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Description
MICROCHIP MCP1640-I/MC DC-DC Switching Boost Step Up Regulator, Adjustable, 650mV-5.5Vin, 2V-5.5Vout, 350mAout, DFN-8The MCP1640 I MC is a 0. 65V start up synchronous Boost Regulator with true output disconnect or input output bypass option. The MCP1640 is a compact high efficiency fixed frequency synchronous step up DC DC converter provides an easy to use power supply solution for applications powered by either one cell, two cell or three cell alkaline, NiCd, NiMH, one cell Li ion or Li polymer batteries. It provides very high efficiency through integration of the
The MCP1640-I/MC is a 0.65V start-up synchronous Boost Regulator with true output disconnect or input/output bypass option. The MCP1640 is a compact high-efficiency fixed frequency synchronous step-up DC-DC converter provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell or three-cell alkaline, NiCd, NiMH, one-cell Li-ion or Li-polymer batteries. It provides very high efficiency through integration of the low resistance N-channel boost switch and synchronous P-channel switch. Low-voltage technology allows the regulator to start-up without high inrush current or output voltage overshoot from a low 0.65V input. High efficiency is accomplished by integrating the low resistance N-channel boost switch and synchronous P-channel switch. All compensation and protection circuitry is integrated to minimize the number of external components.
- Up to 96% typical efficiency
- 800mA Typical peak input current limit
- 0.65V Low start-up voltage
- 0.35V Operating input voltage
- Automatic PFM/PWM operation
- PWM operation at 500kHz
- 19µA Typical PFM mode low device quiescent current
- <1µA Shutdown current (all states)
- Internal synchronous rectifier
- Internal compensation
- Inrush current limiting and internal soft-start
- True load disconnect shutdown
- Low noise, anti-ringing control
- Over-temperature protection
Applications
Power Management, Medical, Wireless, Sensing & Instrumentation, Automotive
Warnings
ESD sensitive device, take proper precaution while handling the device.
- :
- 5.5V
- :
- 350mA
- :
- 1Outputs
- :
- 85°C
- :
- 8Pins
- :
- 5.5V
- :
- 2V
- :
- 650mV
- :
- -
- :
- Synchronous Boost (Step Up)
- :
- AEC-Q100
- :
- DFN
- :
- 575kHz
- :
- Each
- :
- MSL 1 - Unlimited
Product details
| Input Voltage Max | 5.5V |
| Output Current | 350mA |
| No. of Outputs | 1Outputs |
| Operating Temperature Max | 85°C |
| No. of Pins | 8Pins |
| Output Voltage Max | 5.5V |
| Output Voltage Min | 2V |
| Input Voltage Min | 650mV |
| Product Range | - |
| Topology | Synchronous Boost (Step Up) |
| Automotive Qualification Standard | AEC-Q100 |
| DC / DC Converter IC Case | DFN |
| Switching Frequency | 575kHz |
| Packaging | Each |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | MICROCHIP |
| Part Number | MCP1640-I/MC |
| Quantity | Each |
| Technical Data Sheet EN | |
| Product Change Notice EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Best toddler shoe!
These were our favorite shoes for our newly turned 2 year old daughter! She is now outgrowing them and we are looking for more! Best part is you can take the soul out and throw them in the washer for a quick clean! Hang to dry and they are ready the next day! Love love love!
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Reviewed in the United States on March 19, 2026
★★★★★ 2
Too heavy
While the style looks great and they seem very well made, the shoe is very heavy for a new walker. My daughter looked like she had weights on her feet. Had to return them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2021
★★★★★ 5
Fast shipping
Size: 5 Big Kid, Color: Black
Good sandals, the kid just didn't want them. Fast shipping and easy returns!
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Great shoes
Size: 6 Toddler, Color: Brown
Perfect for little ones
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Great kids sandals
Size: 9 Toddler, Color: Taupe
These are cute and my kids say they’re comfortable! We got a few colors. Definitely would purchase again. They’ve got good quality.
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Reviewed in the United States on March 18, 2026
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