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Bono.
Recently, by chance, I have had more opportunities to develop gadgets. Since gadgets are required to be portable and compact, they need to operate with limited power.
In this issue, we have investigated microcontrollers that operate at low voltages and step-up DC/DC converters that support low input voltages, so we leave this as a history.
コンテンツ
Low-voltage microcontroller
Renesas RX200
Operation at 1.62V is possible at 20MHz or lower.
TI MSP430
16-bit Ultra-low Power Microcontroller MSP430 - Low Voltage Series - MSP430C092 - TI
This is also driven by a fairly low voltage.
0.9V to 1.5V at 1MHz and 1.5V to 1.65V at 4MHz.
Epson S1C63000
This one is 1.1V! It is driven at 4MHz.
Sanyo LC87FA308A
Developed low-voltage, ultra-low power "8-bit Flash microcontroller
I noticed that the homepage had disappeared. It seems to be disconnected.
Step-up DC/DC converter for low input voltage
Seiko Instruments Inc. S-8351/8352
S-8351/8352 | Semiconductor Division, Seiko Instruments Inc.
Above is the input voltage of 0.9V.
There are many other types.
Switching Regulator (DC/DC Converter) | Semiconductor Division, Seiko Instruments Inc.
HOLTEK HT7750A
This is the type that turns a voltage of about 0.7V into 5.0V.
There are also other types that use 3.3V. It would be good to use different types depending on the application in which they are used.
LTC3108
LTC3108 0.02V Ultra-low Voltage Boost Converter - LTC3108 - Net Sales
This is a module and is for reference only.
However, the ultra constant voltage input of 20mV is attractive.
I wonder if there is anything smaller in size.
＼電子工作歴9年の私のイチ押し！ELEGOOの電子工作キット／
