is sampled and compared with the specified value taken from an internal reference. If the sample value is above the reference, the converter is triggered then the PWM action is applied to ensure that the switch is turned OFF until the current rises to an acceptable level. The DC/DC & AC/DC (Off-line) SMPS provides a vast number of options for varied applications. The DC625A in particular is a highly efficient device that is fully capable of complying with international standards. It is designed to be simple to use, reliable, and safe for long-term use.

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