SRBA-06E2ALG Datasheet SRBA-06E2ALG, VRBA-06E2ALG, SRBA-06E2A0G | P1-P3

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

4.5 Vdc -14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output

• Non-Isolated • Under-voltage Lockout (UVLO)

• High Efficiency • Remote On/Off

• High Power Density • OCP/SCP

• Fixed Frequency • Wide Input

• Flexible Output Voltage Sequencing • Wide Trim Range

• UL60950-1 Recognized (UL/cUL)

Description

The Bel xRBA-06E2Ax modules are a series of non-isolated dc/dc converters that can deliver up to 6 A of output

current with full load efficiency of 92% at 5.0 Vdc output. These modules provide precisely regulated voltage

programmable via external resistor from 0.75 Vdc to 5.0 Vdc over a wide range of input voltage. These modules

have a sequencing feature that enables designers to implement various types of output voltage sequencing when

powering multiple voltages on a board. Their open-frame construction and small footprint enable designers to

develop cost and space-efficient solutions. Standard features include remote On/Off, programmable output

voltage and over current protection.

Part Selection

Output

Voltage

Input

Voltage

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Model Number

Surface Mount

Model Number

Vertical Mount

5.0 V 7.0 V - 14 V 6 A 30.0 W 92% SRBA-06E2Ax VRBA-06E2Ax

0.75 V - 3.3 V

4.5 V - 14 V 6 A 19.8 W 88% SRBA-06E2Ax VRBA-06E2Ax

Notes: 1. These modules use a buck topology, so the output voltages must be 0.5 V less than the input voltage.

2. Use “0” to replace “x” for remote on/off active high logic and use “L” for active low logic. Change the

last character “L” to “C” to indicate 0.20’’ pin length. Add “G” suffix at the end of the model numbers to

indicate Tray Packaging.

3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.

Absolute Maximum Ratings

Parameter Min Typ Max Notes

Input Voltage (continuous) -0.3 V - 15 V

Output Enable Terminal Voltage -0.3 V - 15 V

Sequencing Voltage

-0.3 V - Vin

Ambient Temperature

-40 °C

85 °C

Storage Temperature

-55 °C

125 °C

Notes: All specifications are typical at 25 °C unless otherwise stated.

1. xRBA-06E2Ax series of modules include a sequencing feature that enables users to implement various

types of output voltage sequencing in their applications. This is accomplished via an additional

sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin.

xRBA-06E2Ax Series RoHS Com

liant Rev.A

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

4.5 Vdc -14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output

Input Specifications

Parameter Min Typ Max Notes

Input Voltage

Vo, set≤3.3 V

Vo, set=5.0 V

4.5 V

7.0 V

12 V

14 V

Input Current (full load)

Vo=5.0 V

Vo=3.3 V

Vo=1.8 V

Vo=0.75 V

2.75 A

1.85 A

1.05 A

0.55 A

4.8 A

3.2 A

1.8 A

Input Current (no load)

Vo=5.0 V

Vo=0.75 V

100 mA

20 mA

Remote Off Input Current - 3 mA 5 mA

Input Reflected Ripple Current (pk-pk) - 120 mA 200 mA

Input Reflected Ripple Current (rms) - 60 mA 100 mA

With simulated source impedance of 1

uH, 5 Hz to 20 MHz and two 100 uF/25

V external input tantalum capacitors.

t Inrush Current Transient - 0.002 A

s0.02 A

Turn-on Voltage Threshold

Vo, set≤3.3 V

Vo, set=5.0 V

4.3 V

6.0 V

4.5 V

6.5 V

Turn-off Voltage Threshold

Vo, set≤3.3 V

Vo, set=5.0 V

4.0 V

5.5 V

4.3 V

6.0 V

Shut down or below 90% set point.

Output Specifications

Parameter Min Typ Max Notes

Output Voltage Set Point -2%Vo,set - 2%Vo,set Vin=12 V, full load

Output Voltage Set Point

-2.5%Vo,set - 3.5%Vo,set

Load Regulation -0.7%Vo,set 0.4%Vo,set 0.7%Vo,set Io=Io, min to Io, max

Line Regulation -0.7%Vo,set 0.3%Vo,set 0.7%Vo,set Vin=Vin, min to Vin, max

Regulation Over Temperature

(-40 °C to +85 °C)

- 0.5%Vo,set - Tref=Ta, min to Ta, max

Output Current 0 A - 6 A

Current Limit Threshold 6.8 A - 15 A

Short Circuit Surge Transient

- 0.25 A

s -

Ripple and Noise (pk-pk)

Vo=5.0 V

Vo=3.3 V

Vo=0.75 V

100 mV

80 mV

35 mV

140 mV

120 mV

7 0 mV

Ripple and Noise (rms)

Vo=5.0 V

Vo=3.3 V

Vo=0.75 V

35 mV

25 mV

10 mV

50 mV

40 mV

15 mV

Tested with 0-20 MHz, with

10 uF/10 V tantalum

capacitor & 1 uF/10 V

ceramic capacitor at the

output

Turn on Time - 6 mS 12 mS

Overshoot at Turn on - 0% 3%

Output Capacitance

ESR ≥ 1mohm

ESR ≥ 10mohm

0 uF

1000 uF

2200 uF

Transient Response

50% ~ 100% Max Load - 200 mV 350 mV

Settling Time - 25 uS 50 uS

100% ~ 50% Max Load - 200 mV 350 mV

Settling Time

All outputs

- 25 uS 50 uS

di/dt=2.5 A/uS; Vin=12 V; and

with 10 uF/10 V tantalum

capacitor & 1uF/10 V ceramic

capacitor at the output.

Notes: All specifications are typical at nominal input (Vin=12 V), full load at 25 °C unless otherwise stated.

1. Over all operating input voltages, resistive loads and temperature conditions.

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

4.5 Vdc -14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output

General Specifications

Parameter Min Typ Max Notes

Efficiency

Vo=5.0 V

Vo=3.3 V

Vo=1.8 V

Vo=0.75 V

88%

85%

80%

68%

92%

88%

84%

73%

Measured at Vin=12 V, full load

Switching Frequency 220 kHz 250 kHz 280 kHz

Output Voltage Trim Range (wide trim) 0.7525 V - 5 V

MTBF 3,079,469 hours

Calculated Per Bell Core SR-332

(Vin=12 V; Vo=3.3 V, I

O=4.8 V; Ta =

25 °C)

Dimensions

Inches (L × W × H)

Millimeters

(

L × W × H

)

0.8 x 0.45 x 0.251

20.32 x 11.42 x 6.38

Surface Mount

Dimensions

Inches (L × W × H)

Millimeters

(

L × W × H

)

1.0 x 0.5 x 0.243

25.4 x 12.7 x 6.16

Vertical Mount

Weight - 5 g -

Note: All specifications are typical at 25 °C unless otherwise stated.

Control Specifications

Parameter Min Typ Max Notes

Remote On/Off

Signal Low (Unit Off) -0.3 V - 0.4 V

Signal High (Unit On) 2.5 V - 14 V

xRBA-06E2A0; Remote On/Off pin open, Unit

on.

Signal Low (Unit On) -0.3 V - 0.4 V

Signal High (Unit Off) 2.5 V - 14 V

xRBA-06E2AL; Remote On/Off pin open, Unit

on.

Voltage Sequencing

Sequencing Voltage 0.05 V - Vin

Sequencing Voltage should be higher than

output voltage.

Sequencing Slew Rate Capability - - 2 V/mS

Sequencing Delay Time 10 mS - -

Delay from Vin, min to application of voltage

on SEQ pin

Tracking Accuracy

Power-Up

Power-Down

100 mV

200 mV

400 mV

Output Trim Equations

Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The

Trim Up resistor should be connected between the Trim pin and Ground.

7525.0

507.10

−

adj

trim

Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The

Trim Up voltage should be connected between the Trim pin and Ground.

)7525.0(0667.07.0

−

×−=

adjtrim

Rtrim

Module

Vout

GND

Trim

Vtrim

Module

Vout

GND

Trim

P1-P3 P4-P6 P7-P9

SRBA-06E2ALG

Mfr. #:

Buy SRBA-06E2ALG

Manufacturer:

Bel

Description:

Non-Isolated DC/DC Converters

Lifecycle:

New from this manufacturer.

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SRBA-06E2ALG

SRBA-06E2ALG

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