www.recom-power.com REV.: 1/2019 P-1
RBB10-2.0-EVM-1
Evaluation Module
Features
Evaluation
Module
• Evaluation platform for RBB10 buck/boost regulators
• Input voltage can be lower, higher or the same
as output voltage
• Class B EMC filter layout
• Built-in thermal management
• Easy evaluation of modes, trimming, enable and
sensing fufnction of the RBB10 modules
Description
The RBB10-2.0-EVM-1 evaluation board generates a regulated output voltage with a current up to
4A from an external DC supply which can be higher, lower or the same as the set output voltage.
The output voltage is preset to 3.3V or 5V but can be adjusted between 1.0V and 5.5V using on-board
resistors. All of the functions of the RBB10-2.0 regulator such as the different operating modes, output
trim, enable, and the sense input can be easily evaluated using the break out connectors.
Typical applications that can be evaluated include:
USB voltage converter/regenerator: 3.3V or 5V output from a 3.3V (+60%/-30%) or from a
5V (+10%/-50%) supply. A stable output voltage can be regenerated even if the input voltage is outside
of the USB voltage specification.
With a regulated supply voltage, the following continuous output current limits apply:
Selection Guide
Part Input Output Output
Number Voltage Range Voltage Current
[VDC] [VDC] [A]
RBB10-2.0-EVM-1 2.3 - 5.5 1.0 - 5.5 2.0
(5VDC preset) (4.0 buck mode)
Caution:
ESD sensitive. Always follow ESD preventative procedures when
handling the product!
Battery stabiliser: the output can be set to deliver a stable 5V or 3.3V from a nominal 3V, 3.7V or
4.2V Lithium Ion or 3V/4.5V alkaline battery pack. In standby, the board consumes only 5µA.
Supercapacitor booster: the output can be set to deliver a stable 5V or 3.3V from a single
supercapacitor (2.3V – 2.7V) or from two supercapacitors wired in series (2.3V – 5.4V).
Low voltage regulator with sense: 1V, 1.2V, 1.8V or 2.5V output with up to 4A current.
nom. Input
Voltage (1)
Output
Voltage
Output
Current
3.3V 1.8V 4A max
3.3V 3.3V 2.8A max
3.3V 5V 2.2A max
5V 1.8V 4A max
5V 3.3V 4A max
5V 5V 3.2A max
Notes:
Note1: For detail information please refer to “Safe Operating Area” graph on page P-2
www.recom-power.com REV.: 1/2019 P-2
Evaluation Module
Specifications (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
RBB10-2.0-EVM-1
Quick Start Guide
1) Connect Sense to the required potential.
The Sense input is via R3 directly at the power module output. To compensate for ohmic losses of the filter, desolder the R3 resistor
and move it to the position of R4.
If you want to sense directly on the load, desolder R3 and connect the middle pin of Con 2 to the positive potential of the load with a
separate connection.
2) If a different output voltage is required, fit R5 or R6.
3) Connect Con1 to a DC power supply and check output voltage.
4) Connect Con2 to the load.
5) Enable the device on Con3.
The converter is normally on. You can disable the converter by pulling the Enable pin to GND with a switch, open collector driver or logic
input. R1 or R2 can be used to change the default function from normally on to normally off.
6) Modes:
The RBB10-2.0 has the possibility to work in two regulation modes:
6.1) Powersave Mode (standard)
This mode is the best for use at low loads to reduce power consumption and extend battery life. In this mode the internal power
consumption is reduced by using burst mode for loads under 350mA and PWM for loads above 350mA. The drawback is a 1-3 %
higher output voltage at low load than full load.
6.2) Fixed PWM mode
In PWM mode the device accurately regulates the output voltage independently of the load current. The drawback is a higher
internal power consumption and shorter battery life at lower loads. Pull down the Mode pin on Con4 to GND or solder a 0Ω
resistor a position R7 to enter this mode.
4.5
4.0
3.0
2.0
3.5
2.5
1.5
1.0
0.5
0
Output Current [A]
Input Voltage [VDC]
2.3 2.7 3.1
3.3 3.6 5.0
3.5 3.9 4.3 4.7 5.1 5.5
5.5Vout
5.0Vout
3.3Vout
1.0Vout
Safe Operating Area
www.recom-power.com REV.: 1/2019 P-3
Evaluation Module
Specifications (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
RBB10-2.0-EVM-1
Pin Name Description
1,2 Vin Positive Input Voltage (observe correct polarity!)
3 NC Not connected
4,5 GND Negative Input Voltage (Common GND )
Pin Name Description
1 ON Connect to Vin
2 EN Enable Pin (leae open if not used)
3 OFF Connected to GND
Pin Name Description
1,2 Vout Positive Output Voltage
3 SENSE Output Voltage Sense Pin (leave open if not used)
4,5 GND Negative Output Voltage (Common GND )
Pin Name Description
1 PG Not used
2 SEQ Not used
3 MODE Regulation mode (leave open if not used)
4 VSEL Not used
Connector Description
Con1
Con3
Con2
Con4
Component Placement
CON1
L2
L1
L6
R6
C7
R1
C3
C2
R5
R7
IC1
L3
C1
C4
CON2
C6
CON4
C5
C9
R2
L8
R8
R4
R3
CON3
L7
L5
C8 L4
PG
VOUT
SEQ
RECOM 12.2x12.2mm Evaluation Board
version 03
VSEL
OFFON
SENSE
GND
EN
VIN
1
2
3
4
5
1
2
3
4
5
MODE
GND
www.recom-power.com REV.: 1/2019 P-4
Evaluation Module
Specifications (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
RBB10-2.0-EVM-1
vi
1
2
C9
1206
1
2
L5 0805
1
2
L7
1
2
C5
1206
1 2
R7
0603
1 2
R4
0603
2
CON1-B
4
CON1-D
3
CON3-C
3
CON4-C
12
vsel
R8
0E0
0603
100mW
1
2
L2 0805
4
CON2-D
A1
A2
C1
E1
A3
A4
E2
B1
E5
D1
C5
B5
A5
TRIM
GND2
GND
GND3
V
OUT
V
IN
EN
SENSE
NC
NC
MODE
IC1-A
E4
IC1-M
1
CON4-A
3
sense
CON2-C
1
2
L1 0603
1
2
vin
L3 1206
1
2
L4 0603
1
2
vout
L6 1206
4
CON4-D
1
2
C1
1206
1 2
R6 0603
1
2
C3
1206
1 2
R2
0603
1
2
C8
1206
5
CON1-E
1 2
R3
0603
5
CON2-E
2
CON4-B
1
2
C2
1210
1
2
vo
C4
1210
1
2
L8
2
CON2-B
1
2
C6
1206
1
2
C7
1206
1 2
R1
0603
2
en
CON3-B
1
CON1-A
12
R5
0603
1
CON3-A
1
CON2-A
V
OUT
VSEL
GND
PG
EN
V
IN
GND
SEQ
SENSE
MODE
Schematic
Description
IC1 is the RBB10-2.0 power module.
C1,C2,L1,L2,L3,L7,C5,C6 give the possibility to try different input EMC filters. The populated filter is designed to meet EN55032 class B has
C1, L7 and C6 fitted.
C7,C8,L4,L5,L6,L8,C3,C4 give the possibility to try different output EMC filters. The populated filter is designed to meet EN55032 class B has
L8 and C3 fitted.
R1 and R2 give the possibility to preset the Enable pin in other configurations.
These resistors are not populated. The default for IC1 is always on.
If R2 is fitted, then the enable is normally on, pull down to ground to turn off. If R1 is fitted, the enable is normally off, pull up to Vin to turn on.
Refer to the datasheet of IC1 for more information.
C9 is not populated on this board.
R3 is a populated 0Ω resistor for output voltage sensing directly at the module output. If the output sense input is required at the point of load,
unsolder R3 and connect the Sense pin to the load.
R4 gives the possibility to compensate the output voltage for any voltage drop through the EMC filter by unsoldering R3 and soldering it at the
position of R4.
R7 and R8 are not populated on this Board.
R5 and R6 give the possibility to trim the output voltage between 1.0V and 5.5V (see calculations and trim table below). Fit only R5 or R6.
www.recom-power.com REV.: 1/2019 P-5
Evaluation Module
Specifications (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
RBB10-2.0-EVM-1
OUTPUT VOLTAGE TRIMMING
The RBB10-2.0 series offers the feature of trimming the output voltage over a range between 1.0V and 5.5V by using external trim resistors.
The values for trim resistors shown in trim tables below are according to standard E96 values; therefore, the specified voltage may slightly vary.
Rup
+Vout
Trim
Rdown
GND
Trim
Trim up Trim down
Voutnom R1R2R3Vref
5VDC 629kW1kW788kW0.805
Practical Example RBB10-2.0:
Calculation:
Voutnom = nominal output voltage [VDC]
Voutset = trimmed output voltage [VDC]
Vref = reference voltage [VDC]
Rup = trim up resistor [W]
Rdown = trim down resistor [W]
R1, R2, R3 = internal resistors [W]
Rup =629k - 1k =1M26W
5.5 - 5.0
Rup according to E96 ≈ 1M27WRdown according to E96 ≈ 2M55W
Rdown =(4.0 - 0.805) x 788k = 2M52W
5.0 - 4.0
Rdown =(Voutset - Vref) x R3
Voutnom - Voutset
Rup =R1 - R2
Voutset - Vnom
Voutset =5.1 5.2 5.3 5.4 5.5 [VDC]
Rup (E96) ≈6M34 3M16 2M10 1M58 1M27 [W]
RBB10-2.0
Trim up
Trim down
Voutset =4.5 4.0 3.5 3.3 3.0 2.5 2.0 1.8 1.5 1.0 [VDC]
Rdown (E96) ≈ 5M90 2M55 1M43 1M15 866k 536k 316k 243k 158k 38k3 [W]
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter Type Value
Dimension (LxWxH) 90.0 x 60.0 x 26.0mm
Weight 23.3g typ.
www.recom-power.com REV.: 1/2019 P-6
Evaluation Module
Specifications (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
RBB10-2.0-EVM-1
continued on next page
BOM
Comp. Description Manufacturer Part Number Manufacturer Remarks
C1 22µF 10V X7R 1206 CL31B226MPHNNNE Samsung
C2 10µF ±10% 63V X7R MLCC 1210 GRM32ER71J106KA12L Murata not mounted
C3 10µF 35V X7R 1206 GMK316AB7106KL-TR Taiyo Yuden
C4 10µF ±10% 63V X7R MLCC 1210 GRM32ER71J106KA12L Murata not mounted
C5 22µF 10V 1206 CL31B226MPHNNNE Samsung
C6 22µF 10V X7R 1206 CL31B226MPHNNNE Samsung
C7 10µF 35V X7R 1206 GMK316AB7106KL-TR Taiyo Yuden not mounted
C8 10µF 35V X7R 1206 GMK316AB7106KL-TR Taiyo Yuden not mounted
C9 CAP CER 100nF 50V X7R 1206 CL31B104KBCNNNC Samsung not mounted
CON1 RS Pro Header 2.54mm 5 W81105T3825RC RS
CON2 RS Pro Header 2.54mm 5 W81105T3825RC RS
CON3 RS Pro Header 2.54mm 3 W81103T3825RC RS
CON4 RS Pro Header 2.54mm 4 W81104T3825RC RS
L1 FERRITE BEAD 600 OHM 0603 1LN 742792651 Wurth not mounted
L2 FERRITE BEAD 330 OHM 0805 1LN FBMH2012HM331-T Taiyo Yuden not mounted
Layout
Notes:
Note2: Visit www.recom-power.com/eval-ref-boards to download the Gerber files
Top Layer Layer 2 (GND)
Bottom (GND)
Layer 3 (GND)
www.recom-power.com REV.: 1/2019 P-7
Evaluation Module
Specifications (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
RBB10-2.0-EVM-1
Comp. Description Manufacturer Part Number Manufacturer Remarks
L3 FERRITE BEAD 300 OHM 1206 1LN 74279215 Würth
L4 FERRITE BEAD 600 OHM 0603 1LN 742792651 Wurth not mounted
L5 FERRITE BEAD 330 OHM 0805 1LN FBMH2012HM331-T Taiyo Yuden not mounted
L6 FERRITE BEAD 300 OHM 1206 1LN 74279215 Würth
L7 FERRITE BEAD 98 OHM 2SMD 1LN 7427932 Würth not mounted
L8 FERRITE BEAD 98 OHM 2SMD 1LN 7427932 Würth not mounted
R1 RES SMD 1M OHM 1% 1/10W 0603 RC0603FR-071ML Yageo not mounted
R2 RES SMD 1M OHM 1% 1/10W 0603 RC0603FR-071ML Yageo not mounted
R3 RES SMD 0.0OHM JUMPER 1/10W 0603 RC0603JR-070RL Yageo
R4 RES SMD 0.0OHM JUMPER 1/10W 0603 RC0603JR-070RL Yageo not mounted
R5 RES SMD 1/10W 0603 not mounted
R6 RES SMD 1/10W 0603 not mounted
R7 RES SMD 0.0OHM JUMPER 1/10W 0603 RC0603JR-070RL Yageo not mounted
R8 RES SMD 0.0OHM JUMPER 1/10W 0603 RC0603JR-070RL Yageo not mounted
SP1-4 PCB Spacer 4mm
IC1 RBB10-2.0 Module RECOM
• RBB10-2.0-EVM-1 Evaluation Module PCB
• Terms and Conditions
Contents
The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The
products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or cause
loss of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized
use of RECOM products in such safety-critical applications.
PACKAGING INFORMATION
Parameter Type Value
Packaging Dimension (LxWxH) carton 200.0 x 135.0 x 68.0mm
Packaging Quantity 1pcs
