VRBA-06F2AX_07 [BEL]

NON-ISOLATED DC/DC CONVERTERS;


型号：	VRBA-06F2AX_07
厂家：	BEL FUSE INC.
描述：	NON-ISOLATED DC/DC CONVERTERS
文件：	总9页 (文件大小：357K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

NON-ISOLATED DC/DC CONVERTERS

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

VRBA-06F2Ax

RoHS Compliant

Rev.A

•

Non-Isolated

•

Under-voltage Lockout (UVLO)

Wide Trim

•

High Efficiency

High Power Density

OCP/SCP

Fixed Frequency (300 kHz)

Flexible Output Voltage

Sequencing

•

Remote On/Off

Active Low/High (option)

Able to Sink & Source Current

Description

The Bel VRBA-06F2Ax modules are a series of non-isolated dc/dc converters that deliver up to 6 A of output

current with full load efficiency of 93% at 3.3 Vdc output. These modules provide precisely regulated voltage

programmable via external resistor from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (2.4 Vdc - 5.5

Vdc). These modules have a sequencing feature that enables designers to implement various types of output

voltage sequencing when powering multiple voltages on a board. The open-frame construction and small

footprint enable designers to develop cost and space-efficient solutions. Standard features include remote

On/Off, over current protection, short circuit protection, wide input, and programmable output voltage.

Part Selection

Output

Input

Voltage

Max. Output Max. Output

Typical

Efficiency

Model Number

Active Low

Model Number

Active High

Voltage

Current

Power

0.75 V -3.63 V¹

2.4 V - 5.5 V

6 A

21.8 W

93%

VRBA-06F2AL

VRBA-06F2A0

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

2. Add “G” suffix at the end of the model number 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

5.8 V

Output Enable Terminal Voltage

Sequencing Voltage ¹

-0.3 V

-40 °C

-55 °C

5.5 V

Vin

Ambient Temperature

85 °C

125 °C

Storage Temperature

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

1. VRBA-06F2Ax 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 not used sequencing feature, tie the SEQ pin to Vin or leave the SEQ pin floating.

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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

Vo≤ 1.5 V

Vo=1.8 V

2.5 V≤Vo ≤3.3 V

2.4 V

3.0 V

4.5 V

5.5 V

Input Current (full load)

Vo=3.3 V

Vo=2.5 V

Vo=1.8 V

Vo=1.5 V

Vo=1.2 V

Vo=0.75 V

4.73 A

3.66 A

4.09 A

4.31 A

3.57 A

2.40 A

Input Current (no load)

Vo=3.3 V

Vo=0.75 V

50 mA

25 mA

Remote Off Input Current

0.6 mA

Tested with simulated source impedance of 1

uH, 5 Hz to 20 MHz, one 1000 uF/25 V AL

capacitor and two 100 uF/ 10 V Tantalum

capacitor at the input.

Input Reflected Ripple Current (pk-pk)

120 mA

Input Reflected Ripple Current (rms)

I²t Inrush Current Transient

35 mA

0.04 A²s

Turn-on Voltage Threshold

Turn-off Voltage Threshold

2.05 V

2.0 V

2.4 V

1.8 V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2% Vo,set

2% Vo,set

Vin=5 V, 50% full load

Over all operating input voltages, resistive

loads and temperature conditions

Output Voltage Set Point

-3% Vo,set

3% Vo,set

3.63 V

Adjustment Range Selected by

External Resistor or Voltage

0.7525 V

Load Regulation

0.4% Vo,set

0.3% Vo,set

Io=Iomin to 50%Iomax to 100%Iomax

Line Regulation

Vin=Vinmin to 50%Vinmax to 100%Vinmax

Regulation Over Temperature

(-40 °C to +85 °C)

Output Current

0.4% Vo,set

Tref=Tamin to Tamax

0 A

9 A

6 A

Current Limit Threshold

18 A

Short Circuit Surge Transient

0.32 A²s

Tested with 0-20 MHz, with 10 uF

Tantalum capacitor & 1 uF/10 V ceramic

capacitor at the output.

Ripple and Noise (pk-pk)

40 mV

70 mV

Ripple and Noise (rms)

Turn on Time

10 mV

30 mV

6 mS

10 mS

Overshoot at Turn on

Output Capacitance

Min ESR ≥ 1mohm

Max ESR ≥ 10mohm

Transient Response

50% ~ 100% Max Load

Settling Time

100% ~ 50% Max Load

Settling Time

0 uF

1000 uF

3000 uF

130 mV

di/dt=2.5 A/uS; Vin=5 V; and with 10

uF Tantalum capacitor & 1 uF/10 V

TDK ceramic capacitor at the output

25 uS

130 mV

25 uS

VO = 0.75 V -

3.63 V

Note: All specifications are typical at nominal input, 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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

Vo=3.3 V

Vo=2.5 V

93%

91%

Vo=1.8 V

88%

Measured at Vin=5 V, full load

Vo=1.5 V

87%

Vo=1.2 V

84%

Vo=0.75 V

78%

Switching Frequency

Over Temperature Shutdown

Output Voltage Trim Range

250 kHz

0.7525 V

300 kHz

135 °C

350 kHz

3.63 V

Calculated Per Bell Core SR-332 (Vin=5 V;

Vo=0.75 V; IO = 4.8 A; Ta = 25°C)

MTBF

7,142,646 hours

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

Weight

1.0 x 0.5 x 0.243

25.4 x 12.7 x 6.16

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)

Signal High (Unit On)

Signal Low (Unit On)

Signal High (Unit Off)

-0.2 V

1.5 V

0.3 V

Vin, max

0.3 V

VRBA-06F2A0; Remote On/Off pin open, Unit

on.

VRBA-06F2AL; Remote On/Off pin open, Unit

on.

Vin, max

Sequencing Voltage applied on SEQ pin

should be higher than output voltage.

Sequencing Voltage

0 V

Vin

2 V/mS

Sequencing Slew Rate Capability

Sequencing Delay Time

Delay from Vin, min to application of voltage

on SEQ pin

10 mS

Tracking Accuracy

Power-Up

100 mV

200 mV

400 mV

Power-Down

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.

Vout

21.07

R_trim

− 5.11

Module^Trim

Rtrim

V_adj− 0.7525

GND

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.

Vout

V_trim= 0.7 − 0.1698×(V_adj− 0.7525)

Module

Trim

Vtrim

GND

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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Efficiency Data

Efficiency Curve

100.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

4.5 V

5.0 V

5.5 V

4.5 V

5.0 V

0.6

1.5

3.0

4.5

6.0

0.6

1.5

3.0

4.5

6.0

Output Current (A)

Vo=3.3 V

Vo=2.5 V

Efficiency Curve

100.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

100.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

3.0 V

5.0 V

5.5 V

2.4 V

5.0 V

5.5 V

0.6

1.5

3.0

0.6

1.5

3.0

4.5

6.0

Output Current (A)

Vo=1.8 V

Vo=1.5 V

Efficiency Curve

100.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

100.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

2.4 V

5.0 V

5.5 V

2.4 V

5.0 V

5.5 V

0.6

1.5

3.0

0.6

1.5

3.0

4.5

6.0

Output Current (A)

Vo=1.2 V

Vo=0.7525 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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Thermal Derating Curves

Vin=5 V, Vo = 3.3 V

Vin=5 V, Vo = 0.75 V

Vin=4.5 V, Vo = 2.5 V

Vin=3.3 V, Vo = 0.75 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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Ripple and Noise Waveforms

Ripple and noise at full load, Vin=5.0 V, Vo=0.7525 V

Ripple and noise at full load, Vin=5.0 V, Vo=1.2 V

Ripple and noise at full load, Vin=5.0 V, Vo=1.8 V

Ripple and noise at full load, Vin=5.0 V, Vo=3.3 V

Ripple and noise at full load, Vin=5.0 V, Vo=1.5 V

Ripple and noise at full load, Vin=5.0 V, Vo=2.5 V

Note: Ripple and noise is tested at 0-20 MHz BW, 10 uF/10 V tantalum capacitor and 1 uF/10 V ceramic

capacitor, 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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Transient Response Waveforms

50% to 100% load step at Vin=5 V, Vo=0.75 V

50% to 100% load step at Vin=5 V, Vo=1.2 V

50% to 100% load step at Vin=5 V, Vo=1.5 V

100% to 50% load step at Vin=5 V, Vo=0.75 V

100% to 50% load step at Vin=5 V, Vo=1.2 V

100% to 50% load step at Vin=5 V, Vo=1.5 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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Transient Response Waveforms (continued)

50% to 100% load step at Vin=5 V, Vo=1.8 V

50% to 100% load step at Vin=5 V, Vo=2.5 V

100% to 50% load step at Vin=5 V, Vo=1.8 V

100% to 50% load step at Vin=5 V, Vo=2.5 V

50% to 100% load step at Vin=5 V, Vo=3.3 V

100% to 50% load step at Vin=5 V, Vo=3.3 V

Note: Transient response is tested at di/dt=2.5 A/uS, with 10 uF/10 V tantalum capacitor and 1 uF/10 V ceramic

capacitor, 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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Mechanical Outline

Pin Connections

Function

Vout

Trim

Ground

SEQ

Vin

Remote On/Off

RoHS Compliance

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

other hazardous substances from electronic products.

CORPORATE

FAR EAST

EUROPE

Bel Fuse Inc.

Bel Fuse Ltd.

Bel Fuse Europe Ltd.

206 Van Vorst Street

Jersey City, NJ 07302

Tel 201-432-0463

Fax 201-432-9542

www.belfuse.com

8F/ 8 Luk Hop Street

San Po Kong

Kowloon, Hong Kong

Tel 852-2328-5515

Fax 852-2352-3706

www.belfuse.com

Preston Technology Management Centre

Marsh Lane, Suite G7, Preston

Lancashire, PR1 8UD, U.K.

Tel 44-1772-556601

Fax 44-1772-888366

www.belfuse.com

VRBA-06F2AX_07 [BEL]

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