MIC2874YCS - Uncategorized Microchip - Free user manual and instructions
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| Product Type | High-Efficiency Step-Up (Boost) Converter IC |
| Brand | Microchip Technology |
| Model Number | MIC2874YCS |
| Function | Converts a low input voltage to a higher regulated output voltage |
| Package Type | 12-Lead DFN (Dual Flat No-Lead), 3mm x 3mm |
| Number of Pins | 12 |
| Dimensions (L x W x H) | 3.0 mm x 3.0 mm x 0.75 mm (approximate) |
| Weight | 0.03 g (typical) |
| Input Voltage Range | 0.5 V to 5.5 V (depending on configuration) |
| Output Voltage Range | Adjustable, up to 14 V (using external resistor divider) |
| Maximum Switching Current | 2 A (internal switch) |
| Switching Frequency | 2 MHz (typical) |
| Efficiency | Up to 92% (typical) |
| Quiescent Current | Low quiescent current for battery-powered applications |
| Operating Temperature Range | -40°C to +125°C |
| Protection Features | Overcurrent protection, thermal shutdown, output disconnect |
| Mounting Style | Surface Mount (SMD) |
| RoHS Compliance | RoHS compliant |
| Maintenance & Cleaning | No routine maintenance required; clean pads with isopropyl alcohol if contaminated; handle with ESD precautions |
| Safety Precautions | Operate within rated voltage and temperature limits; avoid short circuits; use proper ESD handling |
| Spare Parts & Repairability | Integrated circuit is not repairable; replace the entire device if faulty |
Frequently Asked Questions - MIC2874YCS Microchip
What is the Microchip MIC2874YCS?
The MIC2874YCS is a high-efficiency boost converter integrated circuit from Microchip. It steps up a low input voltage to a higher regulated output, ideal for battery-powered electronics.
What are the typical input voltage requirements?
The IC operates with input voltages from 0.5V to 5.5V, making it suitable for single-cell alkaline, NiMH, or lithium-ion batteries.
How do I set the output voltage with the MIC2874YCS?
The output voltage is set using an external resistor divider connected to the feedback pin. The exact formula is provided in the datasheet, allowing adjustable output up to 14V.
Can the MIC2874YCS disconnect the output when disabled?
Yes, the device features output disconnect, which fully isolates the load from the input when the converter is shut down, eliminating leakage currents.
What is the maximum current the switch can handle?
The integrated switch can handle a peak current of 2A, which allows output currents of several hundred milliamps at higher voltages depending on the input.
How efficient is the MIC2874YCS?
The converter achieves efficiency up to 92%, depending on input/output voltage and load conditions, reducing power loss in portable devices.
What protection features does the MIC2874YCS have?
It includes overcurrent protection, thermal shutdown, and output disconnect, ensuring safe operation under fault conditions.
What type of external components are required for a basic boost circuit?
A typical application requires an inductor, a Schottky diode (unless synchronous), input/output capacitors, and a resistor divider for setting the output voltage.
How should the MIC2874YCS be handled during PCB assembly?
It should be handled with ESD precautions. The exposed pad of the DFN package needs proper soldering to the PCB ground plane for good thermal performance.
Where can I find the detailed specifications and application circuit?
The full datasheet and application notes are available on the Microchip website. Search for the part number MIC2874 to download the PDF.
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USER MANUAL MIC2874YCS Microchip
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Product information
Brand : Microchip
Model : MIC2874YCS
Category : Uncategorized