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
8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.5 Vdc/6 A Output
Input Specifications
Parameter Min Typ Max Notes
Input Voltage 8.3 V 12 V 14 V
Input Current (full load)
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.2 V
Vo=0.75 V
-
-
-
-
-
-
2.75 A
1.85 A
1.45 A
1.05 A
0.75 A
0.55 A
4.0 A
2.8 A
2.2 A
1.6 A
1.1 A
0.8 A
Input Current (no load)
Vo=5.0 V
Vo=0.75 V
-
-
-
-
100 mA
20 mA
Remote Off Input Current - 1 mA 2 mA
Input Reflected Ripple Current
(pk-pk)
- 120 mA -
Input Reflected Ripple Current
(rms)
- 40 mA -
Tested with two 100 uF/25 V tan
input capacitors & simulated source
impedance of 1 uH, 5 Hz to 20 MHz.
I
2
t Inrush Current Transient - 0.002 A
2
s 0.02 A
2
s
Turn-on Voltage Threshold - 8.1 V 8.2 V
Turn-off Voltage Threshold - 7.5 V 8.0 V
Notes: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter Min Typ Max Notes
Output Voltage Set Point -2%Vo,set - 2%Vo,set Vin=12 V, full load
Output Voltage Set Point -2.5%Vo,set - 3.5%Vo,set
Over all operating input
voltages, resistive loads and
temperature conditions
Adjustment Range Selected by
External Resistor or Voltage
0.7525 V - 5.5 V
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 - 6 A
Current Limit Threshold 7.2 A - 18 A
Short Circuit Surge Transient
- 0.25 A
2
s -
Ripple and Noise (pk-pk)
Vo=0.75 V-3.63 V
-
50 mV
75 mV
Ripple and Noise (rms)
Vo=0.75 V-3.63 V
-
15 mV
30 mV
Ripple and Noise (pk-pk)
Vo=5.0 V
-
75 mV
100 mV
Ripple and Noise (rms)
Vo=5.0 V
-
30 mV
40 mV
Tested with 0-20 MHz, with
10 uF/10 V tantalum
capacitor & 1 uF/10 V TDK
ceramic capacitor at the
output.
Turn on Time - 8 mS 10 mS
Overshoot at Turn on - 0% 3%
Output Capacitance
ESR ≥ 1 mohm
ESR ≥ 10 mohm
0 uF
0 uF
-
-
1000 uF
3000 uF
