
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
3.0 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/6 A Output
Input Specifications (continued)
Parameter
Input Current (no load)
Min
-
-
-
Typ
100 mA
50 mA
10 mA
Max
-
-
-
Notes
Vo=3.3 V
Vo=0.75 V
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
-
120 mA
-
Input Reflected Ripple Current (rms)
-
35 mA
-
Tested with simulated source
impedance of 1uH, 5 Hz to 20 MHz.
I
2
t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
-
0.04 A
2
s
3.0 V
-
2.7 V
2.6 V
1.8 V
Note
: All specifications are typical at 25
°
C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
-
Max
Notes
-2%Vo,set
2%Vo,set
Vin=5 V, 50% full load
Over all operating input voltages,
resistive loads and temperature
conditions
Selected by external resistor or
voltage
Io=Iomin to 50% Iomax
Vin=Vinmin to Vinmax
Tref=Tamin to Tamax
Output Voltage Set Point
-3%Vo,set
-
3%Vo,set
Adjustment Range
0.7525 V
-
3.63 V
Load Regulation
Line Regulation
Temperature Regulation
Output Current
Current Limit Threshold
Short Circuit Surge Transient
-
-
-
0.4%Vo,set
0.3%Vo,set
0.4%Vo, set
-
-
0.32 A
2
s
-
-
-
0 A
9 A
-
6 A
18 A
-
Ripple and Noise (pk-pk)
-
40 mV
70 mV
Ripple and Noise (rms)
-
10 mV
30 mV
Tested with 0-20 MHz, with
external 10 uF Tantalum
capacitor and 1 uF/10 V TDK
ceramic capacitor at the output.
Turn on Time
Overshoot at Turn on
External Load Capacitance
-
-
6 mS
-
10 mS
3%Vo
1000 uF
3000 uF
Min ESR
≥
1mhom
Max ESR
≥
10mhom
0 uF
0 uF
Transient Response
50% ~ 100% Max Load
-
150 mV
25 uS
-
-
-
-
Settling Time
-
100% ~ 50% Max Load
-
150 mV
25 uS
Settling Time
V
O
=0.75 V -
3.63 V
-
Test conditions:
di/dt=2.5 A/ uS; Vin=5 V; with
external 10 uF Tantalum
capacitor and 1 uF/10 V TDK
ceramic capacitor at the output.
Note
: All specifications are typical at nominal input (Vin=5 V), full load at 25
°
C
unless otherwise stated.