VRBC-16F2AX datasheet(2/6 Pages) BEL

2 / 6 page

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

Input Voltage

2.4 V

5.5 V

Vo, set

≤ Vin-0.8 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

Remote Off Input Current

10 mA

22 mA

Input Reflected Ripple Current (pk-pk)

100 mA

Input Reflected Ripple Current (rms)

40 mA

Tested with two 100 uF/10 V tantalum

input capacitors (P/N:

TPSC107K010R0075 AVX) & simulated

source impedance of 1 uH, 5 Hz to

20 MHz.

2t Inrush Current Transient

0.15 A

2s0.3 A2s

Turn-on Voltage Threshold

2.2 V

Turn-off Voltage Threshold

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

Output Voltage Set Point

-3%Vo,set

3%Vo,set

Over all operating input

voltages, resistive loads and

temperature conditions

Load Regulation

0.4%Vo,set

Io=Io, min to Io, max

Line Regulation

0.3%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

16 A

Current Limit Threshold

19 A

35 A

Short Circuit Surge Transient

1.6 A

2 A

Ripple and Noise (pk-pk)

25 mV

50 mV

Ripple and Noise (rms)

8 mV

15 mV

Tested with 0-20 MHz,

10 uF/16 V tantalum capacitor

& 1 uF/10 V TDK ceramic

capacitor at output

Turn on Time

4 mS

8 mS

Overshoot at Turn on

0%Vo,set

3%Vo,set

Output Capacitance

ESR

≥ 1mohm

ESR

≥ 10mohm

0 uF

1000 uF

5000 uF

Transient Response

50% ~ 100% Max Load

300 mV

Settling Time

50 uS

100% ~ 50% Max Load

300 mV

Settling Time

VO=0.75 V -

3.3 V

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

Transient Response

50% ~ 100% Max Load

150 mV

Settling Time

100 uS

100% ~ 50% Max Load

150 mV

Settling Time

VO=0.75 V -

3.3 V

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

Note

: All specifications are typical at nominal input (Vin=5 V), full load at 25 °C unless otherwise stated.

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