RPL-3.0-EVM-1 - RECOM - Datasheet.Directory

www.recom-power.com REV.: 0/2020 P-1

RPL-3.0-EVM-1

Evaluation Module

• Evaluation platform for RPL-3.0 Buck

Regulator Module

• Thermal design considerations included

• EMI Class A ﬁlter

• Easy evaluation of output voltage selection,

control, power good and sensing functions

Features

Evaluation

Module

Description

Caution:

ESD sensitive. Always follow ESD preventative procedures when

handling the product!

Quick Start Guide

1. Connect P3 to power supply (observe correct polarity!)

2. Connect P4 to the load (no load operation is allowed)

3. The evaluation module is preset to 5Vout.

The output voltage can be selected with values of 1.8V, 3.3V, and 5V by shorting a 0W

resistor to the respective places as seen in the board silkscreen.

4. The sense pin is connected to the RPL output pin, so the preset voltage is very accurate at

the output of the RPL. To compensate any losses of the ﬁlter, remove the resistor at R1, and

solder a zero ohm resistor at R3.

5. CTRL

The device is preset as normally on. It can be disabled by pulling the CTRL pad to GND.

Short R5 to disable the device.

Selection Guide

Part

Number

Input Voltage

Range

[VDC]

Output

Voltage (1)

[VDC]

Output

Current max.

[A]

RPL-3.0-EVM-1

4.0 - 18 1.8

34.5 - 18 3.3

6.5 - 18 5

Notes:

Note1: refer to SAFE OPERATING AREA of RPL-3.0 datasheet

The RPL-3.0-EVM-1 generates a constant output voltage selectable from 1.8V, 3.3V, or 5V from a DC

input in the range of 4 – 18V. It has a maximum continuous output current of 3 A.

All the functions of the RPL-3.0 such as output voltage selection, control, power good, and output sense

can be readily evaluated. Also the behavior in overload or over-temperature can be evaluated easily

before it is designed in.

The evaluation board also contains the ﬁlter components to meet EMC Class A levels. Alternate com-

ponent positions are included to allow experimentation to optimize the EMC performance depending on

operating conditions and budget.

www.recom-power.com REV.: 0/2020 P-2

Evaluation Module

Speciﬁcations (measured @ Ta= 25°C, full load and after warm-up unless otherwise stated)

RPL-3.0-EVM-1

Pin Name Description

1 NC No Connection

2 NC No Connection

Pin Name Description

1 NC No Connection

2 NC No Connection

Pin Name Description

1 VIN Positive Input Voltage (observe correct polarity!)

2 GND Common GND

Pin Name Description

1 VOUT Positive Output Voltage

2 GND Common GND

Pin Name Description

1 VIN Positive Input Voltage

2 GND Negative Input Voltage (GND)

3 GND Negative Output Voltage (GND)

4 VOUT Positive Output Voltage

5,6 SENSE Output Voltage Sense Pin (leave open if not used)

7 TRIM TRIM Pad (leave open if not used)

8 GND Negative Input Voltage (GND)

9 CTRL CTRL Pad (leave open if not used)

10 VIN Positive Input Voltage

11 PGOOD Power Good Signal

Connector Description

Pads Direct Connection

Component Placement

RPL-3.0-EVM-1

11 10 9 8 7 6

FOR EVALUATION ONLY

www.recom-power.com/eval-ref-boards

VOUT SELECT

VIN

VOUT

SENSE

GND

4V to 18V 3A max.

VINPGOOD CTRL GND TRIM SENSE

C1 C2 C3 C4 C5 C6

C7 C8 C9 C10

C11

P1 P2

C13

C12

R10 3.3V

R11 5V

R15

R9 1.8V

R5 R17 R16

P1 (Not Mounted)

P2 (Not Mounted)

www.recom-power.com REV.: 0/2020 P-3

Evaluation Module

Speciﬁcations (measured @ Ta= 25°C, full load and after warm-up unless otherwise stated)

RPL-3.0-EVM-1

1206

0603

C13

0603

1206

1210

C12

0603

1206

C10

1206

C11

1206

L3 1812 L7 0805

L6 1206

L5 2220

L4 0805

2220

L2 1206

0603

R10

0603

R11

0603

U1 RPL-3.0

VIN VOUT

+Sense

CTRL

VOUT

SENSE

TRIM

3.3V

1.8V

VOUT Select

VIN

VCC

PGND AGND

3,4

Schematic

Description

U1: RPL-3.0 power module.

C1,C2,L1,L2,L3,L4,C3,C4,C5,C6: allow placement of various sized components to test input ﬁlter design. The populated ﬁlter is designed to

meet EN55022 class A. Note: Connect a 220uF across the input for damping the LISN.

C7,C8,C9,C10,L5,L6,L7,C11: allow placement of various sized components to test output ﬁlter design. The populated ﬁlter is designed to meet

EN55022 class A. Note: Connect a 220uF across the input for damping the LISN.

R2 and R5: conﬁgure CTRL. R2 is populated to enable the RPL-3.0. Short R5 in order to disable the RPL-3.0.

R1: populated zero ohm resistor for direct output voltage measurement. If sense is desired at a different location, for example after the ﬁlter or

directly at the load, unsolder R1, and connect sense to the new measurement point.

R3: sense point for output voltage after the ﬁlter. To set sense point here, remove R1 and solder a zero ohm resistor at R3.

VOUT Selection: the output voltage can be selected with values of 1.8V, 3.3V, and 5V by shorting a zero ohm resistor to the respective places

as seen in the board silkscreen.

R16, R17: trim the output voltage. Refer to “OUTPUT VOLTAGE TRIMMING”

Notes:

Note2: Gray colored components are not mounted

www.recom-power.com REV.: 0/2020 P-4

Evaluation Module

Speciﬁcations (measured @ Ta= 25°C, full load and after warm-up unless otherwise stated)

RPL-3.0-EVM-1

OUTPUT VOLTAGE TRIMMING

Voutset = 1.8V

Trim up

Trim down

Voutset = 1.7 1.6 1.5 1.44 [VDC]

Rdown (E96) ≈ 422k 187k 110k 84k5 [W]

Voutset = 3.1 3 2.8 2.64 [VDC]

Rdown (E96) ≈ 536k 340k 187k 130k [W]

Voutset = 4.7 4.5 4.3 4 [VDC]

Rdown (E96) ≈ 619k 348k 237k 150k [W]

Voutset = 1.82 1.88 1.90 1.98 [VDC]

Rup (E96) ≈ 1M87 464k 374k 210k [W]

Voutset = 3.4 3.5 3.6 3.63 [VDC]

Rup (E96) ≈ 374k 187k 124k 113k [W]

Voutset = 5.1 5.2 5.3 5.5 [VDC]

Rup (E96) ≈ 374k 187k 124k 75k [W]

Voutset = 5V

Voutset = 3.3V

RHI RLO Vref

37k6W47kW0.8VDC

Voutnom = nominal output voltage [VDC]

Voutset = trimmed output voltage [VDC]

Vref = reference voltage [VDC]

Rup = trim up resistor [kW]

Rdown = trim down resistor [kW]

RHI, RLO = internal resistors [kW]

Calculation:

The RPL-3.0 offers the feature of trimming the output voltage by using external trim resistors. The values for trim resistors are shown in trim

tables below according to E96 values; therefore, the speciﬁed voltage may slightly vary. Refer to “Selection Guide” for applicable Vout range.

Trim up

Voutset= 5.1VDC Voutset= 4VDC

Rup

+Vout

Trim

Rdown

GND

Trim

Trim down

Rup

+Vout

Trim

Rdown

GND

Trim

(R17) (R16)

Practical Example, trim up: Practical Example, trim down:

Rup =37k6W - 1k =376kW

5.1 - 5

Rup according to E96 ≈ 374kWRdown according to E96 ≈ 150kW

Rdown =(4 - 0.8) x 47kW = 150k4W

5 - 4

Rdown =(Voutset - Vref) x RLO

Voutnom - Vset

Rup =RHI - 1k

Voutset - Vnom

www.recom-power.com REV.: 0/2020 P-5

Evaluation Module

Speciﬁcations (measured @ Ta= 25°C, full load and after warm-up unless otherwise stated)

RPL-3.0-EVM-1

Layout

DIMENSION AND PHYSICAL CHARACTERISTICS

Parameter Type Value

Dimension (LxWxH) 85.0 x 55.0 x 6.5mm

Weight 21.2g typ.

Notes:

Note3: Visit www.recom-power.com/eval-ref-boards to download the Gerber ﬁles

Top Layer

Layer 3

Layer 2

Bottom Layer

continued on next page

BOM

Comp. Description Manufacturer Part Number Manufacturer Remarks

C1 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics not mounted

C2 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics

C3 100nF 25V X7R 0603 CL10B104KA8NNNC Samsung Electro-Mechanics

C4 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics

C5 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics

C6 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics

C7 22µF 16V X7R 1210 CL32B226KOJNNNE Samsung Electro-Mechanics

www.recom-power.com REV.: 0/2020 P-6

Evaluation Module

Speciﬁcations (measured @ Ta= 25°C, full load and after warm-up unless otherwise stated)

RPL-3.0-EVM-1

Comp. Description Manufacturer Part Number Manufacturer Remarks

C8 22µF 16V X7R 1210 CL32B226KOJNNNE Samsung Electro-Mechanics

C9 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics not mounted

C10 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics not mounted

C11 10µF 25V X7R 1206 CL31B106KAHNNNE Samsung Electro-Mechanics

C12 100pF 25V X7R 0603 CC0603KRX7R8BB101 Yageo

C13 1 µ F 16V X7R 0603 CL10B105KO8NFNC Samsung Electro-Mechanics

L1 FERRITE BEAD 2220 HI2220R301R-10 Laird not mounted

L2 FERRITE BEAD 1206 742792121 Würth not mounted

L3 FERRITE BEAD 74279252 74279252 Würth

L4 FERRITE BEAD 0805 742792040 Würth not mounted

L5 FERRITE BEAD 2220 HI2220R301R-10 Laird not mounted

L6 0R 1206 CRCW12060000Z0EAC Vishay

L7 0R 0805 RC0805JR-070RL Yageo not mounted

P1 CONNECTOR XW4K-04A1-H1 Omron Electronics INC not mounted

P2 CONNECTOR XW4K-04A1-H1 Omron Electronics INC not mounted

P3 CONNECTOR 2060-452_998-404 Wago

P4 CONNECTOR 2060-452_998-404 Wago

R1 0R 0.1W 0603 RC0603JR-070RL Yageo

R2 100K OHM 0.1W 1% 0603 RC0603FR-07100KL Yageo

R3 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

R4 1K OHM 0.1W 1% 0603 RC0603FR-071KL Yageo

R5 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

R6 47K OHM 0.1W 1% 0603 RC0603FR-0747KL Yageo

R7 1K OHM 0.1W 1% 0603 RC0603FR-071KL Yageo

R8 100K OHM 0.1W 1% 0603 RC0603FR-07100KL Yageo

R9 37K4 OHM 0.1W 1% 0603 RC0603FR-0737K4L Yageo

R10 15K OHM 0.1W 1% 0603 RC0603FR-0715KL Yageo

R11 8K87 0.1W 1% 0603 RC0603FR-078K87L Yageo

R12 0R 0.1W 0603 RC0603JR-070RL Yageo

R13 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

R14 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

R15 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

R16 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

R17 0R 0.1W 0603 RC0603JR-070RL Yageo not mounted

U1 RPL-3.0 RPL-3.0 RECOM

• RPX-1.0-EVM-1 Evaluation Module

• Terms and Conditions

Contents

PACKAGING INFORMATION

Parameter Type Value

Packaging Dimension (LxWxH) 114.0 x 60.0 x 28.0mm

Packaging Quantity 1pc