
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/16 A Output 
General Specifications 
Parameter 
Efficiency
Min 
91% 
86% 
75% 
250 kHz 
- 
0.7525 V 
- 
Typ 
94% 
89% 
78% 
300 kHz 
125 
°
C 
- 
- 
Max 
- 
- 
- 
350 kHz 
- 
3.63 V 
5% 
Notes 
Vo=3.3 V 
Vo=1.8 V 
Vo=0.75 V 
Measured at Vin=5 V, full load 
Switching Frequency 
Over Temperature Shutdown 
Output Trim Range (Wide Trim) 
Remote Sense Compensation 
Calculated Per Bell Core SR-332 (I
O
 = 
Nominal; T
a
 = 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 
-0.3 V 
1.5 V 
-0.3 V 
1.5 V 
Typ 
- 
- 
- 
- 
Max 
0.3 V 
5.8 V 
0.3 V 
5.8 V 
Notes 
VRBC-16F2A0; Remote On/Off pin 
open, Unit on. 
VRBC-16F2AL; Remote On/Off pin 
open, Unit on. 
Sequencing Voltage should be higher 
than output voltage. 
Delay from Vinmin to application of 
voltage on SEQ pin 
Sequencing Voltage 
0.05 V 
- 
Vin 
Sequencing Slew Rate Capability 
- 
- 
2 V/mS 
Sequencing Delay Time 
10 mS 
- 
- 
Tracking Accuracy 
Power-Up 
Power-Down 
- 
- 
100 mV 
200 mV
200 mV 
400 mV
Output Trim Equations 
Equation for calculating the trim resistor (in k
) given the desired adjusted voltage (Vadj) is shown below. The 
Trim Up resistor should be connected between the Trim pin and Ground. 
07
.
21
adj
V
11
.
7525
.
=
trim
R
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. 
(
1698
.
7
×
=
adj
trim
V
V
)
7525
.
Rtrim
Module
Vout
GND
Trim
Vtrim
Module
Vout
GND
Trim