MCP1603LT-080I/OS

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MCP1603LT-080I/OS is a monolithic high frequency synchronous buck switching regulator. It is typically used for DC-DC power solutions, general purpose batteries and portable devices. The regulator is able to deliver up to 0.8A of continuous output current. It features integrated low RDS (ON) MOSFETs, dual current sense resistors, voltage regulation with overvoltage protection, a fixed frequency of 1.2MHz, current mode control and thermal shutdown.

Application field:

• Portable devices
• General purpose batteries
• Telecommunication systems
• Computer peripherals

Working principle:

MCP1603LT-080I/OS switching regulator operates by making a high frequency pulse width modulation (PWM) output to regulate the output voltage. The PWM signal is generated from a current sense comparator. The output voltage is regulated by varying the duty cycle of the PWM signal in response to feedback. The operating frequency is set by the internal oscillator. A high frequency synchronous rectifier circuit is used to generate the output voltage

The MCP1603LT-080I/OS requires four external components: an inductor, a pair of input and output capacitors and a power diode. The inductor is used to store and transfer energy from input to output. The input and output capacitors ensure a stable voltage at the input and output terminals. The power diode is used to prevent reverse current flow when the switching regulator is off.

MCP1603LT-080I/OS is a versatile regulator with a wide range of applications. It can be used for high efficiency power supplies, general purpose batteries, portable devices and other applications where low output ripple and low output voltage noise is required.

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