LiFePO4 Charger Board based on CN3058E
Power

LiFePO4 Charger Board based on CN3058E

LiFePO4 Batteries: An Overview Compact electronic devices rely on concise li-ion battery packs. Lithium iron phosphate battery (LiFEPO4) or LFP battery is a type of lithium-ion battery that uses lithium iron phosphate as a cathode and a graphitic carbon electrode as the anode. LFP...

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PGCPSU the tiny, powerful & affordable LiPo PSU module
Power

PGCPSU the tiny, powerful & affordable LiPo PSU module

Pretty Good Cheap Power Supply Unit - PGCPSU. Get the best tiny power supply for your battery powered projects! PGCPSU is a three in one power supply board: it integrates a lithium battery charge management circuit with 5V and 3.3V DC-DC converter-based output rails to power most...

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uBoost Single AA to 3.3v 100mA Power Supply
Power

uBoost Single AA to 3.3v 100mA Power Supply

µBoost is a Single AA powered, 3.3v 100mA power source and flashlight and it can run low power devices. µBoost is small, portable, 3.3v 100mA power source for low power devices like Arduino Mini. It has white power LED and can usable as flashlight. Also it has "Battery OK" indicator...

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3.3V @ 1.5A Buck Regulator
Power supply

3.3V @ 1.5A Buck Regulator

The circuit presented here is based on LTC3601, a high efficiency, monolithic synchronous buck regulator from Linear Technology. The circuit operates at an input voltage ranging from 4V to 15V, this makes it suitable for a wide range of power supply applications. It is capable of...

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2.5V-4.2V input to 3.3V output – 1A Buck Boost Converter using LTC3441
Power supply

2.5V-4.2V input to 3.3V output – 1A Buck Boost Converter using LTC3441

This circuit can produce an output of 3.3V and 1A current continuously for a voltage input varying from 2.5V to 4.2V. The LTC3441 is a high efficient buck boost converter which plays a vital role in portable instrumentation because of its fixed frequency operation. This circuit...

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Bi-Directional Voltage Level Translator
Interface

Bi-Directional Voltage Level Translator

Lukas Fassler from Soldernerd shares his experience designing a bi-directional voltage level translator and manufacturing the board with DirtyPCBs. While most of my microcontroller designs run on 3.3 volts there is still the occasional 5 volt design. Or I do something with an...

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3.3V to 30V DC/DC converter using SN6505A
Power supply

3.3V to 30V DC/DC converter using SN6505A

Bob tipped us with his latest project. It's a 3V3/30V DC/DC converter using SN6505A from TI. Recently I'v got my samples of SN6505A, it's a really nice IC, so I decided to make a simple DC/DC converter to get familiar with it. What I like in this chip is that it can operate on input...

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Low voltage power supply
Power supply

Low voltage power supply

Dilshan Jayakody has build a low voltage power supply that is able to provide four outputs:  1.5V, 1.8V, 2.5V and 3.3V. This power supply can be used to power low voltage mcus, CPLDs and analog ICs. He writes: In this post we introduce simple and flexible, regulated low voltage...

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