QC3.0 24W step-down module (1A)
Product key benefits:
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Input voltage range marked on the module: DC 10V-30V; the product description states 5-32V.
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This is a buck (step-down) module, which can only lower the voltage to the target value.
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The module can be used in car chargers and in chargers powered by solar panels or batteries (lead-acid, Li-ion, LiFePO4, etc.).
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Weight: 9g
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Dimensions: 19.5×38.5×10.4mm
Supported charging protocols claimed by the manufacturer:
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QC, FCP, AFC, Apple 2.4A, MTK PE
Supported charging protocols detected by KM003C:
USB-A port:
24V input:
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AFC 18W (5V2A, 9V2A)
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FCP 18W (5V2A, 9V2A)
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QC2.0/3.0 (5V, 9V, 12V, 3.6-12V)
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APPLE 2.4A
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DCP
You can buy this item here:
Amazon.com | Amazon.de | AliExpress | Allegro
XFW-KC42 step-down module (1A)
Product key benefits:
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The module is available in three versions: single, double, and quad. The double and quad versions combine multiple independent single circuits sharing one power input.
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The input voltage range is indicated on the module: DC 6V-32V (minimum input voltage determined by testing: 9.7V).
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Output power up to 24W.
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This is a buck (step-down) module that can only lower the voltage to the target value.
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The module has a blue LED indicator that shows when power is present.
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The module can be used in car chargers and in chargers powered by solar panels or batteries (lead-acid, Li-ion, LiFePO4, etc.).
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Weight (double): 18.6g
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Dimensions (double): 40.2×50.4×12mm
3D models for this device:
Supported charging protocols claimed by the manufacturer:
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DCP, APPLE, Samsung, FCP, SCP, AFC, SFCP, QC2/3, MTK PE+1.1/PE+2.0
Supported charging protocols detected by KM003C:
USB-A port:
24V input:
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AFC 18W (5V2A, 9V2A)
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FCP 18W (5V2A, 9V2A)
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QC2.0/3.0 (5V, 9V, 12V, 3.6-12V)
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APPLE 2.4A
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DCP
You can buy this item here:
Amazon.com | Amazon.de | AliExpress | Allegro
6-24V to 5V 3A USB step-down module (1A)
Product key benefits:
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Input voltage range specified by the manufacturer: DC 6V-20V (minimum input voltage measured during testing: 5V).
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Output current up to 3A
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This is a buck (step-down) module that can only lower the voltage to the target value.
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The module has a red LED indicator that shows when power is connected to the module.
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The module can be used in car chargers and in chargers powered by solar panels or batteries (lead-acid, Li-ion, LiFePO4, etc.).
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The module does not support fast charging protocols. This can be useful if you intentionally prefer slower charging to help extend the device battery's service life.
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The module is very compact and inexpensive (about $1 on AliExpress).
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Weight: 3.8g
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Dimensions: 15.2×27.3×8.9mm
Supported charging protocols claimed by the manufacturer:
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DCP, APPLE 2.4A
Supported charging protocols detected by KM003C:
USB-A port:
5-20V input:
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APPLE 2.4A
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DCP
You can buy this item here:
Amazon.com | Amazon.de | AliExpress | Allegro
XY-3606T step-down module with Alu shell (4A)
Product key benefits:
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Input voltage range specified by the manufacturer: DC 9V-36V (minimum input voltage measured during testing: 8.2V).
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This is a buck (step-down) module that can only lower the voltage to the target.
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The module has a red LED indicator that indicates that power is connected to the module.
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There are two power input options: a 5.5x2.1mm DC jack or +/- terminals.
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Built-in reverse polarity and short circuit protection.
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The module can be used in car chargers powered by Li-ion batteries.
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The aluminum case is not thermally coupled to the module with thermal pads and mainly provides mechanical protection.
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The module does not support fast charging protocols. This can be useful if you intentionally prefer slower charging to help extend the device battery's service life.
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All 4 USB-A ports operate independently. Connecting another device does not interrupt power to devices already connected.
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Weight: 46.2g
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Dimensions: 40.6×72.7×30.7mm
Supported charging protocols claimed by the manufacturer:
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5.2V5A, 25W
Supported charging protocols detected by KM003C:
USB-A port:
9-36V input:
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SAMSUNG 2A
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DCP
You can buy this item here:
TPS61088 step-up module (1A)
Product key benefits:
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Module input voltage range: DC 2.8V-4.5V
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Maximum input current: 8A
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Maximum charging power via USB: 24W
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Good energy conversion efficiency
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No short-circuit protection
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This is a boost (step-up) module that can only increase the voltage to the target value.
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The module is primarily designed for 1S Li-ion battery packs, but it can also operate from other sources within the 2.8V-4.5V input range, such as 3 NiMH AA batteries connected in series (1.2V each) or 2-3 AA alkaline batteries (1.5V each).
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I use this module in my Li-ion battery discharge station project.
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Weight: 7g
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Dimensions: 16.7×47.5×8.1mm
Supported charging protocols claimed by the manufacturer:
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QC2.0, QC3.0, Huawei FCP, DCP
Supported charging protocols detected by KM003C:
USB-A port:
2.8-4.5V input:
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AFC 18W (5V2A, 9V2A)
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FCP 18W (5V2A, 9V2A)
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QC2.0/3.0 (5V, 9V, 12V, 3.6-12V)
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DCP
