Status: | Active |
---|---|
Series: | MCP1643 |
RoHS: | Compliant |
Prices starting from US$0.97
1.6A Typical Peak Input Current Limit |
Up to 550 mA LED Load Current |
Low Start-up Voltage: 0.65V (typical, 25 mA LED Current) |
Low Operating Input Voltage: down to 0.5V |
Maximum Input Voltage < VLED<5.0V |
Maximum Output Voltage: 5.0V |
Overvoltage Protection |
Low Reference Voltage: VFB= 120 mV |
Pulse-Width Modulation Mode Operation (1 MHz) |
Internal Synchronous Rectifier |
Internal Compensation |
Inrush Current Limiting |
Internal Soft-Start (240 µs typical) |
Shutdown (EN = GND): True Load Disconnect |
Dimming Control by Variable Duty Cycle |
Shutdown Current: 1.2 µA (typical) |
Overtemperature protection |
Packages:MSOP-8, 2x3 DFN-8 |
Regulator Type | Step Up (Boost) |
---|---|
Switching Frequency (kHz) | 1000 |
Input Voltage Range Min | 0.5 |
Input Voltage Range Max | 5 |
Output Current | 550 |
Temp Range Min | -40 |
Temp Range Max | 85 |
Vout Min (V) | 0.6 |
Vout Max (V) | 5 |
Quiescent Current (mA) typ | 0.03 |
Light Load Efficiency Mode | No |
Switch current (A) typ | 1.8 |
Automotive Qualified | Yes |
SHUTDOWN Current (µA) (Typ) | 1.2 |
Vfb (V) | 0.12 |
Synchronous Rectifier | Yes |
Duty Cycle Max (%) | 90 |
Pins | Packaging | 8 | DFN |
Temp Range | -40C to +85C |
Packing Media | Tube (150) |
Data Sheets |
---|
MCP1643 Data Sheet |
Application Notes |
---|
AN2041 - Battery-Powered Constant Current LED Drivers |
AN2082 - Using the MCP1643 Constant Current LED Driver for Low Start-Up Voltage Applications |
JEDEC Indicator | e3 |
---|---|
ROHS | Compliant |
China EFUP | Compliant |
Device Weight (g) | 0.0156 |
Shipping Weight (kg) | 0.033333 |
Lead Count | 8 |
Package Type | DFN |
Package Width or Size | 2x3x0.9mm |
Soldering Composition | Matte Tin |
SYNCHRONOUS BOOST CONVERTER | Microchip Technology |
Led Driver, Boost, 1Mhz, Dfn-8 | Newark Electronics |
LED DRVR Boost 1-CH PWM 5V 0.55A 8-Pin | Future Electronics |
LED DRVR Boost 1-CH PWM 5V 0.55A 8-Pin DFN T/R | Avnet America |
IC LED DRVR RGLTR DIM 550MA 8DFN | Microchip Technology Inc. MCP1643-I/MC | RS Americas |
Where can I find additional details, specifications and documents for a MCP1643-I/MC?
Additional datasheets, footprints and schematics for MCP1643-I/MC are listed on our Part Details page. You can also find images and similar parts to MCP1643-I/MC on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MCP1643-I/MC on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MCP1643-I/MC price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does MCP1643-I/MC fall under?
The MCP1643-I/MC is listed under LED Lighting Components > LED Driver ICs > DC / DC LED Driver ICs.
Can I view similar or alternative parts?
You can view similar parts to MCP1643-I/MC when available in the DC / DC LED Driver ICs range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the MCP1643-I/MC you can contact the distributor directly for product support, shipping queries etc.
Is the MCP1643-I/MC RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MCP1643-I/MC have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, Future Electronics, Avnet America and RS Americas have stock available or on a lead time for MCP1643-I/MC.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for MCP1643-I/MC often in real-time on the comparison pages.
What if I can't find stock of MCP1643-I/MC?
You can fill out our help required form which you can use to request a quote for MCP1643-I/MC from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.