VRPA-06A1A0 - Bel Fuse Inc.

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

• Non-Isolated • Low Cost

• High Efficiency • OCP/SCP

• High Power Density • Remote On/Off

• Fixed Frequency (200 kHz) • Wide Trim Range

• Power Good Output Signal • Under Voltage Lockout (UVLO)

• Compact Footprint, Vertical and

Horizontal options

• Can Sink & Source Current

Description

The Bel xRPA-06A1A0 is a new high density open frame non-isolated converter series for space sensitive

applications. Each model has a wide input range (10.2 Vdc - 13.8 Vdc) and offers a wide output voltage range

(0.9 Vdc - 5.0 Vdc) with a 6 A load. An external resistor adjusts the output voltage from its pre-set value of 0.9

Vdc to any value up to the 5.0 Vdc maximum. Typical efficiency is 93% for 5.0 Vdc output at Vin=12 Vdc at full

load. Standard features include remote On/Off, over current protection, short current protection, wide input, and

programmable output voltage.

Part Selection

Output

Voltage Input Voltage Max. Output

Current Max. Output

Power Typical

Efficiency Model Number

Horizontal Mount Model Number

Vertical Mount

0.9 V - 5.0 V 10.2 V - 13.8 V 6 A 30 W 93% 0RPA-06A1A0 VRPA-06A1A0

Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging.

2. 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 - 13.8 V

Output Enable Terminal Voltage -0.3 V - 13.8 V

Ambient Temperature 0 °C - 80 °C

Storage Temperature -40 °C - 125 °C

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

Input Specifications

Parameter Min Typ Max Notes

Input Voltage 10.2 V - 13.8 V

Input Current (Source)

Vo=5.0 V

Vo=2.5 V

Vo=0.9 V

-

2.70 A

1.45 A

0.65 A

3.30 A

1.75 A

0.75 A

Input Current (Sink)

Vo=2.5 V

Vo=0.9 V

-

-1.07 A

-0.293 A

-

No Load Input Current

Vo=5.0 V

Vo=2.5 V

Vo=0.9 V

-

80 mA

50 mA

30 mA

-

xRPA-06A1A0 RoHS Com

p

liant Rev.B

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Input Specifications (Continued)

Parameter Min Typ Max Notes

Remote Off Input Current - 5 mA 10 mA

Input Reflected Ripple Current (pk-pk) - 100 mA -

Input Reflected Ripple Current (rms) - 20 mA -

Tested with 270 uF/16 V external Oscon

input capacitor & simulated source

impedance of 1.5 uH, 5 Hz to 20 MHz.

External Input Capacitance - 270 uF -

I2t Inrush Current Transient - - 0.01 A2s

Turn-on Voltage Threshold 8.7 V 9.0 V 9.3 V

Turn-off Voltage Threshold 7.0 V 7.5 V 8.0 V

Notes: 1. All specifications are typical at 25 °C unless otherwise stated.

2. Able to sink 6 A output current at any output voltage up to and including 2.5 V.

Output Specifications

Parameter Min Typ Max Notes

Output Voltage Set Point -2.5%Vo,set - 2.5%Vo,set Vin=12 V, full load

Output Voltage Set Point -3.5%Vo,set - 3.5%Vo,set

Over all operating input

voltages, resistive loads and

temperature conditions

Load Regulation - 0.25%Vo,set 0.5%Vo,set Io=Io, min to Io, max

Line Regulation - 0.1%Vo,set 0.2%Vo,set Vin=Vin, min to Vin, max

Output Current 0 A - 6 A

Current Limit Threshold 8 A - 15 A

Short Circuit Surge Transient - - 0.1 A2s

Ripple and Noise (pk-pk)

Vo=5.0 V

Vo=2.5 V

Vo=0.9 V

-

50 mV

40 mV

30 mV

-

Ripple and Noise (rms)

Vo=5.0 V

Vo=2.5 V

Vo=0.9 V

-

12 mV

10 mV

6mV

-

Tested with 0-20 MHz, with

external 680 uF/6.3 V Oscon

capacitor (ESR ≤ 12mohm), 10

uF/16 V tantalum capacitor and

10 nF ceramic capacitor at the

output.

Turn on Time - 7 mS 10 mS

Overshoot at Turn on - 0%Vo 3%Vo

External Load Capacitance

Vo=5.0 V

Vo=2.5 V

Vo=0.9 V

-

680 uF

3880 uF

5080 uF

6080 uF

Transient Response

50% ~ 75% Max Load - 75 mV -

Settling Time - 150 uS -

75% ~ 50% Max Load - 75 mV -

Settling Time

VO =5.0 V

- 150 uS -

50% ~ 75% Max Load - 50 mV -

Settling Time - 150 uS -

75% ~ 50% Max Load - 50 mV -

Settling Time

VO =2.5 V

- 150 uS -

50% ~ 75% Max Load - 40 mV -

Settling Time - 100 uS -

75% ~ 50% Max Load - 40 mV -

Settling Time

VO =0.9 V

- 100 uS -

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

external 680 uF/6.3 V Oscon

capacitor (ESR ≤ 12 mohm), 10

uF/16 V Tantalum capacitor and

10 nF ceramic capacitor at the

output.

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

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

General Specifications

Parameter Min Typ Max Notes

Efficiency (Source)

Vo=5.0 V

Vo=2.5 V

Vo=0.9 V

90%

85%

69%

93%

88%

71%

-

Efficiency (Sink)

Vo=2.5 V

Vo=0.9 V

82%

61%

85%

64%

-

Measured at Vin=12 V, full load

Switching Frequency 180 kHz 200 kHz 220 kHz

Output Voltage Trim Range 0.9 V - 5.0 V

MTBF 6,950,000 hours

Calculated Per Bell Core SR-332 (IO =

4.8 A; Ta = 25 °C)

Dimensions (Vertical Mount)

Inches (L × W × H)

Millimeters

(

L × W × H

)

1.2 x 0.61 x 0.35

30.48 x 15.49 x 8.89

Dimensions (Horizontal Mount)

Inches (L × W × H)

Millimeters

(

L × W × H

)

1.2 x 0.61 x 0.43

30.48 x 15.49 x 10.92

Weight - 6.0 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 - 0.8 V

Signal High (Unit On) 2.4 V - 13.8 V Remote On/Off pin open, Unit on.

Power Good

Power Good Delay - 5 mS 8 mS

Note: The power good signal is an open collector output. When the output of the modules is higher than 90% of

the nominal set point, the power good pin is set high.

Output Trim Equations

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

Trim resistor should be connected between the Trim pin and Ground and Rtrim values should not be less than

280 Ω.

9.0

17.1

−

=

adj

Trim V

R

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

)9.0(17.1 )17.13.1(

−×−

−×

=

adj

VRs VtRs

Rt

Rtrim

Module

Vout

GND

Trim

Vt

Module

Vout

GND

Trim

Rt

Rs

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Efficiency Data

0.9V Vout(SOURCE)

55.0%

60.0%

65.0%

70.0%

75.0%

80.0%

0.6 1.5 3.0 4.5 6.0

Output Current (A)

Efficienc

y

10.2V

12.0V

13.8V

0.9V Vout(SINK)

30.0%

40.0%

50.0%

60.0%

70.0%

0.6 1.5 3.0 4.5 6.0

Output Current (A)

Efficienc

y

10.2V

12.0V

13.8V

2.5V Vout(SOURCE)

73.0%

76.0%

79.0%

82.0%

85.0%

88.0%

91.0%

0.6 1.5 3.0 4.5 6.0

Output Current ( A)

Efficienc

y

10.2V

12.0V

13.8V

2.5V Vout(SINK)

65.0%

70.0%

75.0%

80.0%

85.0%

90.0%

0.6 1.5 3.0 4.5 6.0

Out put Current (A)

Efficienc

y

10.2V

12.0V

13.8V

5.0V Vout(SOURCE)

78.0%

81.0%

84.0%

87.0%

90.0%

93.0%

0.6 1.5 3.0 4.5 6.0

Output Current (A)

Efficienc

y

10.2V

12.0V

13.8V

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Thermal Derating Curves

Vin=12 V, Vo=0.9 V Vin=12 V, Vo=2.5 V

Vin=12 V, Vo=5.0 V

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Ripple and Noise Waveforms

Vo=5.0 V Vo=2.5 V

Vo=0.9 V

Note: Ripple and noise at full load, 12 V input, 0-20 MHz BW, 680 uF/6.3 V Oscon capacitor,

10 uF/16 V tantalum capacitor and 10 nF ceramic capacitor, and Ta=25 deg C.

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Transients Response Waveforms

75% to 50% load step at 5.0 Vdc output 50% to 75% load step at 5.0 Vdc output

75% to 50% load step at 2.5 Vdc output 50% to 75% load step at 2.5 Vdc output

75% to 50% load step at 0.9 Vdc output 50% to 75% load step at 0.9 Vdc output

Note: Transient response at 12 V input, di/dt=2.5 A/uS, with a 680 uF/6.3 V Oscon capacitor,

a 10 uF/16 V tantalum capacitor and a 10 nF ceramic capacitor at the output.

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

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Mechanical Outline

VRPA-06A1A0

Pin Connections

Pin Function

1 Vout

2 Trim

3 Ground

4 Power Good

5 Remote On/Off

6 Vin

7 Mechanical Support

8 Mechanical Support

9 N/A

©

2007 Bel Fuse Inc. Specifications subject to change without notice. 071807

CORPORATE FAR EAST EUROPE

Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd.

206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre

Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston

Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K.

Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601

www.belfuse.com Fax 852-2352-3706 Fax 44-1772-888366

www.belfuse.com www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input 0.9 Vdc - 5.0 Vdc/6 A Output

Mechanical Outline

0RPA-06A1A0

RoHS Compliance

Complies with the European Directive 2002/95/EC, calling for the elimination of lead and

other hazardous substances from electronic products.

Pin Connections

Pin Function

1 Vout

2 Trim

3 Ground

4 Power Good

5 Remote On/Off

6 Vin

7 Mechanical Support

8 Mechanical Support

9 Mechanical Support on

Horizontal Version Only