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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.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Best pillowcase ever
Color: Stormy Grey, Size: Standard
I bought these awhile ago and they have been by far my favorite pillowcases. They are worth the money. They have been through countless washes and you can’t even tell. They are cool to the touch and while they warm up a little during use they never get uncomfortably warm. They are so soft and feel great on my face. They don’t slip off the pillow as easily as my other pillow cases. I definitely recommend!
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Reviewed in the United States on December 9, 2024
★★★★★ 4
nice feel, but sleeps warmer
Color: Deep Purple, Size: King
The stretchy material does conform with the pillow more nicely than other pillowcases, but unlike other bamboo linens, I found it a much hotter material. I'd reserve this for fall/winter sleeping.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Soft and Comfortable
Color: Deep Purple, Size: Standard
My husband absolutely loves the purple pillowcases. He likes the extra length, the good quality and the softness. It could definitely fit a larger than normal pillow and has good stretch to it.
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Reviewed in the United States on March 13, 2025
★★★★★ 5
Perfect pillow case
Color: Stormy Grey, Size: Standard
Amazing stretch fabric. Nice color. Covers my purple pillow which is a queen size but, does not fit regular queen size case. I could have used a king size case but thought I would give these a try and it works. If you are on the fence, give these cases a try. I love my pillow even more now.
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Reviewed in the United States on August 10, 2024
★★★★★ 5
Soft, moisture wicking
Color: Stormy Grey, Size: Standard
Super soft pillow cases, very nice against face. They are also moisture wicking and dont seem to hold heat. My new favorite brand of sheets/pillows/pillowcases and maybe one day a bed.
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Reviewed in the United States on September 24, 2025