VRBC-16F2AX [BEL]

NON-ISOLATED DC/DC CONVERTERS 2.4 V-5.5 V Input 0.75 V-3.63 V/16 A Output; 非隔离式DC / DC转换器2.4 V - 5.5 V输入0.75 V ， 3.63 V / 16 A输出


型号：	VRBC-16F2AX
厂家：	BEL FUSE INC.
描述：	NON-ISOLATED DC/DC CONVERTERS 2.4 V-5.5 V Input 0.75 V-3.63 V/16 A Output 非隔离式DC / DC转换器2.4 V - 5.5 V输入0.75 V ， 3.63 V / 16 A输出转换器
文件：	总6页 (文件大小：174K)
中文：	中文翻译
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NON-ISOLATED DC/DC CONVERTERS

2.4 V-5.5 V Input

0.75 V-3.63 V/16 A Output

VRBC-16F2Ax Series

RoHS Compliant

•

Non-Isolated

•

Under-voltage Lockout (UVLO)

Over Temperature Protection

Remote Sense

High Efficiency

High Power Density

OCP/SCP

Wide Input

Fixed Frequency (300 kHz)

Wide Trim

Flexible Output Voltage

Sequencing

Converter can sink and source

Current

•

Remote On/Off

•

Active Low/High (option)

Description

The Bel VRBC-16F2Ax modules are a series of non-isolated dc/dc converters that can deliver up to 16 A of

output current with full load efficiency of 94% at 3.3 V output. These modules provide precisely regulated

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

5.5 V). 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

Max.

Output

Current

Max.

Output

Power

Model

Number

Active Low

Model

Number

Active High

Model

Number

Active Low

Output

Voltage

Input

Voltage

Typical

Efficiency

0.75 V-3.63 V¹2.4 V-5.5 V

16 A

58.1 W

94%

VRBC-16F2AL VRBC-16F2A0

VRBC-16F2AW²

Notes: 1. These modules use a buck topology, so the output voltages must be 0.8 V less than the input voltage.

2. “W” indicates special coating.

3. Add “G” to the end of the Model Number to indicate Tray Packaging.

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

5.8 V

Vin

Ambient Temperature

85 °C

125 °C

Storage Temperature

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

1. VRBC-16F2Ax 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.

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 V-5.5 V Input

0.75 V-3.63 V/16 A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Vo, set ≤ Vin-0.8 V

Input Voltage

2.4 V

5.5 V

Input Current (full load)

Vo=3.3 V

Vo=1.8 V

Vo=0.75 V

11.23 A

6.47 A

3.08 A

12.89 A

13.55 A

6.67 A

Input Current (no load)

80 mA

10 mA

Remote Off Input Current

22 mA

Tested with two 100 uF/10 V tantalum

input capacitors (P/N:

Input Reflected Ripple Current (pk-pk)

100 mA

TPSC107K010R0075 AVX) & simulated

source impedance of 1 uH, 5 Hz to

20 MHz.

Input Reflected Ripple Current (rms)

I²t Inrush Current Transient

40 mA

0.15 A²s

0.3 A²s

Turn-on Voltage Threshold

Turn-off Voltage Threshold

2.2 V

2.0 V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2%Vo,set

2%Vo,set

Vin=5 V, lo=lomax full load

Over all operating input

voltages, resistive loads and

temperature conditions

Output Voltage Set Point

-3%Vo,set

3%Vo,set

Load Regulation

0.4%Vo,set

0.3%Vo,set

Io=Io, min to Io, max

Line Regulation

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

16 A

35 A

Current Limit Threshold

19 A

Short Circuit Surge Transient

1.6 A²s

2 A²s

Tested with 0-20 MHz,

10 uF/16 V tantalum capacitor

& 1 uF/10 V TDK ceramic

capacitor at output

Ripple and Noise (pk-pk)

25 mV

50 mV

Ripple and Noise (rms)

Turn on Time

8 mV

15 mV

4 mS

8 mS

Overshoot at Turn on

Output Capacitance

ESR ≥ 1mohm

0%Vo,set

3%Vo,set

0 uF

1000 uF

5000 uF

ESR ≥ 10mohm

Transient Response ¹

50% ~ 100% Max Load

300 mV

50 uS

300 mV

50 uS

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

with 10 uF/16 V tantalum

capacitor & 1 uF/10 V ceramic

capacitor at output

Settling Time

100% ~ 50% Max Load

Settling Time

Transient Response ²

VO=0.75 V -

3.3 V

50% ~ 100% Max Load

Settling Time

100% ~ 50% Max Load

Settling Time

150 mV

100 uS

150 mV

100 uS

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

with two 150 uF/10 V tantalum

capacitors & 1 uF/10 V ceramic

capacitor at output

VO=0.75 V -

3.3 V

Note: All specifications are typical at nominal input (Vin=5 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

2.4 V-5.5 V Input

0.75 V-3.63 V/16 A Output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

Vo=3.3 V

Vo=1.8 V

Vo=0.75 V

91%

86%

75%

94%

89%

78%

Measured at Vin=5 V, full load

Switching Frequency

250 kHz

300 kHz

350 kHz

Over Temperature Shutdown

Output Trim Range (Wide Trim)

Remote Sense Compensation

125 °C

0.7525 V

3.63 V

Calculated Per Bell Core SR-332 (IO =

Nominal; Ta = 25 °C)

MTBF

5,109,613 hours

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

2.0 x 0.5 x 0.363

50.80 x 12.7 x 9.23

8.3 g

Weight

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

Control Specifications

Parameter

Signal Low (Unit Off)

Signal High (Unit On)

Signal Low (Unit On)

Signal High (Unit Off)

Min

Typ

Max

0.3 V

5.8 V

0.3 V

5.8 V

Notes

-0.3 V

1.5 V

-0.3 V

1.5 V

VRBC-16F2A0; Remote On/Off pin

open, Unit on.

VRBC-16F2AL & VRBC-16F2AW;

Remote On/Off pin open, Unit on.

Sequencing Voltage should be higher

than output voltage.

Sequencing Voltage

0.05 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 V-5.5 V Input

0.75 V-3.63 V/16 A Output

Efficiency Data

98.0%

96.0%

94.0%

92.0%

90.0%

88.0%

86.0%

84.0%

82.0%

80.0%

4.5V

5.0V

5.5V

1.6

4.0

8.0

12.0

16.0

Vo=3.3 V

100.0%

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

3.0V

5.0V

5.5V

1.6

4.0

8.0

12.0

16.0

Vo=1.8 V

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

2.4V

5.0V

5.5V

1.6

4.0

8.0

12.0

16.0

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 V-5.5 V Input

0.75 V-3.63 V/16 A Output

Thermal Derating Curves

Vo=3.3 V

Vo=1.8 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 V-5.5 V Input

0.75 V-3.63 V/16 A Output

Mechanical Outline

Pin Connections

Function

Vout

Vo,sense

Vout

Ground

Vin

SEQ

Trim

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

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