• MATEKSYS PM20S-2 power module with large black heatsink on blue PCB and VIN/GND pads
  • MATEKSYS PM20S-2 power module PCB with dual inductors, solder pads for V1/V2 and G, and mounting holes
  • MATEKSYS PM20S-2 power module with black heatsink, VIN/G/OUT pads and 61 x 40 mm mounting layout
  • Side profile of MATEKSYS PM20S-2 power module with heatsink, 15mm height and 63g weight noted
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MATEKSYS PM20S-2 Power Module 9-85V DC In, Dual Step-Down Regulators, 15A Continuous / 22A Peak

MATEKSYS PM20S-2 Power Module 9-85V DC In, Dual Step-Down Regulators, 15A Continuous / 22A Peak

MATEKSYS

$85.00 USD
$85.00 USD
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Overview

MATEKSYS PM20S-2 Power Module is a power module designed for consistent and efficient power distribution. It uses 100V DC components and supports 9V to 85V DC input (also shown as 4~20S LiPo), with built-in 85V TVS protection. The board integrates 2 independent step-down (buck) voltage regulators with multiple output options, providing typical continuous output current up to 15A and peak current up to 22A.

Key Features

  • 9~85V DC input (4~20S LiPo)
  • 100V DC components
  • 85V TVS protection
  • 2x independent step-down voltage regulators (buck)
  • Typical continuous output current up to 15A; peak current up to 22A
  • 1K:25K voltage divider built-in for 3.3V based voltage ADC (also shown as = 1/26 VIN Voltage (0~3.3V))
  • Compact size: 61x40x15mm; weight: 63 g

For product support, documentation assistance, or order help, contact support@rcdrone.top or visit https://rcdrone.top/.

Specifications

Model PM20S-2
Category Power module
Components rating 100V DC components
Operating input voltage 9V to 85V DC (also shown as 4~20S LiPo)
Protection 85V TVS protection
Regulators 2x independent step-down voltage regulators
Typical continuous output current Up to 15A
Peak output current Up to 22A
Voltage sensing 1K:25K divider built-in for 3.3V based voltage ADC; shown as = 1/26 VIN Voltage (0~3.3V)
Size 61x40x15mm
Weight 63 g
Mounting dimensions (as shown) 33mm Dia.3mm; 48mm Dia.3mm

Regulator 1

  • Output voltage options: 5.3V / 6.1V / 8.1V (board markings also show Default 5V / 6V / 8V)
  • Output voltage tolerance: 1.5%
  • Type: Synchronous switching step-down (buck) regulator
  • Typical efficiency: 90% to 96%
  • Output current: typical continuous up to 15A; peak up to 22A
  • Output ripple: 25mV (VIN=42V, Output 5.3V @ 5A), 35mV (VIN=58V, Output 5.3V @ 15A)
  • Standby current: 10~30mA
  • Reverse input voltage protection: No
  • Thermal shutdown: 150°C
  • Output short-circuit tolerant: 1 seconds
  • Overcurrent protection: self-recovery
  • Tip: Input voltage >= 15V is required for continuous output current of 15A

Regulator 2

  • Output voltage options: 5.3V / 8.1V / 12.2V (board markings also show Default 5V / 8V / 12V)
  • Output voltage tolerance: 1.5%
  • Type: Synchronous switching step-down (buck) regulator
  • Typical efficiency: 90% to 96%
  • Output current: typical continuous up to 15A; peak up to 22A
  • Output ripple: 58mV (VIN=58V, Output 12V @ 5A)
  • Standby current: 10~30mA
  • Reverse input voltage protection: No
  • Thermal shutdown: 150°C
  • Output short-circuit tolerant: 1 seconds
  • Overcurrent protection: self-recovery
  • Tip: Input voltage >= 15V is required for continuous output current of 15A

What’s Included

  • 1x PM20S-2

Applications

  • Power distribution and regulated DC outputs for systems using 9~85V DC input (4~20S LiPo)
  • Projects requiring dual independent regulated output rails (5.3V/6.1V/8.1V and 5.3V/8.1V/12.2V options)

Manuals

Testing Data

4~8S Input 9-10S Input 11-14S Input 15~20S Input
Output Single BEC continuous output. After continuous running for 5 minutes, the board temperature stabilized at 80~90°C.

No thermal shutdown @ Room Temperature 20°C.
5.3v 15A 15A 15A 13A
6.1V 15A 15A 15A 12A
8.1V 15A 15A 13A 12A
12.2V 15A 13A 10A 10A
Peak output current 22A.

Peak current usually makes sense for servos. Servos do not always run at continuous high loads.

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Input(V) Input(A) Output(V) Output(A) efficiency Power loss(W) Vpp(mV)
25.00 1.12 5.31 5 94.82% 1.37 20
25.00 2.25 5.31 10 94.40% 2.97 23
25.00 3.43 5.31 15 92.89% 5.67 27
42.00 0.70 5.32 5 90.48% 2.53 25
42.00 1.36 5.31 10 92.96% 3.74 30
42.00 2.05 5.31 15 92.51% 5.97 33
58.00 0.51 5.32 5 89.93% 2.68 30
58.00 1.01 5.31 10 90.65% 4.97 32
58.00 1.51 5.31 15 90.95% 7.21 35
75.00 0.41 5.32 5 86.50% 3.59
75.00 0.79 5.31 10 89.62% 5.51
75.00 1.19 5.31 15 89.24% 8.57
85.00 0.36 5.32 5 86.93% 3.48
85.00 0.70 5.31 10 89.24% 5.71
85.00 1.05 5.31 15 89.24% 8.57
Input(V) Input(A) Output(V) Output(A) efficiency Power loss(W) Vpp(mV)
25.00 1.29 6.12 5 94.88% 1.57 25
25.00 2.58 6.12 10 94.88% 3.13 35
25.00 3.92 6.12 15 93.67% 5.81
42.00 0.80 6.12 5 91.07% 2.73 28
42.00 1.55 6.12 10 94.01% 3.67 39
42.00 2.34 6.12 15 93.41% 6.05
58.00 0.58 6.12 5 90.96% 2.77 29
58.00 1.15 6.12 10 91.75% 5.05 40
58.00 1.73 6.12 15 91.49% 7.81
75.00 0.46 6.12 5 88.70% 3.46
75.00 0.90 6.12 10 90.67% 5.71
75.00 1.35 6.12 15 90.67% 8.57
85.00 0.42 6.12 5 85.71% 4.37
85.00 0.80 6.12 10 90.00% 6.12
85.00 1.20 6.12 15 90.00% 9.18
Input(V) Input(A) Output(V) Output(A) efficiency Power loss(W) Vpp(mV)
25.00 1.71 8.16 5 95.44% 1.86 26
25.00 3.42 8.16 10 95.44% 3.72 38
25.00 5.18 8.16 15 94.52% 6.71
42.00 1.03 8.16 5 94.31% 2.32 43
42.00 2.03 8.16 10 95.71% 3.50 50
42.00 3.07 8.16 15 94.93% 6.21
58.00 0.76 8.16 5 92.56% 3.04 50
58.00 1.49 8.16 10 94.42% 4.55 56
58.00 2.25 8.16 15 93.79% 7.60
75.00 0.60 8.16 5 90.67% 3.81
75.00 1.17 8.16 10 92.99% 5.72
75.00 1.75 8.16 15 93.26% 8.25
85.00 0.53 8.16 5 90.57% 3.85
85.00 1.03 8.16 10 93.20% 5.55
85.00 1.55 8.16 15 92.90% 8.69
Input(V) Input(A) Output(V) Output(A) efficiency Power loss(W) Vpp(mV)
25.00 2.54 12.24 5 96.38% 2.22 40
25.00 5.08 12.24 10 96.38% 4.43 45
25.00 7.65 12.24 15 96.00% 7.34
42.00 1.53 12.24 5 95.24% 2.91 50
42.00 3.03 12.24 10 96.18% 4.67 56
42.00 4.57 12.24 15 95.65% 7.98
58.00 1.14 12.24 5 92.56% 4.55 58
58.00 2.23 12.24 10 94.63% 6.57 62
58.00 3.34 12.24 15 94.78% 9.59
75.00 0.88 12.20 5 92.42% 4.62
75.00 1.72 12.20 10 94.57% 6.62
75.00 2.58 12.20 15 94.57% 9.93
85.00 0.78 12.20 5 92.01% 4.88
85.00 1.53 12.20 10 93.81% 7.55
85.00 2.29 12.20 15 94.01% 10.95

Details

MATEKSYS PM20S-2 power module with large heatsink, 9–85V input specs, and 61×40×15mm size callouts

MATEKSYS PM20S-2 takes 9–85V DC input (4–20S LiPo) and provides two independent step-down BEC outputs in a compact 61×40×15mm module.

MATEKSYS PM20S-2 power module PCB with heatsink, dual inductors, and VIN/V1/V2 output solder pads

The MATEKSYS PM20S-2 power module uses clearly labeled VIN, V1 and V2 solder pads and a compact 61 x 48 mm footprint for clean wiring in builds.

MATEKSYS PM20S-2 power module with heatsink, OUT-1/OUT-2 voltage jumper pads, and VIN/GND solder points

MATEKSYS PM20S-2 provides selectable OUT-1 and OUT-2 voltage options via onboard solder jumpers and a VIN sense output marked 1/26 VIN (0–3.3V).

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