Key features
- DC/DC boost converter: from a 3.7 V LiPo/Li-Ion battery to 5.2 V DC for 5 V projects such as Arduino, Raspberry Pi or BeagleBone
- 5.2 V output instead of 5.0 V, for headroom with long cables, high current draw or an output diode
- Texas Instruments TPS61090 boost chip: 2 A internal switch (about 2.5 A peak limiting), synchronous conversion at 700 kHz, over 90% efficiency in most cases
- EN pin: tie to ground to turn the output off completely
- Red low-battery LED when the voltage dips below 3.2 V
- MCP73871 load-sharing charger powered from micro USB: charges 3.7/4.2 V LiPo/Li-Ion batteries at up to 1000 mA; yellow charging LED and green done LED
- Automatic switch-over to USB power when available: charge and boost at the same time with no interruption, like a UPS
- Data resistors for 1000 mA charging of iPad, iPhone and iPod via the USB A connector
- Works only with a LiPo battery attached, needed to handle load spikes; charging requires a quality 2 A USB adapter with thick power wires
Technical specifications
- Chip: TPS61090 (boost), MCP73871 (charger)
- Battery input: 3.7 V LiPo/Li-Ion
- Output voltage: 5.2 V DC
- Output current: 1000 mA and more, depending on the battery
- Charge current: max 1000 mA from micro USB
- Quiescent current: 5 mA enabled, 20 µA disabled
- Low battery threshold: 3.2 V
- Dimensions: 23 × 45 × 10 mm (with USB A connector)
- Weight: 6 g
Typical uses
Portable power for robots, Arduino projects and single-board computers such as Raspberry Pi, DIY power banks and small 5 V UPS units.
Package contents
- 1 × PowerBoost 1000C board, assembled and tested (white or black JST connector)
- 1 × loose USB A connector, to be soldered
- Battery and USB cable not included
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