5V Boost Regulator

Ongoing

STD 5V Boost Regulator

Power_Module

License: CERN Open Hardware License

Mode:

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Update time： 2024-10-29 08:53:44

Creation time： 2021-12-17 10:16:01

Description

Most boost converters only switch off the boost function when disabled, still allowing current to flow through the output via the inductor and the diode. This board uses the FP6277, a synchronous boost converter, that completely switches off the power at the output when the enable pin is pulled to ground. This is great for battery-powered projects that uses sensors that need to be switched off when not in use.

With supply chain shortages making it difficult to get hold of even simple components like DC-DC converters, I wanted to design a breakout board around a chip that's easy to source from suppliers like LCSC. At the time of writing (2021-01-07) there are still more than 28 thousand FP6277 chips in stock at LCSC.

Features:

Input voltage range: 2.4-4.5V
Output voltage: 5V
Shutdown current: less than 1uA
Short-circuit protection
Output thermal protection

Hardware licensed under CERN Open Hardware License Version 2 - Weakly Reciprocal

Design Drawing

schematic diagram

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Schematic_5V Boost
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PCB

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PCB_5V Boost
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	PZ254V-11-04P	H1	HDR-TH_4P-P2.54-V-M	1	C492403
2	100uF	C4	C1206	1	C15008
3	22u	C3,C1	C0603	2
4	2.2uH	L1	L1008	1	C86092
5	10k	R2	R0603	1
6	FP6277XR-G1	FP6277	SOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP	1	C88312
7	75k	R1	R0603	1
8	300k	R9	R0603	1